Emerson T205 Series Tank Blanketing Regulators Data Sheet

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Bulletin 74.1:T205
December 2014

T205 Series Tank Blanketing Regulators

Figure 1. Type T205 Tank Blanketing Regulator

Contents

Features

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Low-pressure setting and fast speed of response –
T205 Series regulator has a low-pressure setting as
low as 1 in. w.c. / 2.5 mbar. It can respond quickly to
downstream flow demand and pressure changes due to
direct-operated structure.

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Principle of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Overpressure Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Capacity Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Accurate control and small lockup pressure – Large
diaphragm area provides very accurate throttling control
at low pressure settings. An added benefit of lever style
regulator is that it can shut off the process fluid using small
lockup pressure.
Multiple applications – T205 Series regulator can be used
for a wide variety of gases including air, nitrogen, natural
gas, sour gas (NACE Construction), butane and propane.
Corrosion resistance – Multiple regulator constructions
are available in a variety of materials for compatibility with
corrosive process gases.
Easy conversion between constructions – Converts
easily from the Type T205 to the Type T205M with two
O-rings and one machine screw.

D103747X012

Sour gas service capability – Available construction to
meet NACE MR0175-2002.

www.fisherregulators.com

Bulletin 74.1:T205
Specifications
The Specifications section on this page provides the ratings and other specifications for the T205 Series. Factory specification
such as type, maximum inlet pressure, maximum temperature, maximum outlet pressure, spring range and orifice size are
stamped on the nameplate fastened on the regulator at the factory.
Product Configurations
Type T205: Tank blanketing regulator with outlet
pressure range of 1 in. w.c. to 7 psig / 2.5 mbar to
0.48 bar in seven different spring ranges and has
internal pressure registration requiring no downstream
control line.
Type T205M: Similar to Type T205 but has a blocked
throat and a downstream control line connection for
external pressure registration.
Body Sizes and End Connection Styles
See Table 1
Maximum Allowable Inlet Pressure(1)
See Table 1
Maximum Operating Inlet Pressure(1)
See Table 2
Maximum Outlet (Casing) Pressure(1)
Gray cast iron: 35 psig / 2.4 bar
WCC Carbon steel or CF8M/CF3M Stainless steel:
75 psig / 5.2 bar
Maximum Emergency Outlet Pressure to Avoid Internal
Parts Damage(1)
With Nitrile (NBR) or Fluorocarbon (FKM)
diaphragm: 35 psig / 2.4 bar
With Fluorinated Ethylene Propylene (FEP)
diaphragm: 10 psig / 0.69 bar
Outlet (Control) Pressure Range(1)
See Table 3
Shutoff Classification per ANSI/FCI 70-3-2004
Class VI (Soft Seat)
Pressure Registration
Type T205: Internal
Type T205M: External
Orifice Size and Flow Coefficients
See Table 5

Body and Casing Materials
Gray cast iron, WCC Carbon steel and
CF8M/CF3M Stainless steel(2)
Trim Materials
See Table 4
Flow Capacities
See Tables 7 to 10
Cv Coefficients
See Tables 11 and 12
Material Temperature Capabilities(1)(3)
Elastomer Parts
  Nitrile (NBR):
   -40 to 180°F / -40 to 82°C
  Fluorinated Ethylene Propylene (FEP):
   -20 to 180°F / -29 to 82°C
  Fluorocarbon (FKM):
   40 to 300°F / 4 to 149°C
  Ethylene Propylene Diene (EPDM):
   -20 to 225°F / -29 to 107°C
    Perfluoroelastomer (FFKM):
   0 to 300°F / -18 to 149°C
Body Materials
  Gray Cast Iron: -20 to 300°F / -29 to 149°C
  WCC Carbon Steel: -20 to 300°F / -29 to 149°C
  CF8M/CF3M Stainless Steel:
   -40 to 300°F / -40 to 149°C
Spring Case Vent Connection
1/4 NPT
Diaphragm Case Control Line Connection
(Type T205M)
1/2 NPT
Approximate Weight
17.7 lbs / 8 kg

1. The pressure/temperature limits in this Bulletin and any applicable standard or code limitation should not be exceeded.
2. Pipe nipples and flanges are 316 Stainless steel for flanged body assemblies.
3. See Table 4 for operating temperature ranges for available trim combinations.

Introduction

Principle of Operation

T205 Series tank blanketing regulator is a direct-operated
and spring-loaded regulator (Figure 1). The regulator
prevents a stored liquid from vaporizing into the atmosphere,
reduces liquid combustibility and prevents oxidation or
contamination of the product by reducing its exposure
to air. T205 Series maintains a slightly positive pressure
and thereby reduces the possibility of tank wall collapse
during pump out operation. T205 Series is available in two
configurations: Type T205 for internal pressure registration
and Type T205M for external pressure registration.

T205 Series tank blanketing regulator controls the vapor space
pressure over a stored liquid. When liquid is pumped out of the
tank or vapors in the tank condense, the pressure in the tank
decreases. Tank pressure is sensed by the actuator diaphragm.
Spring force pushes the pusher post assembly, the valve disk
moves away from the orifice, allowing the gas flow to increase
to maintain tank pressure. See Figures 2 and 3.

2

When pressure in the tank increases, the actuator
diaphragm is pushed. Through the action of the pusher post
assembly, lever and valve stem, the valve disk moves closer
to the orifice reducing gas flow.

Bulletin 74.1:T205
VALVE DISK

STEM
LEVER
PUSHER
POST

PIPE PLUG

DIAPHRAGM

PITOT TUBE

CONTROL SPRING

TYPE Y602-1 VENT

INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE

Figure 2. Type T205 with Internal Registration Operational Schematics
VALVE DISK

O-RING STEM SEAL
PUSHER
POST

CONTROL LINE
CONNECTION

THROAT SEAL

TYPE Y602-1 VENT

INLET PRESSURE

CONTROL SPRING

OUTLET PRESSURE
ATMOSPHERIC PRESSURE

Figure 3. Type T205M with External Registration Operational Schematics

3

Bulletin 74.1:T205
HORIZONTAL PIPELINE

VENT POINTED DOWN

DOWNSTREAM CONTROL LINE

HORIZONTAL PIPELINE

Type t205

Type t205M

Inlet pressure
Outlet pressure
Atmospheric pressure
DOWNSTREAM CONTROL PRESSURE

Figure 4. T205 Series Actuator Casing Drainage Schematic
POSITION 3
POSITION 1 (STANDARD)

POSITION 2

BODY POSITION

A (STANDARD)

B
POSITION 4

D
POSITION 3
POSITION 1 (STANDARD)

POSITION 2

BODY POSITION
C
A (STANDARD)

VENT POSITION
POSITION 3

OSITION 2

POSITION
4
D

B

BODY POSITION
BODY POSITION

Figure 5. Body and Vent Orientation
C

A (STANDARD)

VENT POSITION
B

D

4

Bulletin 74.1:T205
Table 1. Body Sizes, End Connection Styles and Maximum Allowable Inlet Pressure
BODY SIZE
In.

DN

3/4 or 1

20 or 25

MAXIMUM ALLOWABLE INLET PRESSURE

BODY MATERIAL

END CONNECTION STYLE(1)

psig

bar

Gray Cast iron

NPT

150

10.3

WCC Carbon steel

NPT, CL150 RF,
CL300 RF or PN 16/25/40 RF

200

13.8

CF8M/CF3M Stainless steel(2)

1. All flanges are welded. Weld-on flange dimension is 14 in. / 356 mm face-to-face.
2. Pipe nipples and flanges are 316 Stainless steel for flanged body assemblies.

Table 2. T205 Series Maximum Operating Inlet Pressure
Maximum Operating Inlet Pressure
Orifice Size

In.

1 to 2.5 In. w.c. /
2.5 to 6.2 mbar
Outlet (Control)
Pressure Setting

mm

psig

bar

2.5 to 7 In. w.c. /
6.2 to 17 mbar
Outlet (Control)
Pressure Setting
psig

7 to 16 In. w.c. /
17 to 40 mbar
Outlet (Control)
Pressure Setting

bar

psig

bar

0.5 to 1.2 psig /
34 to 83 mbar
Outlet (Control)
Pressure Setting
psig

1.2 to 2.5 psig /
83 to 172 mbar
Outlet (Control)
Pressure Setting

bar

2.5 to 4.5 psig /
0.17 to 0.31 bar
Outlet (Control)
Pressure Setting

4.5 to 7 psig /
0.31 to 0.48 bar
Outlet (Control)
Pressure Setting

psig

bar

psig

bar

psig

bar

3/4 In. / DN 20 Body Size
1/8

3.2

200(1)

13.8(1)

200(1)

13.8(1)

200(1)

13.8(1)

200(1)

13.8(1)

200(1)

13.8(1)

200(1)

13.8(1)

200(1)

13.8(1)

8.62

175

12.1

200

13.8

200

13.8

200

13.8

200

13.8

200

(1)

1/4

6.4

125

13.8(1)

3/8

9.5

1/2

13

60

4.14

80

5.52

200(1)

13.8(1)

200(1)

13.8(1)

200(1)

13.8(1)

200(1)

13.8(1)

200(1)

13.8(1)

30

2.07

40

2.76

125

8.62

150

10.3

200(1)

13.8(1)

200(1)

13.8(1)

200(1)

13.8(1)

14

20

1.38

30

2.07

100

6.89

125

8.62

200

13.8

200

13.8

200

(1)

9/16

13.8(1)

1/8

3.2

200(1)

13.8(1)

200(1)

13.8(1)

200(1)

13.8(1)

200(1)

13.8(1)

1/4

6.4

100

6.89

150

10.3

150

10.3

150

3/8

9.5

40

2.76

80

5.52

150

10.3

1/2

13

30

2.07

40

2.76

125

9/16

14

20

1.38

15

1.03

100

(1)

(1)

(1)

(1)

(1)

(1)

(1)

(1)

(1)

(1)

(1)

(1)

(1)

(1)

1 In. / DN 25 Body Size
200(1)

13.8(1)

200(1)

13.8(1)

200(1)

13.8(1)

10.3

200

(1)

13.8

(1)

200

(1)

13.8

(1)

200

(1)

13.8(1)

150

10.3

200

(1)

13.8

(1)

200

(1)

13.8

(1)

200

(1)

13.8(1)

8.62

150

10.3

200

(1)

13.8

(1)

200

(1)

13.8

(1)

200

(1)

13.8(1)

6.89

125

8.62

200(1)

200(1)

13.8(1)

13.8(1)

200(1)

13.8(1)

1. Inlet pressure is limited to 150 psig / 10.3 bar for gray cast iron bodies.

Table 3. Outlet (Control) Pressures and Spring Part Numbers
Outlet (Control) Pressure Ranges

Spring Wire Diameter

Spring Color

Spring Free Length

In. w.c.

mbar

1 to 2.5(1)(2)

2.5 to 6.2(1)(2)

2.5 to 7(1)

6.2 to 17(1)

Red

0.085

2.2

3.63

92.2

7 to 16

17 to 40

Unpainted

0.105

2.7

3.75

95.2

0.5 to 1.2 psig

34 to 83

Yellow

0.114

2.9

4.31

109

Orange

In.

mm

In.

mm

0.072

1.8

3.25

82.6

1.2 to 2.5 psig

83 to 172

Green

0.156

4.0

4.06

103

2.5 to 4.5 psig

0.17 to 0.31 bar

Light blue

0.187

4.8

3.94

100

4.5 to 7 psig

0.31 to 0.48 bar

Black

0.218

5.5

3.98

101

1. To achieve the published outlet pressure range the spring case must be installed pointing down.
2. Do not use Fluorocarbon (FKM) diaphragm with this spring at diaphragm temperatures lower than 60°F / 16°C.

Table 4. Trim Materials
BODY AND
SPRING CASE

Gray cast iron,
WCC Carbon
steel or CF8M/
CF3M Stainless
steel

DIAPHRAGM
HEAD

LEVER
ASSEMBLY

GUIDE
INSERT

304 Stainless 302 Stainless 316 Stainless
Steel
Steel
Steel

Trim Option
CODE

Diaphragm
Material

Disk and o-ring
Material

OPERATING
TEMPERATuRE RANGES

Standard

Nitrile (NBR)

Nitrile (NBR)

-40 to 180°F / -40 to 82°C

VV

Fluorocarbon (FKM)

Fluorocarbon (FKM)

40 to 300°F / 4 to 149°C

TN

Fluorinated Ethylene
Propylene (FEP)

Nitrile (NBR)

-20 to 180°F / -29 to 82°C

TV

Fluorinated Ethylene
Propylene (FEP)

Fluorocarbon (FKM)

40 to 180°F / 4 to 82°C

TK

Fluorinated Ethylene
Propylene (FEP)

Perfluoroelastomer (FFKM)

0 to 180°F / -18 to 82°C

TE

Fluorinated Ethylene
Propylene (FEP)

Ethylenepropylene (EPDM)

-20 to 180°F / -29 to 82°C

5

Bulletin 74.1:T205
Table 5. Flow Coefficients
Orifice Size

Type

T205 and T205M

Flow Coefficients (Wide-Open)

In.

mm

Cg

Cv

C1

1/8

3.2

12

0.36

1/4

6.4

47

1.40

33.3
33.1

3/8

9.5

101

2.96

34.1

1/2

13

174

5.20

33.4

9/16

14

205

6.20

33.1

Table 6. Correction Factors (For converting Air Flow Rates to Other Gas Flow Rates)(1)
Blanket gas

Specific gravity

Correction factor

Natural Gas

0.60

1.291

Nitrogen

0.97

1.015

Dry CO2

1.52

0.811

1. For gases of other specific gravities, use equation below.
Correction Factor =

1.00
SG

Installation
The regulator may be installed in any position as long as
the flow through the body is in the direction indicated by
the arrow on the body when using a Type T205 or T205M
regulator. To achieve the published capacities at low
setpoint, the spring case barrel should be installed pointed
down as shown in Figures 2 and 3. For complete actuator
drainage, the regulator should be installed as shown in
Figure 4.

The manufacturing processes and materials used by
Emerson Process Management Regulator Technologies, Inc.
assure that all products specified for sour gas service comply
with the chemical, physical and metallurgical requirements
of NACE MR0175-2002. Customers have the responsibility
to specify correct materials. Environmental limitations may
apply and shall be determined by the user.

The diaphragm casing may be rotated in order to obtain
desired positioning. The Type T205M requires a downstream
control line. The control line should be installed sloping
downward toward the tank to prevent condensation buildup
and avoid low points (or traps) that could catch liquid. The
sensing line must enter the tank above the liquid level at a
point that senses the vapor space pressure and is free from
turbulence associated with tank nozzles or vents.

Capacity Information
Capacity tables are based on 1.0 specific gravity air. If other
blanketing gas is used, convert the tabular values as follows.
For blanketing (pad) gases other than air, multiply the given
air flow rate by the correction factors in Table 6. For gases of
other specific gravities, divide the given air flow rate by the
square root of the appropriate specific gravity.

Overpressure Protection
The T205 Series regulators have an outlet pressure rating
lower than their inlet pressure rating. If actual inlet pressure
can exceed the outlet pressure rating, outlet overpressure
protection is necessary.
Refer to the Capacity Information section and the relief
sizing coefficients in Table 5 to determine the required relief
valve capacity.

Universal NACE Compliance
Optional materials are available for applications handling
sour gases. These constructions comply with the
recommendations of National Association of Corrosion
Engineers (NACE) sour service standards.

6

Q=

520
GT

CgP1SI

3417
C1

ΔP
P1

DEG

where,
	
Q    =	
	
G    =	
	
T   =	
		
	Cg   =	
	P1   =	
	C1  =	
	
ΔP  =	

gas flow rate, SCFH
specific gravity of the gas
absolute temperature of gas
at inlet, °Rankine
gas sizing coefficient
absolute inlet pressure, psia
Cg/Cv, flow coefficient
pressure drop across the regulator, psi

Bulletin 74.1:T205
Table 7. Flow Capacities of Type T205 with 3/4 in. / DN 20 Body Size
SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

1 in. w.c. /
2.5 mbar

OFFSET FROM
SETPOINT

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

1 to 2.5 in. w.c. /
2.5 to 6.2 mbar
Orange

2 in. w.c. /
5.0 mbar

2.5 in. w.c. / 6.2
mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

2.5 to 7 in. w.c. /
6.2 to 17 mbar
Red

4 in. w.c. /
10 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

INLET
PRESSURE

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2

1/4 / 6.4

3/8 / 9.5

1/2 / 13

9/16 / 14

psig

bar

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

1

0.07

74

1.98

215

5.76

315

8.44

584

15.7

565

15.1

2

0.14

117

3.14

380

10.2

612

16.4

666

17.8

778

20.9

Nm3/h

5

0.34

196

5.25

604

16.2

767

20.6

973

26.1

1041

27.9

10

0.69

280

7.50

813

21.8

966

25.9

1301

34.9

1325

35.5

15

1.0

346

9.27

1019

27.3

1222

32.7

1531

41.0

1146

30.7

20

1.4

411

11.0

1190

31.9

1352

36.2

1707

45.7

1173

31.4

1518

40.7

30

2.1

533

14.3

1487

39.9

1575

42.2

40

2.8

655

17.6

1809

48.5

1236

33.1

1190

31.9

60

4.1

877

23.5

1904

51.0

80

5.5

1105

29.6

1586

42.5

100

6.9

1352

36.2

1618

43.4

125

8.6

1647

44.1

1637

43.9

150

10.3

1936

51.9

175

12.1

1866

50.0

200

13.8

1452

38.9

1

0.07

70

1.88

212

5.68

279

7.48

442

11.8

466

12.5

2

0.14

108

2.89

360

9.65

569

15.2

599

16.1

700

18.8

5

0.34

188

5.04

567

15.2

720

19.3

885

23.7

977

26.2

10

0.69

282

7.56

808

21.7

919

24.6

1250

33.5

1259

33.7

15

1.0

353

9.46

971

26.0

1108

29.7

1502

40.3

1145

30.7

20

1.4

415

11.1

1165

31.2

1334

35.8

1217

32.6

1047

28.1

1204

32.3

30

2.1

540

14.5

1503

40.3

1529

41.0

40

2.8

656

17.6

1662

44.5

1209

32.4

2346

62.9

60

4.1

875

23.4

1885

50.5

80

5.5

1129

30.3

1292

34.6

100

6.9

1367

36.6

1568

42.0

125

8.6

1662

44.5

1564

41.9

150

10.3

1857

49.8

175

12.1

1817

48.7

200

13.8

1472

39.4

1

0.07

69

1.85

124

3.32

236

6.32

318

8.52

332

8.90

2

0.14

95

2.55

178

4.77

429

11.5

495

13.3

473

12.7

5

0.34

150

4.02

321

8.60

531

14.2

730

19.6

777

20.8

10

0.69

265

7.10

483

12.9

761

20.4

1014

27.2

1121

30.0

15

1.0

347

9.30

611

16.4

953

25.5

1272

34.1

1116

29.9

20

1.4

409

11.0

765

20.5

1229

32.9

1557

41.7

1143

30.6

30

2.1

532

14.3

1764

47.3

1411

37.8

1019

27.3

1131

30.3

40

2.8

653

17.5

1328

35.6

1438

38.5

972

26.0

7.08

60

4.1

831

22.3

1768

47.4

2170

58.2

80

5.5

1045

28.0

1672

44.8

1435

38.5

100

6.9

1265

33.9

2644

70.9

125

8.6

1524

40.8

1338

35.9

150

10.3

1567

42.0

1509

40.4

175

12.1

1747

46.8

1553

41.6

200

13.8

1431

38.4

1

0.07

66

1.77

115

3.08

161

4.31

266

7.13

264

2

0.14

95

2.55

196

5.25

368

9.86

447

12.0

424

11.4

5

0.34

149

3.99

366

9.81

488

13.1

620

16.6

698

18.7

10

0.69

205

5.49

517

13.9

706

18.9

976

26.2

1175

31.5

15

1.0

287

7.69

694

18.6

908

24.3

1209

32.4

931

25.0

20

1.4

356

9.54

853

22.9

1090

29.2

1482

39.7

1049

28.1

30

2.1

504

13.5

1655

44.4

1380

37.0

1794

48.1

1035

27.7

- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

7

Bulletin 74.1:T205
Table 7. Flow Capacities of Type T205 with 3/4 in. / DN 20 Body Size (continued)
SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

4 in. w.c. /
10 mbar

OFFSET FROM
SETPOINT

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

2.5 to 7 in. w.c. /
6.2 to 17 mbar
Red

7 in. w.c. /
17.4 mbar

8 in. w.c. /
20 mbar

-2 to 2 in. w.c. /
-5.0 to 5.0 mbar

-2 to 2 in. w.c. /
-5.0 to 5.0 mbar

7 to 16 in. w.c. /
17 to 40 mbar
Unpainted

12 in. w.c. /
30 mbar

20% Gauge

INLET
PRESSURE

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2

3/8 / 9.5

1/2 / 13

psig

bar

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

40

2.8

643

17.2

1448

38.8

1474

39.5

1570

42.1

60

4.1

861

23.1

1713

45.9

1434

38.4

80

5.5

1095

29.3

1747

46.8

1389

37.2

100

6.9

1249

33.5

2673

71.6

125

8.6

1503

40.3

1596

42.8

9/16 / 14
SCFH

Nm3/h

150

10.3

1433

38.4

1563

41.9

175

12.1

1725

46.2

1628

43.6

200

13.8

1545

41.4

1

0.07

71

1.90

137

3.67

253

6.78

332

8.90

333

8.92

2

0.14

99

2.65

280

7.50

495

13.3

613

16.4

562

15.1

5

0.34

179

4.80

500

13.4

647

17.3

916

24.5

957

25.6

10

0.69

268

7.18

723

19.4

938

25.1

1299

34.8

1362

36.5

15

1.0

351

9.41

894

24.0

1147

30.7

1569

42.0

1422

38.1

20

1.4

416

11.1

1058

28.4

1354

36.3

1590

42.6

1463

39.2

1482

39.7

30

2.1

539

14.4

1545

41.4

1483

39.7

2100

56.3

40

2.8

644

17.3

1689

45.3

2077

55.7

1726

46.3

60

4.1

882

23.6

1855

49.7

2241

60.1

80

5.5

1134

30.4

2704

72.5

2442

65.4

100

6.9

1372

36.8

2745

73.6

125

8.6

1679

45.0

1729

46.3

150

10.3

1926

51.6

1619

43.4

175

12.1

1672

44.8

1720

46.1

200

13.8

1598

42.8

1

0.07

62

1.66

146

3.91

192

5.15

233

6.24

314

8.42

2

0.14

96

2.57

220

5.90

361

9.67

473

12.7

503

13.5

5

0.34

164

4.40

428

11.5

555

14.9

831

22.3

861

23.1

8

0.55

200

5.36

537

14.4

735

19.7

1029

27.6

1107

29.7

20

1.4

390

10.5

980

26.3

1241

33.3

1647

44.1

1550

41.5

35

2.4

579

15.5

1491

40.0

1521

40.8

1552

41.6

1675

44.9

60

4.1

850

22.8

1698

45.5

2227

59.7

2629

70.5

3264

87.5

75

5.2

1029

27.6

1923

51.5

2188

58.6

2633

70.6

3411

91.4

2872

77.0

100

6.9

1318

35.3

2699

72.3

2077

55.7

2277

61.0

125

8.6

1602

42.9

1635

43.8

3029

81.2

2155

57.8

150

10.3

1862

49.9

1645

44.1

1600

42.9

175

12.1

1820

48.8

1678

45.0

1030

27.6

200

13.8

1462

39.2

1806

48.4

1160

31.1

1

0.07

83

2.22

105

2.81

213

5.71

246

6.59

223

5.98

2

0.14

92

2.47

242

6.49

354

9.49

418

11.2

468

12.5

5

0.34

173

4.64

433

11.6

573

15.4

796

21.3

859

23.0

8

0.55

191

5.12

562

15.1

720

19.3

1031

27.6

1145

30.7

20

1.4

387

10.4

979

26.2

1228

32.9

1727

46.3

1545

41.4

35

2.4

583

15.6

1432

38.4

1517

40.7

1769

47.4

2541

68.1

60

4.1

872

23.4

1783

47.8

2294

61.5

2538

68.0

3339

89.5

75

5.2

1013

27.1

1996

53.5

2156

57.8

2669

71.5

3452

92.5

2779

74.5

100

6.9

1288

34.5

2645

70.9

2123

56.9

2387

64.0

125

8.6

1565

41.9

1732

46.4

3066

82.2

2314

62.0

150

10.3

1833

49.1

1900

50.9

1851

49.6

175

12.1

1776

47.6

1887

50.6

1396

37.4

200

13.8

2498

66.9

2010

53.9

1387

37.2

- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

8

1/4 / 6.4

Bulletin 74.1:T205
Table 7. Flow Capacities of Type T205 with 3/4 in. / DN 20 Body Size (continued)
SPRING RANGE
AND COLOR

7 to 16 in. w.c. /
17 to 40 mbar
Unpainted

OUTLET
PRESSURE
SETTING

16 in. w.c. / 40
mbar

0.58 psig /
40 mbar

OFFSET FROM
SETPOINT

20% Gauge

20% Gauge

0.5 to 1.2 psig /
34 to 83 mbar
Yellow

1 psi /
69 mbar

1.2 to 2.5 psig /
83 to 172 mbar
Green

1.2 psi /
83 mbar

20% Gauge

20% Gauge

INLET
PRESSURE
psig

bar

1

0.07

2

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2

1/4 / 6.4

SCFH

Nm3/h

SCFH
110

2.95

0.14

96

2.57

234

6.27

Nm3/h

3/8 / 9.5
SCFH

1/2 / 13
Nm3/h

9/16 / 14

Nm3/h

SCFH

SCFH

Nm3/h

197

5.28

222

5.95

236

6.32

375

10.0

470

12.6

524

14.0

5

0.34

178

4.77

467

12.5

629

16.9

912

24.4

926

24.8

8

0.55

208

5.57

587

15.7

799

21.4

1155

31.0

1217

32.6

20

1.4

377

10.1

1050

28.1

1315

35.2

1653

44.3

1752

47.0

35

2.4

584

15.7

1593

42.7

1683

45.1

1857

49.8

2814

75.4

60

4.1

849

22.8

1953

52.3

2320

62.2

2983

79.9

3404

91.2

75

5.2

1052

28.2

2647

70.9

2218

59.4

2805

75.2

3611

96.8

100

6.9

1322

35.4

2620

70.2

2139

57.3

2816

75.5

2967

79.5

2590

69.4

125

8.6

1609

43.1

2845

76.2

3162

84.7

150

10.3

1890

50.7

2117

56.7

3365

90.2

175

12.1

1901

50.9

2134

57.2

3319

88.9

200

13.8

2459

65.9

2496

66.9

3469

93.0

2

0.14

115

3.08

216

5.79

357

9.57

459

12.3

476

12.8

6

0.41

174

4.66

448

12.0

607

16.3

909

24.4

909

24.4

10

0.69

235

6.30

623

16.7

851

22.8

1246

33.4

1373

36.8

30

2.1

512

13.7

1277

34.2

1648

44.2

1484

39.8

2029

54.4

45

3.1

666

17.8

1957

52.4

1571

42.1

2117

56.7

2885

77.3

60

4.1

844

22.6

1920

51.5

2576

69.0

1979

53.0

3381

90.6

80

5.5

1087

29.1

2719

72.9

2253

60.4

2517

67.5

2910

78.0

100

6.9

1318

35.3

2734

73.3

2177

58.3

2740

73.4

2979

79.8

3075

82.4

125

8.6

1590

42.6

1925

51.6

2685

72.0

2155

57.8

150

10.3

1875

50.2

2012

53.9

3031

81.2

2144

57.5

175

12.1

1909

51.2

1918

51.4

3022

81.0

200

13.8

2517

67.5

1982

53.1

2586

69.3

2

0.14

108

2.89

265

7.10

401

10.7

521

14.0

528

14.2

6

0.41

191

5.12

537

14.4

755

20.2

1083

29.0

1096

29.4

10

0.69

259

6.94

761

20.4

991

26.6

1419

38.0

1672

44.8

30

2.1

544

14.6

1478

39.6

1802

48.3

2203

59.0

2236

59.9

60

4.1

898

24.1

2241

60.1

2438

65.3

2675

71.7

3592

96.3

80

5.5

1139

30.5

2858

76.6

2348

62.9

2986

80.0

3869

104

100

6.9

1383

37.1

2908

77.9

2279

61.1

3155

84.6

3273

87.7

3409

91.4

125

8.6

1667

44.7

2193

58.8

3364

90.2

2937

78.7

150

10.3

1976

53.0

3339

89.5

3608

96.7

2912

78.0

175

12.1

2259

60.5

3769

101

3664

98.2

200

13.8

2562

68.7

2634

70.6

3748

100

4

0.28

120

3.22

264

7.08

406

10.9

572

15.3

578

15.5

8

0.55

164

4.40

431

11.6

580

15.5

883

23.7

905

24.3

12

0.83

212

5.68

552

14.8

754

20.2

1134

30.4

1146

30.7

30

2.1

439

11.8

1074

28.8

1442

38.6

1558

41.8

1978

53.0

60

4.1

765

20.5

1815

48.6

2373

63.6

3199

85.7

3221

86.3

80

5.5

986

26.4

1997

53.5

2349

63.0

3243

86.9

3570

95.7

100

6.9

1235

33.1

2788

74.7

2271

60.9

2644

70.9

3088

82.8

125

8.6

1462

39.2

3128

83.8

2207

59.1

2973

79.7

3341

89.5

150

10.3

1627

43.6

3452

92.5

3295

88.3

2729

73.1

3401

91.1

175

12.1

1813

48.6

4092

110

3465

92.9

2680

71.8

3495

93.7

200

13.8

2501

67.0

3873

104

3538

94.8

2782

74.6

3445

92.3

- Black areas indicate where desired flow capacity is not obtainable for a given inlet pressure.
- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

9

Bulletin 74.1:T205
Table 7. Flow Capacities of Type T205 with 3/4 in. / DN 20 Body Size (continued)
SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

OFFSET FROM
SETPOINT

INLET
PRESSURE
psig

1.2 to 2.5 psig /
83 to 172 mbar
Green

2.5 psi /
172 mbar

2.5 psi /
0.17 bar

20% Gauge

20% Gauge

2.5 to 4.5 psig /
0.17 to 0.31 bar
Light blue

4.5 psi /
0.31 bar

4.5 psi /
0.31 bar

20% Gauge

20% Gauge

4.5 to 7 psig /
0.31 to 0.48 bar
Black

7 psi /
0.48 bar

10

20% Gauge

bar

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2
SCFH

Nm3/h

1/4 / 6.4
SCFH

Nm3/h

3/8 / 9.5
SCFH

Nm3/h

1/2 / 13
SCFH

Nm3/h

9/16 / 14
SCFH

Nm3/h

6

0.41

159

4.26

465

12.5

677

18.1

943

25.3

1015

27.2

10

0.69

240

6.43

672

18.0

954

25.6

1363

36.5

1431

38.4

30

2.1

497

13.3

1441

38.6

2073

55.6

2607

69.9

1943

52.1

60

4.1

864

23.2

2288

61.3

2697

72.3

3216

86.2

3980

107

80

5.5

1143

30.6

3008

80.6

3224

86.4

3821

102

4444

119

100

6.9

1354

36.3

3222

86.3

3178

85.2

4208

113

4698

126

125

8.6

1646

44.1

3517

94.3

3539

94.8

3893

104

4118

110

150

10.3

1906

51.1

3893

104

3961

106

3760

101

4332

116

175

12.1

2235

59.9

4555

122

3974

107

3884

104

4449

119

200

13.8

2528

67.8

4627

124

4158

111

3511

94.1

4515

121

4

0.28

128

3.43

209

5.60

335

8.98

466

12.5

487

13.1

8

0.55

210

5.63

416

11.1

564

15.1

832

22.3

873

23.4

12

0.83

277

7.42

539

14.4

749

20.1

1080

28.9

1167

31.3

30

2.1

518

13.9

1022

27.4

1777

47.6

1766

47.3

1891

50.7
93.5

60

4.1

897

24.0

1804

48.3

2474

66.3

2776

74.4

3488

80

5.5

1124

30.1

2084

55.9

2848

76.3

3774

101

4004

107

100

6.9

1364

36.6

2763

74.0

2907

77.9

3837

103

3626

97.2

125

8.6

1603

43.0

3237

86.8

3392

90.9

3810

102

3847

103

150

10.3

1951

52.3

3504

93.9

3765

101

3898

104

3933

105

175

12.1

2208

59.2

3917

105

3874

104

3746

100

4138

111

200

13.8

2493

66.8

3965

106

4060

109

3520

94.3

4138

111

8

0.55

194

5.20

416

11.1

714

19.1

992

26.6

1005

26.9

12

0.83

283

7.58

658

17.6

908

24.3

1357

36.4

1511

40.5
69.9

30

2.1

520

13.9

1290

34.6

1830

49.0

2593

69.5

2610

60

4.1

909

24.4

2201

59.0

3099

83.1

3732

100

4352

117

80

5.5

1143

30.6

2727

73.1

3470

93.0

3865

104

4886

131

100

6.9

1300

34.8

3277

87.8

3393

90.9

4575

123

5315

142

125

8.6

1673

44.8

3690

98.9

3862

104

5056

136

5623

151

150

10.3

1950

52.3

4109

110

4346

116

5459

146

5495

147

175

12.1

2032

54.5

4462

120

4569

122

5313

142

5459

146

200

13.8

2174

58.3

5005

134

4757

127

4826

129

5587

150

9

0.62

188

5.04

407

10.9

566

15.2

791

21.2

885

23.7

12

0.83

205

5.49

516

13.8

693

18.6

829

22.2

1109

29.7

30

2.1

438

11.7

1012

27.1

1570

42.1

1891

50.7

2136

57.2
95.8

60

4.1

753

20.2

1745

46.8

2403

64.4

2785

74.6

3574

80

5.5

930

24.9

2161

57.9

2974

79.7

3727

99.9

4195

112

100

6.9

1177

31.5

2533

67.9

3099

83.1

4542

122

4628

124

125

8.6

1390

37.3

3168

84.9

3546

95.0

4202

113

4695

126

150

10.3

1658

44.4

3680

98.6

4032

108

5014

134

4836

130

175

12.1

1871

50.1

3988

107

4236

114

5155

138

5185

139

200

13.8

2254

60.4

4232

113

4570

122

4663

125

5029

135

9

0.62

173

4.64

402

10.8

618

16.6

843

22.6

563

15.1

12

0.83

222

5.95

573

15.4

777

20.8

1177

31.5

830

22.2
49.0

30

2.1

490

13.1

1239

33.2

2040

54.7

2328

62.4

1830

60

4.1

849

22.8

2156

57.8

2833

75.9

3687

98.8

4379

117

80

5.5

1065

28.5

2658

71.2

3680

98.6

4649

125

5197

139

100

6.9

1319

35.3

3308

88.7

3952

106

4998

134

5791

155

125

8.6

1582

42.4

3836

103

4290

115

5945

159

6199

166

150

10.3

1858

49.8

4240

114

4756

127

6269

168

6350

170

175

12.1

2180

58.4

4688

126

5117

137

5788

155

6358

170

200

13.8

2473

66.3

5153

138

5382

144

6439

173

6514

175

Bulletin 74.1:T205
Table 8. Flow Capacities of Type T205 with 1 in. / DN 25 Body Size
SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

OFFSET FROM
SETPOINT

INLET
PRESSURE
psig

1 in. w.c. /
2.5 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

1 to 2.5 in. w.c. /
2.5 to 6.2 mbar
Orange

2 in. w.c. /
5.0 mbar

2.5 in. w.c. / 6.2
mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

2.5 to 7 in. w.c. /
6.2 to 17 mbar
Red

4 in. w.c. /
10 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

bar

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2
SCFH

Nm3/h

1/4 / 6.4
SCFH

Nm3/h

3/8 / 9.5
SCFH

Nm3/h

1/2 / 13
SCFH

Nm3/h

9/16 / 14
SCFH

Nm3/h

1

0.07

88

2.36

334

8.95

611

16.4

950

25.5

1101

29.5

2

0.14

129

3.46

479

12.8

837

22.4

1258

33.7

1418

38.0

5

0.34

211

5.65

756

20.3

1314

35.2

2067

55.4

2385

63.9

10

0.69

294

7.88

1069

28.6

1958

52.5

3158

84.6

1934

51.8

15

1.0

349

9.35

1318

35.3

2475

66.3

2486

66.6

1934

51.8

20

1.4

414

11.1

1587

42.5

2332

62.5

1789

47.9

1836

49.2

1919

51.4

30

2.1

538

14.4

2057

55.1

2104

56.4

40

2.8

668

17.9

1996

53.5

1917

51.4

60

4.1

912

24.4

1923

51.5

80

5.5

1126

30.2

1640

44.0

1759

47.1

100

6.9

1373

36.8

125

8.6

1661

44.5

150

10.3

1941

52.0

175

12.1

2260

60.6

200

13.8

2552

68.4

1

0.07

95

2.55

332

8.90

599

16.1

890

23.9

1065

28.5

2

0.14

118

3.16

342

9.17

818

21.9

1247

33.4

1381

37.0

5

0.34

204

5.47

688

18.4

1314

35.2

2094

56.1

2400

64.3

10

0.69

298

7.99

1036

27.8

1945

52.1

2806

75.2

2655

71.2

15

1.0

368

9.86

1319

35.3

2659

71.3

2136

57.2

1931

51.8

20

1.4

411

11.0

1569

42.0

2620

70.2

1875

50.2

1736

46.5

1801

48.3

30

2.1

538

14.4

2013

53.9

2060

55.2

40

2.8

676

18.1

1854

49.7

1834

49.2

60

4.1

906

24.3

1696

45.5

80

5.5

1139

30.5

1722

46.1

1631

43.7

100

6.9

1383

37.1

125

8.6

1677

44.9

150

10.3

1977

53.0

175

12.1

2284

61.2

200

13.8

2544

68.2

1

0.07

96

2.57

207

5.55

385

10.3

521

14.0

512

13.7

2

0.14

119

3.19

334

8.95

519

13.9

976

26.2

823

22.1

5

0.34

181

4.85

555

14.9

1246

33.4

1988

53.3

2370

63.5

10

0.69

280

7.50

991

26.6

1908

51.1

3132

83.9

2316

62.1

2028

54.4

15

1.0

352

9.43

1308

35.1

2435

65.3

2190

58.7

20

1.4

359

9.62

1530

41.0

2940

78.8

2094

56.1

30

2.1

539

14.4

2016

54.0

2277

61.0

1842

49.4

40

2.8

659

17.7

2232

59.8

2256

60.5

1862

49.9

60

4.1

896

24.0

1857

49.8

3013

80.7

2095

56.1

80

5.5

1131

30.3

1655

44.4

100

6.9

1237

33.2

1637

43.9

125

8.6

1572

42.1

1775

47.6

150

10.3

1875

50.2

1460

39.1

175

12.1

2232

59.8

200

13.8

2563

68.7

1

0.07

101

101

222

5.95

308

8.25

368

9.86

422

11.3

2

0.14

101

101

321

8.60

414

11.1

619

16.6

657

17.6

5

0.34

204

204

441

11.8

1024

27.4

1940

52.0

2348

62.9

10

0.69

290

290

838

22.5

1804

48.3

3184

85.3

3308

88.7

2597

69.6

15

1.0

353

353

1233

33.0

2453

65.7

3468

92.9

20

1.4

418

418

1534

41.1

2878

77.1

2088

56.0

30

2.1

534

534

2002

53.7

3923

105

1986

53.2

- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

11

Bulletin 74.1:T205
Table 8. Flow Capacities of Type T205 with 1 in. / DN 25 Body Size (continued)
SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

4 in. w.c. /
10 mbar

OFFSET FROM
SETPOINT

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

2.5 to 7 in. w.c. /
6.2 to 17 mbar
Red

7 in. w.c. /
17.4 mbar

8 in. w.c. /
20 mbar

-2 to 2 in. w.c. /
-5.0 to 5.0 mbar

-2 to 2 in. w.c. /
-5.0 to 5.0 mbar

7 to 16 in. w.c. /
17 to 40 mbar
Unpainted

12 in. w.c. /
30 mbar

20% Gauge

INLET
PRESSURE

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2

3/8 / 9.5

1/2 / 13

psig

bar

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

40

2.8

654

17.5

2503

67.1

4901

131

1881

50.4

60

4.1

854

22.9

1973

52.9

3933

105

80

5.5

1102

29.5

1796

48.1

2603

69.8

100

6.9

1371

36.7

1576

42.2

125

8.6

1668

44.7

1803

48.3

1444

38.7

9/16 / 14
SCFH

Nm3/h

150

10.3

1930

51.7

175

12.1

2140

57.4

200

13.8

2438

65.3

1

0.07

77

2.06

252

6.75

384

10.3

571

15.3

693

18.6

2

0.14

112

3.00

331

8.87

643

17.2

974

26.1

1137

30.5

5

0.34

197

5.28

601

16.1

1183

31.7

1971

52.8

2319

62.1

10

0.69

291

7.80

871

23.3

1834

49.2

3366

90.2

3706

99.3

3881

104

15

1.0

349

9.35

1235

33.1

2403

64.4

2656

71.2

20

1.4

418

11.2

1510

40.5

2903

77.8

2019

54.1

30

2.1

549

14.7

1994

53.4

2935

78.7

2039

54.6

40

2.8

648

17.4

2460

65.9

2229

59.7

1782

47.8

60

4.1

896

24.0

1978

53.0

2778

74.5

80

5.5

1125

30.2

1764

47.3

2172

58.2

100

6.9

1335

35.8

1682

45.1

125

8.6

1601

42.9

1815

48.6

1648

44.2

150

10.3

1902

51.0

175

12.1

2217

59.4

200

13.8

2337

62.6

1

0.07

67

1.80

245

6.57

253

6.78

497

13.3

510

13.7

2

0.14

113

3.03

290

7.77

463

12.4

652

17.5

782

21.0

5

0.34

189

5.07

547

14.7

906

24.3

1474

39.5

2215

59.4

8

0.55

250

6.70

665

17.8

1420

38.1

2761

74.0

3160

84.7

20

1.4

337

9.03

1318

35.3

2674

71.7

2462

66.0

2171

58.2

35

2.4

550

14.7

2225

59.6

4257

114

2330

62.4

1660

44.5

60

4.1

885

23.7

2043

54.8

3769

101

2319

62.1

1409

37.8

75

5.2

1088

29.2

1761

47.2

2895

77.6

1652

44.3

1395

37.4

1044

28.0

100

6.9

1370

36.7

1640

44.0

1961

52.6

1863

49.9

125

8.6

1667

44.7

1957

52.4

1831

49.1

895

24.0

1560

41.8

1215

32.6

150

10.3

1958

52.5

175

12.1

2210

59.2

200

13.8

2349

63.0

1

0.07

81

2.17

242

6.49

204

5.47

421

11.3

465

12.5

2

0.14

118

3.16

255

6.83

378

10.1

672

18.0

699

18.7

5

0.34

183

4.90

493

13.2

766

20.5

1249

33.5

1422

38.1

8

0.55

244

6.54

717

19.2

1313

35.2

2694

72.2

3105

83.2

20

1.4

395

10.6

1453

38.9

2381

63.8

2412

64.6

2362

63.3

35

2.4

617

16.5

2239

60.0

3775

101

2019

54.1

1809

48.5

60

4.1

895

24.0

2226

59.7

2986

80.0

1983

53.1

1533

41.1

75

5.2

1078

28.9

1914

51.3

2663

71.4

1854

49.7

1494

40.0

1179

31.6

100

6.9

1375

36.8

1802

48.3

2041

54.7

1550

41.5

125

8.6

1651

44.2

2347

62.9

1274

34.1

1447

38.8

1717

46.0

1303

34.9

150

10.3

1965

52.7

175

12.1

2276

61.0

200

13.8

2534

67.9

- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

12

1/4 / 6.4

Bulletin 74.1:T205
Table 8. Flow Capacities of Type T205 with 1 in. / DN 25 Body Size (continued)
SPRING RANGE
AND COLOR

7 to 16 in. w.c. /
17 to 40 mbar
Unpainted

OUTLET
PRESSURE
SETTING

16 in. w.c. / 40
mbar

0.58 psig /
40 mbar

OFFSET FROM
SETPOINT

20% Gauge

20% Gauge

INLET
PRESSURE

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2

1/4 / 6.4

3/8 / 9.5

1/2 / 13

9/16 / 14

psig

bar

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

1

0.07

73

1.96

230

6.16

240

6.43

423

11.3

411

11.0

2

0.14

98

2.63

275

7.37

368

9.86

699

18.7

824

22.1

Nm3/h

SCFH

Nm3/h

5

0.34

173

4.64

533

14.3

877

23.5

1280

34.3

1541

41.3

8

0.55

247

6.62

716

19.2

1372

36.8

2543

68.2

2978

79.8

20

1.4

400

10.7

1317

35.3

2679

71.8

5362

144

5845

157

35

2.4

585

15.7

2158

57.8

3493

93.6

2312

62.0

2075

55.6

60

4.1

869

23.3

2484

66.6

6906

185

2434

65.2

1892

50.7

75

5.2

1044

28.0

2009

53.8

3030

81.2

2102

56.3

1710

45.8

100

6.9

1363

36.5

2004

53.7

1785

47.8

1760

47.2

1737

46.6

1613

43.2

125

8.6

1672

44.8

2163

58.0

1630

43.7

150

10.3

1871

50.1

2210

59.2

1707

45.7

175

12.1

2122

56.9

200

13.8

2418

64.8

2

0.14

104

2.79

302

8.09

417

11.2

589

15.8

656

17.6

6

0.41

197

5.28

479

12.8

760

20.4

1330

35.6

1538

41.2

10

0.69

253

6.78

737

19.8

1213

32.5

2380

63.8

3554

95.2

30

2.1

516

13.8

1830

49.0

4049

109

2832

75.9

2199

58.9

45

3.1

736

19.7

2397

64.2

3961

106

2790

74.8

2279

61.1

60

4.1

881

23.6

3338

89.5

3909

105

2257

60.5

2075

55.6

80

5.5

1114

29.9

3413

91.5

2499

67.0

1947

52.2

1749

46.9

100

6.9

1363

36.5

3205

85.9

2354

63.1

1710

45.8

1566

42.0

1737

46.6

125

8.6

1588

42.6

2831

75.9

1235

33.1

1646

44.1

150

10.3

1749

46.9

2269

60.8

908

24.3

989

26.5

0.5 to 1.2 psig /
34 to 83 mbar

175

12.1

2056

55.1

200

13.8

2197

58.9

Yellow

2

0.14

108

2.89

272

7.29

393

10.5

631

16.9

739

19.8

6

0.41

181

4.85

624

16.7

904

24.2

1531

41.0

1738

46.6

10

0.69

270

7.24

869

23.3

1396

37.4

2430

65.1

3189

85.5

30

2.1

494

13.2

1901

50.9

4067

109

4962

133

3260

87.4

60

4.1

875

23.4

3318

88.9

3784

101

3392

90.9

2583

69.2

80

5.5

1064

28.5

4327

116

3328

89.2

3169

84.9

2600

69.7

100

6.9

1338

35.9

3765

101

3388

90.8

3061

82.0

2823

75.7

125

8.6

1528

41.0

3269

87.6

3298

88.4

2525

67.7

2367

63.4

150

10.3

1678

45.0

3187

85.4

2500

67.0

175

12.1

1890

50.7

200

13.8

2187

58.6

4

0.28

138

3.70

310

8.31

414

11.1

507

13.6

709

19.0

8

0.55

207

5.55

492

13.2

656

17.6

984

26.4

1208

32.4

12

0.83

253

6.78

662

17.7

864

23.2

1364

36.6

1706

45.7

30

2.1

490

13.1

1312

35.2

1864

50.0

1986

53.2

7909

212

60

4.1

808

21.7

2973

79.7

7021

188

3964

106

3821

102

80

5.5

1054

28.2

4071

109

4694

126

3713

99.5

3124

83.7

1 psi /
69 mbar

1.2 to 2.5 psig /
83 to 172 mbar
Green

1.2 psi /
83 mbar

20% Gauge

20% Gauge

100

6.9

1289

34.5

5113

137

4053

109

3738

100

3542

94.9

125

8.6

1608

43.1

4951

133

4454

119

3343

89.6

3354

89.9

150

10.3

1804

48.3

4882

131

4791

128

3318

88.9

3381

90.6

175

12.1

2036

54.6

2582

69.2

3878

104

3039

81.4

3854

103

200

13.8

2135

57.2

2367

63.4

2799

75.0

2729

73.1

4006

107

- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

13

Bulletin 74.1:T205
Table 8. Flow Capacities of Type T205 with 1 in. / DN 25 Body Size (continued)
SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

OFFSET FROM
SETPOINT

INLET
PRESSURE
psig

1.2 to 2.5 psig /
83 to 172 mbar
Green

2.5 psi /
172 mbar

2.5 psi /
0.17 bar

20% Gauge

20% Gauge

2.5 to 4.5 psig /
0.17 to 0.31 bar
Light blue

4.5 psi /
0.31 bar

4.5 psi /
0.31 bar

20% Gauge

20% Gauge

4.5 to 7 psig /
0.31 to 0.48 bar
Black

7 psi /
0.48 bar

14

20% Gauge

bar

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2
SCFH

Nm3/h

1/4 / 6.4
SCFH

Nm3/h

3/8 / 9.5
SCFH

Nm3/h

1/2 / 13
SCFH

Nm3/h

9/16 / 14
SCFH

Nm3/h

6

0.41

187

5.0

494

13.2

786

21.1

1112

29.8

1195

32.0

10

0.69

270

7.2

734

19.7

1123

30.1

1597

42.8

1792

48.0
204.2

30

2.1

523

14.0

1414

37.9

2875

77.1

5879

157.6

7620

60

4.1

897

24.0

3159

84.7

6894

184.8

5840

157

5545

149

80

5.5

1158

31.0

4195

112.4

8711

186.9

5277

141

5169

139

100

6.9

1332

35.7

5256

140.9

4766

127.7

4826

129

5152

138

125

8.6

1590

42.6

6389

171.2

4874

130.6

4545

122

4978

133

150

10.3

1856

49.7

6353

170.3

6613

177

4630

124

4373

117

175

12.1

2175

58.3

6297

168.8

6634

178

4194

112

4257

114

200

13.8

2386

63.9

6854

183.7

6117

164

4321

116

4459

120

4

0.28

108

2.89

269

7.21

334

8.95

535

14.3

550

14.7

8

0.55

200

5.36

375

10.0

581

15.6

937

25.1

1034

27.7

12

0.83

244

6.54

514

13.8

784

21.0

1260

33.8

1421

38.1

30

2.1

452

12.1

1083

29.0

1579

42.3

2256

60.5

4054

109

60

4.1

782

21.0

2046

54.8

3578

95.9

11,836

317

12,955

347

80

5.5

1040

27.9

3044

81.6

8962

240

5769

155

5846

157

100

6.9

1205

32.3

4667

125

7249

194

5219

140

5078

136

125

8.6

1428

38.3

6395

171

5114

137

4895

131

5371

144

150

10.3

1819

48.7

7511

201

7377

198

5340

143

5291

142
139

175

12.1

2127

57.0

7230

194

7205

193

5277

141

5183

200

13.8

2198

58.9

7118

191

6708

180

5094

137

4415

118

8

0.55

174

4.7

472

12.6

721

19.3

1142

30.6

1174

31.5
45.0

12

0.83

259

6.9

632

16.9

1025

27.5

1569

42.0

1678

30

2.1

507

13.6

1309

35.1

2070

55.5

3345

89.6

4494

120

60

4.1

910

24.4

2553

68.4

5189

139

11,261

302

13,488

361

80

5.5

1048

28.1

3573

95.8

8714

234

15,292

410

17,613

472

100

6.9

1329

35.6

4707

126.1

10,429

279

8158

219

8263

221
207

125

8.6

1558

41.8

6177

165.5

12,919

346

7482

201

7714

150

10.3

1854

49.7

7387

198.0

8855

237

6896

185

7902

212

175

12.1

2096

56.2

8569

229.6

86,460

2317

7401

198

7341

197

200

13.8

2380

63.8

9791

262.4

8496

228

6937

186

7374

198

9

0.62

178

4.8

383

10.3

595

15.9

874

23.4

988

26.5

12

0.83

230

6.2

498

13.3

766

20.5

1085

29.1

1242

33.3

30

2.1

433

11.6

963

25.8

1518

40.7

2234

59.9

2712

72.7

60

4.1

568

15.2

1773

47.5

3086

82.7

9206

247

11,377

305

80

5.5

835

22.4

2506

67.2

7112

190.6

14,046

376

16,558

444

100

6.9

1172

31.4

3328

89.2

10,062

269.7

10,634

285

20,116

539

125

8.6

1486

39.8

4809

128.9

12,529

335.8

8487

227

8479

227

150

10.3

1697

45.5

6744

180.7

11,766

315

8244

221

8656

232

175

12.1

2069

55.4

8494

227.6

9717

260

8031

215

8225

220

200

13.8

2182

58.5

9751

261.3

9382

251

7948

213

8603

231

9

0.62

150

4.0

412

11.0

644

17.3

896

24.0

1049

28.1

12

0.83

232

6.2

570

15.3

838

22.5

1271

34.1

1481

39.7

30

2.1

410

11.0

1274

34.1

1896

50.8

2853

76.5

3469

93.0

60

4.1

845

22.6

2231

59.8

3776

101.2

8706

233

10,971

294

80

5.5

992

26.6

3150

84.4

6662

178.5

14,248

382

16,431

440

100

6.9

1245

33.4

3789

101.5

9314

249.6

17,873

479

19,768

530

125

8.6

1590

42.6

5404

144.8

12,573

337.0

21,735

582

24,399

654

150

10.3

1910

51.2

6895

184.8

15,464

414

11,120

298

11,405

306

175

12.1

1939

52.0

8098

217.0

18,033

483

11,618

311

11,410

306

200

13.8

2394

64.2

9331

250.1

13,239

355

11,601

311

9264

248

Bulletin 74.1:T205
Table 9. Flow Capacities of Type T205M with 3/4 in. / DN 20 Body Size
SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

1 in. w.c. /
2.5 mbar

OFFSET FROM
SETPOINT

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

1 to 2.5 in. w.c. /
2.5 to 6.2 mbar
Orange

2 in. w.c. /
5.0 mbar

2.5 to 7 in. w.c. /
6.2 to 17 mbar
Red

2.5 in. w.c. /
6.2 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

INLET
PRESSURE

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2

1/4 / 6.4

3/8 / 9.5

1/2 / 13

9/16 / 14

psig

bar

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

1

0.07

76

2.04

283

7.58

462

12.4

641

17.2

723

19.4

2

0.14

116

3.11

420

11.3

730

19.6

879

23.6

1328

35.6

Nm3/h

5

0.34

201

5.39

739

19.8

1113

29.8

1899

50.9

1940

52.0

10

0.69

290

7.77

1113

29.8

1923

51.5

2535

67.9

2501

67.0

15

1.0

349

9.35

1380

37.0

2042

54.7

2736

73.3

4808

129

20

1.4

416

11.1

1652

44.3

3019

80.9

4913

132

4853

130

6541

175

30

2.1

538

14.4

2647

70.9

4078

109

40

2.8

653

17.5

3560

95.4

3238

86.8

7557

203

60

4.1

895

24.0

4083

109

80

5.5

1142

30.6

4365

117

100

6.9

1403

37.6

5344

143

125

8.6

1719

46.1

6455

173

150

10.3

2018

54.1

175

12.1

2314

62.0

200

13.8

2640

70.8

1

0.07

64

1.72

256

6.86

437

11.7

529

14.2

710

19.0

2

0.14

113

3.03

431

11.6

634

17.0

689

18.5

1036

27.8

5

0.34

198

5.31

705

18.9

1018

27.3

1452

38.9

1436

38.5

10

0.69

287

7.69

1069

28.6

1368

36.7

2073

55.6

2280

61.1

15

1.0

352

9.43

1332

35.7

1645

44.1

2501

67.0

3728

99.9

20

1.4

415

11.1

1595

42.7

2541

68.1

2858

76.6

3839

103

30

2.1

534

14.3

2038

54.6

3560

95.4

3558

95.4

40

2.8

651

17.4

2602

69.7

2888

77.4

60

4.1

894

24.0

3367

90.2

4921

132

80

5.5

1139

30.5

3291

88.2

100

6.9

1396

37.4

5027

135

125

8.6

1692

45.3

6484

174

150

10.3

2012

53.9

175

12.1

2272

60.9

200

13.8

2625

70.4

1

0.07

67

1.80

178

4.77

257

6.89

534

14.3

416

11.1

2

0.14

99

2.65

275

7.37

300

8.04

381

10.2

558

15.0

5

0.34

184

4.93

246

6.59

599

16.1

793

21.3

909

24.4

10

0.69

267

7.16

622

16.7

782

21.0

1137

30.5

1205

32.3

15

1.0

337

9.03

821

22.0

1062

28.5

1095

29.3

2216

59.4

20

1.4

287

7.69

875

23.4

1315

35.2

1576

42.2

2324

62.3

30

2.1

490

13.1

1287

34.5

1645

44.1

3249

87.1

1456

39.0

40

2.8

640

17.2

1390

37.3

1586

42.5

5020

135

60

4.1

836

22.4

1534

41.1

2705

72.5

80

5.5

1038

27.8

1840

49.3

5445

146

100

6.9

1247

33.4

2419

64.8
57.7

125

8.6

1441

38.6

2153

150

10.3

1548

41.5

6672

179

175

12.1

1571

42.1

8890

238

200

13.8

2121

56.8

- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

15

Bulletin 74.1:T205
Table 9. Flow Capacities of Type T205M with 3/4 in. / DN 20 Body Size (continued)
SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

4 in. w.c. /
10 mbar

OFFSET FROM
SETPOINT

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

2.5 to 7 in. w.c. /
6.2 to 17 mbar
Red

7 in. w.c. /
17.4 mbar

8 in. w.c. /
20 mbar

-2 to 2 in. w.c. /
-5.0 to 5.0 mbar

-2 to 2 in. w.c. /
-5.0 to 5.0 mbar

7 to 16 in. w.c. /
17 to 40 mbar
Unpainted

12 in. w.c. /
30 mbar

20% Gauge

INLET
PRESSURE

Capacities in SCFH / Nm3/h of Air
Orifice Size, In / mm
1/8 / 3.2

3/8 / 9.5

1/2 / 13

9/16 / 14

psig

bar

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

1

0.07

81

2.17

160

4.29

265

7.10

289

7.75

302

8.09

2

0.14

95

2.55

259

6.94

284

7.61

265

7.10

472

12.6

Nm3/h

5

0.34

170

4.56

190

5.09

444

11.9

674

18.1

741

19.9

10

0.69

249

6.67

521

14.0

637

17.1

976

26.2

1057

28.3

15

1.0

311

8.33

698

18.7

928

24.9

1222

32.7

1286

34.5

20

1.4

212

5.68

770

20.6

995

26.7

1183

31.7

1546

41.4

1428

38.3

30

2.1

455

12.2

1138

30.5

1424

38.2

1992

53.4

40

2.8

565

15.1

1210

32.4

1457

39.0

3542

94.9

60

4.1

748

20.0

1516

40.6

1489

39.9

80

5.5

893

23.9

1548

41.5

2124

56.9

100

6.9

1048

28.1

1613

43.2

125

8.6

1249

33.5

1609

43.1

150

10.3

1402

37.6

3764

101

175

12.1

1761

47.2

3782

101

200

13.8

2191

58.7

1

0.07

69

1.85

182

4.88

308

8.25

358

9.59

507

13.6

2

0.14

104

2.79

297

7.96

500

13.4

448

12.0

765

20.5

5

0.34

189

5.07

390

10.5

681

18.3

1091

29.2

1143

30.6

10

0.69

279

7.48

809

21.7

1091

29.2

1576

42.2

1720

46.1

15

1.0

338

9.06

1054

28.2

1462

39.2

1823

48.9

2337

62.6

20

1.4

366

9.81

1250

33.5

1806

48.4

2277

61.0

3029

81.2

3955

106

30

2.1

516

13.8

1663

44.6

2603

69.8

4708

126

40

2.8

641

17.2

2004

53.7

2562

68.7

5000

134

60

4.1

903

24.2

2514

67.4

4409

118

80

5.5

1136

30.4

2983

79.9

6144

165

100

6.9

1376

36.9

3813

102

125

8.6

1680

45.0

4612

124

150

10.3

1967

52.7

6810

183

175

12.1

2263

60.6

8191

220

200

13.8

2565

68.7

1

0.07

60

1.61

188

5.04

230

6.16

314

8.42

295

7.91

2

0.14

100

2.68

269

7.21

363

9.73

276

7.40

458

12.3

5

0.34

177

4.74

309

8.28

554

14.8

874

23.4

942

25.2

8

0.55

234

6.27

550

14.7

726

19.5

1111

29.8

1186

31.8

20

1.4

239

6.41

1002

26.9

1327

35.6

1746

46.8

1861

49.9

35

2.4

397

10.6

1402

37.6

1973

52.9

3390

90.9

2965

79.5

60

4.1

854

22.9

1974

52.9

2333

62.5

4429

119

4359

117

75

5.2

999

26.8

2381

63.8

2827

75.8

4912

132

5398

145

5169

139

100

6.9

1311

35.1

2644

70.9

5222

140

6067

163

125

8.6

1477

39.6

3586

96.1

5536

148

5335

143

150

10.3

1754

47.0

3923

105

3915

105

175

12.1

2131

57.1

6103

164

5346

143

200

13.8

2330

62.4

6821

183

5039

135

1

0.07

147

3.94

193

5.17

261

6.99

268

7.18

2

0.14

264

7.08

364

9.76

260

6.97

521

14.0

97

2.60

5

0.34

172

4.61

275

7.37

553

14.8

894

24.0

950

25.5

8

0.55

225

6.03

517

13.9

725

19.4

1117

29.9

1191

31.9

20

1.4

241

6.46

1073

28.8

1438

38.5

1793

48.1

1897

50.8

35

2.4

372

9.97

1481

39.7

1837

49.2

2301

61.7

3528

94.6

60

4.1

837

22.4

2038

54.6

2701

72.4

4702

126

5023

135

75

5.2

1028

27.6

2335

62.6

3159

84.7

5420

145

5045

135

- Black areas indicate where desired flow capacity is not obtainable for a given inlet pressure.
- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

16

1/4 / 6.4

Bulletin 74.1:T205
Table 9. Flow Capacities of Type T205M with 3/4 in. / DN 20 Body Size (continued)
SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

OFFSET FROM
SETPOINT

INLET
PRESSURE
psig

12 in. w.c. /
30 mbar

20% Gauge

7 to 16 in. w.c. /
17 to 40 mbar
Unpainted
16 in. w.c. /
40 mbar

0.58 psig /
40 mbar

20% Gauge

20% Gauge

0.5 to 1.2 psig /
34 to 83 mbar
Yellow

1 psi /
69 mbar

1.2 to 2.5 psig /
83 to 172 mbar
Green

1.2 psi /
83 mbar

20% Gauge

20% Gauge

bar

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2
SCFH

Nm3/h

1/4 / 6.4
SCFH

Nm3/h

3/8 / 9.5
SCFH

Nm3/h

1/2 / 13
SCFH

9/16 / 14

Nm3/h

SCFH

Nm3/h

5617

151

100

6.9

1307

35.0

2847

76.3

4232

113

5979

160

125

8.6

1503

40.3

3796

102

6164

165

4959

133

150

10.3

1744

46.7

4283

115

6321

169

175

12.1

2026

54.3

5920

159

7103

190

200

13.8

2312

62.0

6668

179

6028

162

1

0.07

146

3.91

199

5.33

272

7.29

325

8.71

2

0.14

271

7.26

368

9.86

377

10.1

528

14.2

96

2.57

5

0.34

175

4.69

370

9.92

622

16.7

984

26.4

1074

28.8

8

0.55

232

6.22

560

15.0

818

21.9

1265

33.9

1348

36.1

20

1.4

300

8.04

1060

28.4

1607

43.1

2180

58.4

2380

63.8

35

2.4

561

15.0

1568

42.0

2309

61.9

3057

81.9

3439

92.2

60

4.1

867

23.2

2396

64.2

3082

82.6

5909

158

3732

100

75

5.2

1040

27.9

2846

76.3

3672

98.4

7368

197

5718

153

6407

172

100

6.9

1362

36.5

3347

89.7

5824

156

7573

203

125

8.6

1563

41.9

4419

118

6766

181

7028

188

150

10.3

1778

47.7

5135

138

5567

149

175

12.1

2101

56.3

6551

176

8708

233

200

13.8

2360

63.2

7865

211

8286

222

2

0.14

103

2.76

257

6.89

325

8.71

343

9.19

2517

67.5

6

0.41

190

5.09

242

6.49

631

16.9

937

25.1

1119

30.0

10

0.69

256

6.86

650

17.4

851

22.8

1272

34.1

1462

39.2

30

2.1

328

8.79

1272

34.1

1692

45.3

2189

58.7

3097

83.0

45

3.1

611

16.4

1722

46.1

2448

65.6

3071

82.3

3940

106

60

4.1

852

22.8

1937

51.9

2610

69.9

4895

131

4721

127

80

5.5

1055

28.3

2505

67.1

4702

126

5246

141

5879

158

100

6.9

1301

34.9

2936

78.7

5186

139

6014

161

5666

152

6172

165

10.6

125

8.6

1530

41.0

3693

99.0

4440

119

6976

187

150

10.3

1821

48.8

4964

133

7252

194

6382

171

175

12.1

2088

56.0

5526

148

7147

192

200

13.8

2304

61.7

6208

166

6515

175

2

0.14

80

2.14

254

6.81

377

10.1

558

15.0

397

6

0.41

204

5.47

370

9.92

816

21.9

1187

31.8

1280

34.3

10

0.69

287

7.69

798

21.4

1051

28.2

1545

41.4

1713

45.9

30

2.1

507

13.6

1603

43.0

2272

60.9

3445

92.3

3804

102

60

4.1

871

23.3

2674

71.7

3489

93.5

6426

172

6832

183

80

5.5

1083

29.0

3267

87.6

4451

119

6951

186

7680

206

100

6.9

1361

36.5

3981

107

5293

142

8009

215

8880

238

10,421

279

125

8.6

1593

42.7

4699

126

6747

181

9750

261

150

10.3

1916

51.3

6298

169

8902

239

10,291

276

175

12.1

2136

57.2

6859

184

8570

230

200

13.8

2421

64.9

7463

200

10,523

282

4

0.28

144

3.86

292

7.83

354

9.49

558

15.0

551

14.8

8

0.55

194

5.20

455

12.2

607

16.3

855

22.9

954

25.6

12

0.83

259

6.94

583

15.6

757

20.3

1109

29.7

1237

33.2

30

2.1

230

6.16

1017

27.3

1442

38.6

1875

50.2

2061

55.2

60

4.1

734

19.7

1710

45.8

2321

62.2

3859

103

4083

109

80

5.5

916

24.5

2119

56.8

2868

76.9

4647

125

5277

141

100

6.9

1122

30.1

2546

68.2

3402

91.2

5445

146

5992

161

125

8.6

1341

35.9

3046

81.6

4301

115

6528

175

5965

160

150

10.3

1537

41.2

3584

96.1

5313

142

7493

201

6600

177

175

12.1

1731

46.4

4051

109

6014

161

7346

197

7023

188

200

13.8

2011

53.9

4539

122

5542

149

8020

215

7371

198

- Black areas indicate where desired flow capacity is not obtainable for a given inlet pressure.
- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

17

Bulletin 74.1:T205
Table 9. Flow Capacities of Type T205M with 3/4 in. / DN 20 Body Size (continued)
SPRING RANGE
AND COLOR

1.2 to 2.5 psig /
83 to 172 mbar
Green

OUTLET
PRESSURE
SETTING

2.5 psi /
172 mbar

2.5 psi /
0.17 bar

OFFSET FROM
SETPOINT

20% Gauge

20% Gauge

2.5 to 4.5 psig /
0.17 to 0.31 bar
Light blue

4.5 psi /
0.31 bar

4.5 psi /
0.31 bar

20% Gauge

20% Gauge

4.5 to 7 psig /
0.31 to 0.48 bar
Black

7 psi /
0.48 bar

18

20% Gauge

INLET
PRESSURE

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2

1/4 / 6.4

3/8 / 9.5

1/2 / 13

9/16 / 14

psig

bar

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

6

0.41

179

4.80

481

12.9

604

16.2

984

26.4

1041

27.9

10

0.69

246

6.59

718

19.2

989

26.5

1413

37.9

1421

38.1
85.7

Nm3/h

30

2.1

399

10.7

1486

39.8

2191

58.7

2859

76.6

3197

60

4.1

882

23.6

2597

69.6

3662

98.1

5117

137

5597

150

80

5.5

1102

29.5

3269

87.6

4494

120

6285

168

6838

183

100

6.9

1340

35.9

3758

101

5300

142

7863

211

9172

246

125

8.6

1611

43.2

4687

126

6442

173

9048

242

10,720

287

150

10.3

1854

49.7

5383

144

7725

207

11,557

310

11,479

308

175

12.1

2175

58.3

6267

168

9827

263

12,419

333

12,612

338

200

13.8

2499

67.0

6876

184

10,250

275

13,775

369

12,236

328

4

0.28

106

2.84

266

7.13

318

8.52

366

9.81

438

11.7

8

0.55

170

4.56

198

5.31

562

15.1

810

21.7

860

23.0

12

0.83

232

6.22

548

14.7

651

17.4

1050

28.1

1213

32.5
56.8

30

2.1

240

6.43

1023

27.4

1397

37.4

1940

52.0

2121

60

4.1

738

19.8

1691

45.3

2424

65.0

3337

89.4

4945

133

80

5.5

940

25.2

2132

57.1

2994

80.2

4246

114

5009

134

100

6.9

1133

30.4

2549

68.3

3422

91.7

5956

160

6061

162

125

8.6

1377

36.9

3057

81.9

4185

112

6570

176

7354

197

150

10.3

1639

43.9

3641

97.6

5498

147

7866

211

8703

233

175

12.1

1857

49.8

4043

108

5503

147

8509

228

8230

221

200

13.8

2109

56.5

4579

123

6288

169

8974

241

9551

256

8

0.55

194

5.20

500

13.4

658

17.6

959

25.7

1064

28.5

12

0.83

258

6.91

600

16.1

974

26.1

1315

35.2

1497

40.1

30

2.1

369

9.89

1363

36.5

1916

51.3

2686

72.0

2862

76.7

60

4.1

899

24.1

2296

61.5

3254

87.2

4719

126

5680

152

80

5.5

1095

29.3

2942

78.8

4153

111

6219

167

7130

191

100

6.9

1301

34.9

3482

93.3

5253

141

7686

206

3659

98.1

125

8.6

1571

42.1

4272

114

6156

165

9286

249

10,573

283

150

10.3

1843

49.4

5102

137

8001

214

10,993

295

10,700

287

175

12.1

2097

56.2

5709

153

8504

228

12,480

334

11,930

320

200

13.8

2341

62.7

6371

171

10,001

268

13,286

356

12,709

341

9

0.62

181

4.85

253

6.78

765

20.5

816

21.9

828

22.2

12

0.83

218

5.84

500

13.4

1027

27.5

1017

27.3

1459

39.1

30

2.1

201

5.39

961

25.8

2022

54.2

2046

54.8

2070

55.5
85.5

60

4.1

706

18.9

1715

46.0

3400

91.1

3486

93.4

3191

80

5.5

919

24.6

2142

57.4

4274

115

4056

109

3865

104

100

6.9

1132

30.3

2517

67.5

5108

137

4835

130

4965

133

125

8.6

1372

36.8

3001

80.4

6367

171

6258

168

6777

182

150

10.3

1607

43.1

3576

95.8

5503

147

6821

183

7785

209

175

12.1

1845

49.4

3970

106

6034

162

7338

197

9084

243

200

13.8

2034

54.5

4813

129

6852

184

9275

249

9521

255

9

0.62

167

4.48

433

11.6

812

21.8

902

24.2

909

24.4

12

0.83

231

6.19

445

11.9

1021

27.4

987

26.5

1311

35.1
73.0

30

2.1

290

7.77

1216

32.6

2427

65.0

2358

63.2

2723

60

4.1

820

22.0

2138

57.3

4140

111

4442

119

5639

151

80

5.5

1022

27.4

2681

71.9

5239

140

5636

151

6119

164

100

6.9

1229

32.9

3259

87.3

6239

167

7095

190

7697

206

125

8.6

1564

41.9

3884

104

7509

201

8007

215

8976

241

150

10.3

1825

48.9

4572

123

6608

177

9391

252

10,626

285

175

12.1

2069

55.4

5029

135

8297

222

11,126

298

11,850

318

200

13.8

2401

64.3

5686

152

9206

247

12,386

332

13,032

349

Bulletin 74.1:T205
Table 10. Flow Capacities of Type T205M with 1 in. / DN 25 Body Size
SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

OFFSET FROM
SETPOINT

INLET
PRESSURE
psig

1 in. w.c. /
2.5 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

1 to 2.5 in. w.c. /
2.5 to 6.2 mbar
Orange

2 in. w.c. /
5.0 mbar

2.5 to 7 in. w.c. /
6.2 to 17 mbar
Red

2.5 in. w.c. /
6.2 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

bar

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2
SCFH

Nm3/h

1/4 / 6.4
SCFH

Nm3/h

3/8 / 9.5
SCFH

Nm3/h

1/2 / 13
SCFH

Nm3/h

9/16 / 14
SCFH

Nm3/h

1

0.07

94

2.52

342

9.17

602

16.1

890

23.9

929

24.9

2

0.14

132

3.54

506

13.6

759

20.3

1345

36.0

1422

38.1

5

0.34

208

5.57

768

20.6

1293

34.7

2143

57.4

2377

63.7

10

0.69

310

8.31

1077

28.9

1968

52.7

3194

85.6

3679

98.6

15

1.0

358

9.59

1350

36.2

2470

66.2

4107

110

4936

132

20

1.4

423

11.3

1552

41.6

2949

79.0

5214

140

3462

92.8

6933

186

30

2.1

539

14.4

2022

54.2

4017

108

40

2.8

677

18.1

2483

66.5

5111

137

91.5

60

4.1

878

23.5

3414

80

5.5

1097

29.4

4355

117

100

6.9

1236

33.1

5332

143

125

8.6

1549

41.5

150

10.3

1696

45.5

175

12.1

1988

53.3

200

13.8

2219

59.5

1

0.07

81

2.17

325

8.71

507

13.6

828

22.2

952

25.5

2

0.14

125

3.35

479

12.8

682

18.3

1112

29.8

1348

36.1

5

0.34

204

5.47

740

19.8

1150

30.8

1996

53.5

2310

61.9

10

0.69

291

7.80

1067

28.6

1699

45.5

2778

74.5

3604

96.6

15

1.0

361

9.67

1279

34.3

1883

50.5

2553

68.4

3218

86.2

20

1.4

428

11.5

1504

40.3

2243

60.1

4510

121

3381

90.6

5646

151

30

2.1

545

14.6

2004

53.7

2846

76.3

40

2.8

662

17.7

2452

65.7

4050

109

89.7

60

4.1

882

23.6

3347

80

5.5

1067

28.6

4122

110

100

6.9

1217

32.6

5192

139

125

8.6

1528

41.0

150

10.3

1708

45.8

175

12.1

1957

52.4

200

13.8

2184

58.5

1

0.07

91

2.44

256

6.86

268

7.18

424

11.4

383

10.3

2

0.14

126

3.38

297

7.96

408

10.9

694

18.6

640

17.2

5

0.34

184

4.93

404

10.8

664

17.8

1084

29.1

1266

33.9

10

0.69

282

7.56

782

21.0

959

25.7

1346

36.1

1426

38.2

1210

32.4

15

1.0

341

9.14

938

25.1

1081

29.0

1886

50.5

20

1.4

379

10.2

980

26.3

1232

33.0

2390

64.1

30

2.1

524

14.0

1462

39.2

1747

46.8

2492

66.8

40

2.8

650

17.4

1353

36.3

1582

42.4

2577

69.1

60

4.1

772

20.7

1840

49.3

2599

69.7

9044

242

80

5.5

897

24.0

2339

62.7

100

6.9

1166

31.2

2026

54.3

125

8.6

1439

38.6

5872

157

150

10.3

1628

43.6

7363

197

175

12.1

1776

47.6

200

13.8

2210

59.2

- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

19

Bulletin 74.1:T205
Table 10. Flow Capacities of Type T205M with 1 in. / DN 25 Body Size (continued)
SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

4 in. w.c. /
10 mbar

OFFSET FROM
SETPOINT

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

2.5 to 7 in. w.c. /
6.2 to 17 mbar
Red

7 in. w.c. /
17.4 mbar

8 in. w.c. /
20 mbar

-2 to 2 in. w.c. /
-5.0 to 5.0 mbar

-2 to 2 in. w.c. /
-5.0 to 5.0 mbar

7 to 16 in. w.c. /
17 to 40 mbar
Unpainted

12 in. w.c. /
30 mbar

20% Gauge

INLET
PRESSURE

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2

3/8 / 9.5

1/2 / 13

9/16 / 14

psig

bar

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

Nm3/h

SCFH

1

0.07

77

2.06

221

5.92

264

7.08

321

8.60

347

9.30

2

0.14

117

3.14

266

7.13

277

7.42

433

11.6

593

15.9

Nm3/h

5

0.34

184

4.93

298

7.99

533

14.3

776

20.8

916

24.5

10

0.69

266

7.13

661

17.7

726

19.5

1098

29.4

1232

33.0

1281

34.3

15

1.0

313

8.39

696

18.7

875

23.4

1205

32.3

20

1.4

318

8.52

885

23.7

1136

30.4

1650

44.2

30

2.1

447

12.0

918

24.6

1319

35.3

2009

53.8

40

2.8

589

15.8

1244

33.3

1439

38.6

1276

34.2

60

4.1

734

19.7

1458

39.1

1434

38.4

80

5.5

919

24.6

2242

60.1

1718

46.0

100

6.9

1090

29.2

1592

42.7

125

8.6

1339

35.9

3434

92.0

3413

91.5

150

10.3

1419

38.0

175

12.1

1796

48.1

200

13.8

2001

53.6

1

0.07

83

2.22

284

7.61

410

11.0

607

16.3

596

16.0

2

0.14

139

3.73

324

8.68

604

16.2

740

19.8

926

24.8

5

0.34

191

5.12

578

15.5

895

24.0

1362

36.5

1521

40.8

10

0.69

272

7.29

857

23.0

1369

36.7

1996

53.5

2490

66.7

1863

49.9

15

1.0

325

8.71

1037

27.8

1653

44.3

2467

66.1

20

1.4

407

10.9

1277

34.2

1901

50.9

2916

78.1

30

2.1

562

15.1

1579

42.3

2310

61.9

3372

90.4

40

2.8

685

18.4

1871

50.1

2701

72.4

4074

109

60

4.1

782

21.0

2672

71.6

4681

125

6235

167

80

5.5

888

23.8

2950

79.1

100

6.9

1162

31.1

2649

71.0

125

8.6

1435

38.5

5770

155

150

10.3

1718

46.0

6567

176

175

12.1

1909

51.2

200

13.8

2218

59.4

1

0.07

77

2.06

198

5.31

295

7.91

385

10.3

444

11.9

2

0.14

124

3.32

285

7.64

361

9.67

403

10.8

699

18.7

5

0.34

191

5.12

413

11.1

702

18.8

947

25.4

1100

29.5

8

0.55

244

6.54

609

16.3

917

24.6

1368

36.7

1453

38.9

20

1.4

369

9.89

992

26.6

1545

41.4

2163

58.0

2157

57.8

35

2.4

573

15.4

1613

43.2

2115

56.7

2988

80.1

2895

77.6

60

4.1

873

23.4

1979

53.0

2369

63.5

3249

87.1

3741

100

75

5.2

991

26.6

2474

66.3

3225

86.4

3456

92.6

5058

136

2851

76.4

100

6.9

1123

30.1

2572

68.9

3761

101

4879

131

125

8.6

1419

38.0

4713

126

5937

159

5293

142

5794

155

6001

161

150

10.3

1681

45.1

175

12.1

2078

55.7

200

13.8

2208

59.2

1

0.07

66

1.77

174

4.66

283

7.58

395

10.6

462

12.4

2

0.14

115

3.08

256

6.86

411

11.0

466

12.5

692

18.5

5

0.34

182

4.88

400

10.7

720

19.3

926

24.8

1108

29.7

8

0.55

254

6.81

526

14.1

944

25.3

1297

34.8

1473

39.5

20

1.4

343

9.19

1026

27.5

1498

40.1

2439

65.4

2208

59.2

35

2.4

576

15.4

1422

38.1

2172

58.2

2679

71.8

3614

96.9

60

4.1

836

22.4

2142

57.4

2578

69.1

3610

96.7

4418

118

75

5.2

1009

27.0

2595

69.5

3369

90.3

4373

117

4086

110

- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

20

1/4 / 6.4

Bulletin 74.1:T205
Table 10. Flow Capacities of Type T205M with 1 in. / DN 25 Body Size (continued)
SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

OFFSET FROM
SETPOINT

INLET
PRESSURE
psig

12 in. w.c. /
30 mbar

20% Gauge

7 to 16 in. w.c. /
17 to 40 mbar
Unpainted
16 in. w.c. /
40 mbar

0.58 psig /
40 mbar

20% Gauge

20% Gauge

0.5 to 1.2 psig /
34 to 83 mbar
Yellow

1 psi /
69 mbar

1.2 to 2.5 psig /
83 to 172 mbar
Green

1.2 psi /
83 mbar

20% Gauge

20% Gauge

bar

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2
SCFH

Nm3/h

1/4 / 6.4
SCFH

Nm3/h

3/8 / 9.5
SCFH

Nm3/h

1/2 / 13
SCFH

9/16 / 14

Nm3/h

SCFH

Nm3/h

4909

132

100

6.9

1125

30.2

2452

65.7

3572

95.7

5630

151

125

8.6

1442

38.6

4534

122

6653

178

4721

127

5560

149

6769

181

150

10.3

1787

47.9

175

12.1

2075

55.6

200

13.8

2251

60.3

1

0.07

75

2.01

175

4.69

273

7.32

392

10.5

496

13.3

2

0.14

112

3.00

280

7.50

428

11.5

455

12.2

730

19.6

5

0.34

191

5.12

433

11.6

831

22.3

1096

29.4

1248

33.4

8

0.55

254

6.81

605

16.2

1093

29.3

1400

37.5

1682

45.1

20

1.4

375

10.0

1198

32.1

1834

49.2

2856

76.5

2740

73.4

35

2.4

569

15.2

1627

43.6

2648

71.0

3178

85.2

3551

95.2

60

4.1

861

23.1

2338

62.7

3593

96.3

4725

127

5559

149

75

5.2

1001

26.8

2934

78.6

4225

113

4777

128

7172

192

4661

125

100

6.9

1123

30.1

3187

85.4

5772

155

5722

153

125

8.6

1463

39.2

5002

134

6948

186

4768

128

6426

172

7714

207

150

10.3

1817

48.7

175

12.1

2061

55.2

200

13.8

2203

59.0

2

0.14

115

3.08

297

7.96

435

11.7

541

14.5

545

14.6

6

0.41

205

5.49

367

9.84

716

19.2

994

26.6

1181

31.7

10

0.69

284

7.61

661

17.7

988

26.5

1294

34.7

1568

42.0

30

2.1

460

12.3

1293

34.7

1802

48.3

2527

67.7

2812

75.4
83.3

45

3.1

680

18.2

1772

47.5

2248

60.2

3529

94.6

3109

60

4.1

798

21.4

2070

55.5

2744

73.5

5128

137

4047

108

80

5.5

1101

29.5

2511

67.3

3605

96.6

5625

151

4918

132

100

6.9

1315

35.2

3048

81.7

5006

134

5459

146

5512

148

125

8.6

1552

41.6

4531

121

6034

162

5451

146

6951

186

5057

136

7109

191

7307

196

150

10.3

1697

45.5

175

12.1

1890

50.7

200

13.8

2085

55.9

2

0.14

100

2.68

293

7.85

525

14.1

648

17.4

596

16.0

6

0.41

208

5.57

558

15.0

934

25.0

1302

34.9

1507

40.4

10

0.69

277

7.42

765

20.5

1371

36.7

1775

47.6

1971

52.8

30

2.1

507

13.6

1721

46.1

2604

69.8

3287

88.1

3301

88.5

60

4.1

870

23.3

2727

73.1

4256

114

5175

139

3674

98.5

80

5.5

1095

29.3

3245

87.0

4918

132

6393

171

4299

115

100

6.9

1026

27.5

4586

123

7935

213

9443

253

7744

208

10,977

294

125

8.6

1332

35.7

5177

139

8135

218

9261

248

150

10.3

1626

43.6

6099

163

9407

252

10,410

279

175

12.1

1911

51.2

200

13.8

2221

59.5

4

0.28

136

3.64

349

9.35

348

9.33

585

15.7

634

17.0

8

0.55

204

5.47

385

10.3

592

15.9

859

23.0

1012

27.1

12

0.83

267

7.16

579

15.5

798

21.4

1120

30.0

1275

34.2

30

2.1

405

10.9

1072

28.7

1387

37.2

1860

49.8

2139

57.3
50.8

60

4.1

731

19.6

1732

46.4

2258

60.5

3141

84.2

1895

80

5.5

943

25.3

1967

52.7

2893

77.5

4481

120

4426

119

100

6.9

1139

30.5

2544

68.2

3170

85.0

4876

131

5197

139

125

8.6

1255

33.6

2900

77.7

3722

99.7

5556

149

5846

157

150

10.3

1590

42.6

3539

94.8

6305

169

7062

189

4813

129

175

12.1

1693

45.4

3845

103

6578

176

7683

206

6432

172

200

13.8

1846

49.5

4449

119

6213

167

7189

193

4890

131

- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

21

Bulletin 74.1:T205
Table 10. Flow Capacities of Type T205M with 1 in. / DN 25 Body Size (continued)
SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

OFFSET FROM
SETPOINT

INLET
PRESSURE
psig

1.2 to 2.5 psig /
83 to 172 mbar
Green

2.5 psi /
172 mbar

2.5 psi /
0.17 bar

20% Gauge

20% Gauge

2.5 to 4.5 psig /
0.17 to 0.31 bar
Light blue

4.5 psi /
0.31 bar

4.5 psi /
0.31 bar

20% Gauge

20% Gauge

4.5 to 7 psig /
0.31 to 0.48 bar
Black

7 psi /
0.48 bar

22

20% Gauge

bar

Capacities in SCFH / Nm3/h of Air
Orifice Size, In. / mm
1/8 / 3.2
SCFH

Nm3/h

1/4 / 6.4
SCFH

Nm3/h

3/8 / 9.5
SCFH

Nm3/h

1/2 / 13
SCFH

Nm3/h

9/16 / 14
SCFH

Nm3/h

6

0.41

191

5.12

521

14.0

765

20.5

1005

26.9

1167

31.3

10

0.69

236

6.32

617

16.5

1104

29.6

1439

38.6

1750

46.9
95.3

30

2.1

498

13.3

1382

37.0

2263

60.6

2783

74.6

3555

60

4.1

837

22.4

2500

67.0

3273

87.7

5680

152

5186

139

80

5.5

1074

28.8

2879

77.2

4586

123

7109

191

7606

204

100

6.9

1291

34.6

3687

98.8

4967

133

8371

224

8584

230

125

8.6

1565

41.9

4270

114

6512

175

10,046

269

10,446

280

150

10.3

1904

51.0

5380

144

8462

227

10,021

269

11,642

312

175

12.1

2019

54.1

5841

157

9454

253

12,684

340

13,557

363

200

13.8

2232

59.8

6593

177

11,421

306

13,394

359

12,786

343

4

0.28

115

3.08

273

7.32

345

9.25

494

13.2

510

13.7

8

0.55

206

5.52

295

7.91

584

15.7

825

22.1

972

26.0

12

0.83

249

6.67

521

14.0

743

19.9

1074

28.8

1183

31.7

30

2.1

374

10.0

1030

27.6

1393

37.3

1936

51.9

2156

57.8

60

4.1

776

20.8

1581

42.4

2262

60.6

2710

72.6

3174

85.1

80

5.5

1018

27.3

2141

57.4

2933

78.6

3652

97.9

3995

107

100

6.9

1129

30.3

2615

70.1

3156

84.6

4379

117

5528

148

125

8.6

1351

36.2

3143

84.2

4001

107

5686

152

5083

136

150

10.3

1634

43.8

3778

101

5735

154

5956

160

7722

207

175

12.1

1899

50.9

4050

109

6031

162

7622

204

9369

251

200

13.8

1997

53.5

4421

118

7327

196

9291

249

9609

258

8

0.55

206

5.52

415

11.1

708

19.0

1012

27.1

1070

28.7

12

0.83

276

7.40

534

14.3

993

26.6

1369

36.7

1425

38.2
80.3

30

2.1

512

13.7

1334

35.8

2008

53.8

2720

72.9

2998

60

4.1

875

23.4

2261

60.6

3573

95.8

4304

115

4989

134

80

5.5

1127

30.2

2826

75.7

4302

115

5804

156

6241

167

100

6.9

1287

34.5

3504

93.9

5338

143

7023

188

8371

224

125

8.6

1662

44.5

4177

112

6565

176

8183

219

9844

264

150

10.3

1741

46.7

4888

131

7755

208

10,151

272

11,535

309

175

12.1

1981

53.1

5486

147

9965

267

11,236

301

11,864

318

200

13.8

2277

61.0

6487

174

10,233

274

12,388

332

14,093

378

9

0.62

192

5.15

251

6.73

600

16.1

772

20.7

823

22.1

12

0.83

240

6.43

423

11.3

743

19.9

1039

27.8

1131

30.3

30

2.1

441

11.8

1023

27.4

1404

37.6

1925

51.6

2185

58.6
90.9

60

4.1

802

21.5

1708

45.8

2400

64.3

3265

87.5

3392

80

5.5

977

26.2

2094

56.1

3023

81.0

3832

103

4177

112

100

6.9

1095

29.3

2603

69.8

3390

90.9

5180

139

4967

133

125

8.6

1336

35.8

3247

87.0

3852

103

5686

152

6346

170

150

10.3

1479

39.6

3771

101

5719

153

7056

189

7172

192

175

12.1

1729

46.3

4222

113

6197

166

7609

204

8573

230

200

13.8

2036

54.6

4518

121

6915

185

8098

217

8150

218

9

0.62

184

4.93

455

12.2

575

15.4

900

24.1

936

25.1

12

0.83

244

6.54

424

11.4

712

19.1

1208

32.4

1328

35.6
74.3

30

2.1

414

11.1

1269

34.0

1800

48.2

2647

70.9

2772

60

4.1

747

20.0

2075

55.6

2916

78.1

4721

127

5075

136

80

5.5

1005

26.9

2772

74.3

3965

106

5636

151

5824

156

100

6.9

1308

35.1

3383

90.7

4053

109

6244

167

6849

184

125

8.6

1593

42.7

3952

106

5454

146

7249

194

8606

231

150

10.3

1665

44.6

4565

122

7208

193

9515

255

11,109

298

175

12.1

1925

51.6

5309

142

8473

227

10,620

285

11,872

318

200

13.8

2257

60.5

5791

155

9592

257

11,706

314

12,938

347

Bulletin 74.1:T205
Table 11. Cv Coefficient of T205 Series with 3/4 in. / DN 20 Body Size

SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

1 in. w.c. /
2.5 mbar

OFFSET FROM
SETPOINT

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

1 to 2.5 in. w.c. /
2.5 to 6.2 mbar
Orange

2 in. w.c. /
5.0 mbar

2.5 in. w.c. /
6.2 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

2.5 to 7 in. w.c. /
6.2 to 17 mbar
Red

4 in. w.c. /
10 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

INLET
PRESSURE

psig

bar

1
2
5
10
15
20
30
40
60
80
100
125
150
175
200
1
2
5
10
15
20
30
40
60
80
100
125
150
175
200
1
2
5
10
15
20
30
40
60
80
100
125
150
175
200
1
2
5
10
15
20
30
40
60
80
100
125
150
175
200

0.07
0.14
0.34
0.69
1.0
1.4
2.1
2.8
4.1
5.5
6.9
8.6
10.3
12.1
13.8
0.07
0.14
0.34
0.69
1.0
1.4
2.1
2.8
4.1
5.5
6.9
8.6
10.3
12.1
13.8
0.07
0.14
0.34
0.69
1.0
1.4
2.1
2.8
4.1
5.5
6.9
8.6
10.3
12.1
13.8
0.07
0.14
0.34
0.69
1.0
1.4
2.1
2.8
4.1
5.5
6.9
8.6
10.3
12.1
13.8

Cv COEFFICIENT
Orifice Size, In. / mm
1/8 / 3.2

1/4 / 6.4

3/8 / 9.5

1/2 / 13

9/16 / 14

TYPE
T205

T205M

T205

T205M

T205

T205M

T205

T205M

T205

T205M

0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.2
0.3
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.2
0.3
0.3
0.3
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.3
0.4
0.3
0.3
0.3
0.3
0.2

0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.4
0.4
0.4
0.3
0.3
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.3
0.3
0.3
0.3
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3

1.0
1.2
1.2
1.1
1.1
1.1
1.0
1.0
0.8
0.5
0.4
0.4

1.3
1.3
1.5
1.5
1.5
1.5
1.8
2.0
1.7
1.4
1.4
1.4

1.4
1.9
1.5
1.3
1.3
1.2
1.1
0.7
0.5

2.1
2.3
2.2
2.6
2.1
2.7
2.7
1.8
3.0

2.6
2.1
1.9
1.8
1.6
1.5
1.0

2.9
2.8
3.7
3.4
2.9
4.4
4.4

2.5
2.4
2.0
1.8
1.2
1.1

3.2
4.2
3.8
3.4
5.1
4.4

1.0
1.1
1.1
1.1
1.0
1.0
1.0
0.9
0.8
0.4
0.4
0.3

1.2
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.1
1.3
1.4

1.3
1.8
1.4
1.2
1.2
1.2
1.0
0.7
0.9

2.0
2.0
2.0
1.8
1.7
2.2
2.4
1.6
1.9

2.0
1.9
1.7
1.7
1.6
1.1
0.8

2.4
2.2
2.9
2.8
2.7
2.5
2.4

2.1
2.2
1.9
1.7
1.2
0.9

3.2
3.3
2.8
3.1
4.0
3.4

0.6
0.6
0.6
0.7
0.7
0.7
1.2
0.7
0.7
0.5
0.7
0.3
0.3
0.3

0.8
0.9
0.5
0.8
0.9
0.8
0.9
0.8
0.6
0.6
0.6
0.5
1.2
1.4

1.1
1.4
1.0
1.0
1.0
1.1
0.9
0.8
0.9
0.4

1.2
1.0
1.2
1.0
1.1
1.2
1.1
0.9
1.1
1.7

1.5
1.6
1.4
1.4
1.4
1.4
0.7
0.5

2.5
1.2
1.6
1.5
1.2
1.4
2.2
2.8

1.5
1.5
1.5
1.5
1.2
1.0
0.8

1.9
1.8
1.8
1.6
2.4
2.1
1.0

0.5
0.6
0.7
0.7
0.7
0.8
1.1
0.8
0.7
0.6
0.7
0.4
0.3
0.3
0.2

0.8
0.8
0.4
0.7
0.7
0.7
0.8
0.7
0.6
0.5
0.4
0.4
0.7
0.6
0.7

0.8
1.2
1.0
0.9
1.0
1.0
0.9
0.8
0.6
0.4
0.5
0.6

1.3
0.9
0.9
0.9
1.0
0.9
1.0
0.8
0.6
0.7
0.9
0.7

1.3
1.4
1.2
1.3
1.3
1.3
1.2
0.9
0.4
0.3
0.2

1.4
0.9
1.3
1.3
1.3
1.1
1.4
2.0
1.5
1.8

1.3
1.4
1.4
1.6
1.0
0.9
0.7
0.6

1.4
1.5
1.5
1.4
1.4
1.4
1.0
1.3
1.1

- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

23

Bulletin 74.1:T205
Table 11. Cv Coefficient of T205 Series with 3/4 in. / DN 20 Body Size (continued)

SPRING RANGE
AND COLOR

2.5 to 7 in. w.c. /
6.2 to 17 mbar
Red

OUTLET
PRESSURE
SETTING

7 in. w.c. /
17 mbar

8 in. w.c. /
20 mbar

7 to 16 in. w.c. /
17 to 40 mbar
Unpainted

12 in. w.c. /
30 mbar

16 in. w.c. /
40 mbar

OFFSET FROM
SETPOINT

-2 to 2 in. w.c. /
-5.0 to 5.0 mbar

-2 to 2 in. w.c. /
-5.0 to 5.0 mbar

20% Gauge

20% Gauge

INLET
PRESSURE

psig

bar

1
2
5
10
15
20
30
40
60
80
100
125
150
175
200
1
2
5
8
20
35
60
75
100
125
150
175
200
1
2
5
8
20
35
60
75
100
125
150
175
200
1
2
5
8
20
35
60
75
100
125
150
175
200

0.07
0.14
0.34
0.69
1.0
1.4
2.1
2.8
4.1
5.5
6.9
8.6
10.3
12.1
13.8
0.07
0.14
0.34
0.55
1.4
2.4
4.1
5.2
6.9
8.6
10.3
12.1
13.8
0.07
0.14
0.34
0.55
1.4
2.4
4.1
5.2
6.9
8.6
10.3
12.1
13.8
0.07
0.14
0.34
0.55
1.4
2.4
4.1
5.2
6.9
8.6
10.3
12.1
13.8

Cv COEFFICIENT
Orifice Size, In. / mm
1/8 / 3.2

3/8 / 9.5

1/2 / 13

9/16 / 14

TYPE
T205

T205M

T205

T205M

T205

T205M

T205

T205M

T205

T205M

0.4
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.2
0.3
0.3
0.3
0.3
0.3
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.5
0.3
0.3
0.3
0.3
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.4

0.3
0.3
0.4
0.4
0.4
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.4
0.4
0.2
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3

0.7
0.9
1.0
1.0
1.0
0.9
1.1
0.9
0.8
0.9
0.7
0.4
0.3
0.3

0.9
1.0
0.8
1.1
1.1
1.1
1.1
1.1
1.0
1.0
1.0
1.0
1.3
1.3

1.3
1.6
1.3
1.3
1.2
1.2
1.0
1.1
0.9
0.8

1.6
1.7
1.3
1.5
1.5
1.6
1.7
1.4
1.7
1.9

1.7
2.0
1.8
1.8
1.7
1.4
1.4
1.0

1.8
1.5
2.2
2.1
1.9
2.0
3.2
2.8

1.7
1.9
1.9
1.9
1.5
1.3
1.0

2.6
2.5
2.3
2.3
2.5
2.7
2.7

1.2
1.2
1.1
1.1
1.2
1.2
0.9
0.9
0.7
1.2
0.7
0.8
0.7
1.1
1.3
1.1
1.1
1.3
1.1
1.1
1.0
1.1
1.3
1.1
1.1
0.8
1.3
1.3
1.3
1.3
1.4
1.4
1.2
1.2
1.5
1.4
1.0
1.4
1.2

1.6
1.7
1.7
1.7
1.4
1.0
1.3
1.2
0.8

1.5
1.5
1.9
1.8
1.7
1.8
1.8
1.8
1.4

1.4
1.4
1.6
1.6
1.5
1.1
1.0
0.9
0.6
0.5

1.5
0.9
1.8
1.7
1.6
1.4
1.9
1.8
1.6
1.1

1.3
1.6
1.7
1.8
1.4
1.6
1.4
1.2
0.7

1.5
1.8
1.9
1.9
1.7
2.2
2.1
1.7
1.5

0.3
0.4
0.4
0.3
0.3
0.4
0.4
0.4
0.3
0.3
0.3
0.3

1.0
1.2
1.1
1.1
1.1
0.9
0.9
0.7
0.5
0.6
0.3
0.2
0.2
1.2
1.2
1.2
1.1
1.1
0.9
0.9
0.7
0.5
0.7
0.3
0.2
0.2
1.3
1.4
1.3
1.2
1.2
1.0
0.9
0.7
0.6
0.7
0.6
0.5
0.5

1.6
0.9
1.7
1.7
1.6
2.1
1.8
1.7
1.6
1.2

0.3
0.4
0.3
0.3
0.4
0.3
0.4
0.3
0.4
0.3
0.3
0.4

1.0
0.9
0.6
0.8
0.9
0.9
0.8
0.8
0.7
0.8
0.7
1.0
1.0
0.8
0.9
0.6
0.8
1.0
0.9
0.8
0.8
0.8
0.8
0.8
1.0
1.0
1.0
1.0
0.8
0.9
1.0
1.0
1.0
1.0
0.9
1.0
1.0
1.1
1.1

1.2
1.6
1.7
1.6
1.5
0.9
1.1
0.9
0.6
0.5

0.3
0.3
0.3
0.2
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3

0.8
0.7
0.9
0.8
0.9
0.9
0.7
0.7
0.7
0.4
0.3
0.3
0.3
0.6
0.8
0.9
0.9
0.9
0.9
0.7
0.7
0.7
0.4
0.4
0.3
0.3
0.7
0.8
1.0
0.9
0.9
1.0
0.8
0.9
0.7
0.6
0.4
0.3
0.4

1.5
1.7
1.9
1.8
1.5
1.1
1.2
0.9
0.7
0.6

1.8
1.4
2.0
2.0
1.9
1.9
2.4
2.5
2.0
1.5

1.6
1.9
1.9
1.9
1.6
1.7
1.4
1.2
0.8

2.2
1.9
2.2
2.1
2.1
2.1
1.5
1.9
1.7

- Black areas indicate where desired flow capacity is not obtainable for a given inlet pressure.
- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

24

1/4 / 6.4

Bulletin 74.1:T205
Table 11. Cv Coefficient of T205 Series with 3/4 in. / DN 20 Body Size (continued)

SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

0.58 psig /
40 mbar

OFFSET FROM
SETPOINT

20% Gauge

0.5 to 1.2 psig /
34 to 83 mbar
Yellow

1 psi /
69 mbar

20% Gauge

1.2 psi /
83 mbar

20% Gauge

2.5 psi /
0.17 bar

20% Gauge

2.5 psi /
0.17 bar

20% Gauge

4.5 psi /
0.31 bar

20% Gauge

1.2 to 2.5 psig /
83 to 172 mbar
Green

2.5 to 4.5 psig /
0.17 to 0.31 bar
Light blue

INLET
PRESSURE
psig

bar

2
6
10
30
45
60
80
100
125
150
175
200
2
6
10
30
60
80
100
125
150
175
200
4
8
12
30
60
80
100
125
150
175
200
6
10
30
60
80
100
125
150
175
200
4
8
12
30
60
80
100
125
150
175
200
8
12
30
60
80
100
125
150
175
200

0.14
0.41
0.69
2.1
3.1
4.1
5.5
6.9
8.6
10.3
12.1
13.8
0.14
0.41
0.69
2.1
4.1
5.5
6.9
8.6
10.3
12.1
13.8
0.28
0.55
0.83
2.1
4.1
5.5
6.9
8.6
10.3
12.1
13.8
0.41
0.69
2.1
4.1
5.5
6.9
8.6
10.3
12.1
13.8
0.28
0.55
0.83
2.1
4.1
5.5
6.9
8.6
10.3
12.1
13.8
0.55
0.83
2.1
4.1
5.5
6.9
8.6
10.3
12.1
13.8

Cv COEFFICIENT
Orifice Size, In. / mm
1/8 / 3.2

1/4 / 6.4

3/8 / 9.5

1/2 / 13

9/16 / 14

TYPE
T205

T205M

T205

T205M

T205

T205M

T205

T205M

T205

T205M

0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.5
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.3
0.4
0.3
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.4
0.4
0.3
0.3

0.4
0.3
0.4
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.3
0.4
0.3
0.4
0.3
0.4
0.3
0.3
0.4
0.3
0.3
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.3
0.4
0.4
0.4
0.4
0.3
0.3
0.4
0.4
0.3
0.3
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.3
0.4
0.3
0.3
0.3
0.3
0.3
0.3

0.8
0.8
0.9
0.9
1.0
0.8
0.9
0.7
0.4
0.4
0.3
0.3
1.1
1.0
1.1
1.0
0.9
0.9
0.8
0.5
0.6
0.6
0.4
0.7
0.7
0.7
0.7
0.7
0.6
0.7
0.7
0.6
0.7
0.6
1.0
1.0
1.0
0.9
1.0
0.9
0.8
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.6
0.6
0.9
0.9
0.9
0.9
0.9
0.9
0.8
0.8
0.7
0.7

0.9
0.4
0.9
0.9
0.9
0.8
0.8
0.8
0.8
0.9
0.9
0.9
1.1
0.7
1.1
1.1
1.1
1.1
1.1
1.0
1.2
1.1
1.1
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
1.0
1.1
1.0
1.1
1.1
1.0
1.0
1.0
1.0
1.0
0.9
0.3
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
1.0
0.8
0.9
0.9
0.9
0.9
0.9
0.9
0.9
0.9

1.3
1.1
1.2
1.1
0.8
1.0
0.7
0.6
0.6
0.5
0.5
0.4
1.7
1.4
1.4
1.2
1.0
0.7
0.6
0.7
0.7
0.6
0.5
1.0
0.9
0.9
1.0
0.9
0.7
0.6
0.5
0.6
0.5
0.5
1.5
1.4
1.4
1.1
1.0
0.8
0.8
0.7
0.6
0.6
1.1
1.0
1.0
1.2
1.0
0.9
0.8
0.7
0.7
0.6
0.6
1.5
1.3
1.2
1.2
1.1
0.9
0.8
0.8
0.7
0.7

1.2
1.2
1.2
1.1
1.2
1.0
1.5
1.3
0.9
1.3
1.1
0.9
1.6
1.5
1.4
1.5
1.4
1.4
1.4
1.4
1.6
1.3
1.5
0.9
1.0
0.9
1.0
0.9
0.9
0.9
0.9
1.0
0.9
0.8
1.3
1.4
1.5
1.5
1.4
1.4
1.4
1.4
1.5
1.4
1.1
1.0
0.8
0.9
1.0
0.9
0.9
0.9
1.0
0.9
0.9
1.4
1.3
1.3
1.3
1.3
1.4
1.3
1.4
1.3
1.4

1.7
1.7
1.7
1.0
1.1
0.8
0.8
0.7
0.5
0.4

1.2
1.7
1.7
1.5
1.6
2.0
1.7
1.6
1.5
1.2

1.7
1.7
1.9
1.4
1.5
1.4
0.9
0.8
0.7

1.0
2.1
2.0
2.1
2.0
1.9
1.9
1.5
1.4

2.2
2.1
2.0
1.5
1.1
1.0
0.8
0.6
0.5

2.4
2.2
2.1
2.3
2.6
2.2
2.1
2.1
1.9

2.3
2.1
2.3
1.5
1.5
1.2
0.9
0.8

1.7
2.4
2.4
2.6
2.8
2.5
2.4
2.3

1.4
1.4
1.4
1.1
1.3
1.0
0.7
0.6
0.5
0.4
0.4
2.1
2.0
1.8
1.3
1.2
1.1
0.8
0.7
0.6
0.5
1.6
1.4
1.4
1.2
1.1
1.2
1.0
0.8
0.7
0.6
0.5
2.0
1.9
1.8
1.5
1.2
1.2
1.1
1.0
0.9
0.7

1.4
1.4
1.4
1.3
1.6
1.5
1.4
1.4
1.4
1.2
1.1
2.1
2.1
2.0
2.1
2.0
2.1
2.0
2.1
2.0
2.0
1.2
1.4
1.4
1.3
1.3
1.4
1.6
1.4
1.5
1.4
1.3
2.0
1.8
1.9
1.9
2.0
2.0
2.0
2.0
2.0
1.9

1.5
1.5
1.4
1.4
1.3
1.2
0.8
0.7
0.6
0.6
0.5
2.2
2.1
1.3
1.6
1.4
1.3
0.9
0.8
0.7
0.6
1.6
1.5
1.5
1.3
1.4
1.3
1.0
0.8
0.7
0.7
0.6
2.1
2.1
1.8
1.8
1.6
1.4
1.2
1.0
0.9
0.8

1.4
1.5
1.5
1.6
1.7
1.7
1.6
1.3
1.2
1.1
1.1
2.3
2.1
2.2
2.3
2.2
2.4
2.4
2.1
2.0
1.8
1.5
1.5
1.6
1.5
2.0
1.6
1.6
1.6
1.6
1.3
1.4
2.2
2.1
2.0
2.3
2.3
1.0
2.3
2.0
1.9
1.8

- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued 25

Bulletin 74.1:T205
Table 11. Cv Coefficient of T205 Series with 3/4 in. / DN 20 Body Size (continued)

SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

OFFSET FROM
SETPOINT

4.5 psi /
0.31 bar

20% Gauge

7 psi /
0.48 bar

20% Gauge

4.5 to 7 psig /
0.31 to 0.48 bar
Black

INLET
PRESSURE

psig

bar

9
12
30
60
80
100
125
150
175
200
9
12
30
60
80
100
125
150
175
200

0.62
0.83
2.1
4.1
5.5
6.9
8.6
10.3
12.1
13.8
0.62
0.83
2.1
4.1
5.5
6.9
8.6
10.3
12.1
13.8

Cv COEFFICIENT
Orifice Size, In. / mm
1/8 / 3.2

1/4 / 6.4

3/8 / 9.5

1/2 / 13

9/16 / 14

TYPE
T205

T205M

T205

T205M

T205

T205M

T205

T205M

T205

T205M

0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4

0.3
0.3
0.1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.2
0.3
0.3
0.3
0.3
0.3
0.3
0.3

0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.6
0.6
1.0
0.9
0.9
0.9
0.9
0.9
0.8
0.8
0.8
0.7

0.5
0.7
0.7
0.7
0.7
0.7
0.7
0.7
0.6
0.7
1.1
0.7
0.9
0.9
0.9
0.9
0.8
0.8
0.8
0.8

1.0
1.0
1.1
1.0
0.9
0.8
0.8
0.7
0.7
0.6
1.6
1.3
1.4
1.1
1.2
1.0
0.9
0.9
0.8
0.7

1.4
1.4
1.4
1.3
1.3
1.3
1.4
1.0
0.9
0.9
2.1
1.6
1.7
1.6
1.6
1.6
1.6
1.2
1.3
1.3

1.4
1.2
1.3
1.1
1.2
1.2
0.9
0.9
0.8
0.7
2.2
1.9
1.6
1.5
1.5
1.3
1.3
1.2
0.9
0.9

1.5
1.4
1.4
1.4
1.3
1.3
1.4
1.3
1.2
1.3
2.3
1.6
1.7
1.8
1.8
1.9
1.7
1.7
1.8
1.8

1.6
1.5
1.5
1.5
1.4
1.2
1.0
0.9
0.8
0.7
1.4
1.3
1.3
1.8
1.7
1.5
1.4
1.2
1.0
0.9

1.5
2.0
1.4
1.3
1.2
1.3
1.5
1.5
1.5
1.4
2.3
2.1
1.9
2.3
2.0
2.0
2.0
2.0
1.9
1.9

Table 12. Cv Coefficient of T205 Series with 1 in. / DN 25 Body Size

SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

1 in. w.c. /
2.5mbar

OFFSET FROM
SETPOINT

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

1 to 2.5 in. w.c. /
2.5 to 6.2 mbar
Orange

2 in. w.c. /
5.0 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

INLET
PRESSURE

psig

bar

1
2
5
10
15
20
30
40
60
80
100
125
150
175
200
1
2
5
10
15
20
30
40
60
80
100
125
150
175
200

0.07
0.14
0.34
0.69
1.0
1.4
2.1
2.8
4.1
5.5
6.9
8.6
10.3
12.1
13.8
0.07
0.14
0.34
0.69
1.0
1.4
2.1
2.8
4.1
5.5
6.9
8.6
10.3
12.1
13.8

Cv COEFFICIENT
ORIFICE SIZE, In. / mm
1/8 / 3.2

3/8 / 9.5

1/2 / 13

9/16 / 14

TYPE
T205

T205M

T205

T205M

T205

T205M

T205

T205M

T205

T205M

0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4

0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3

1.5
1.5
1.5
1.4
1.4
1.4
1.4
1.1
0.8
0.5
0.5

1.5
1.6
1.5
1.5
1.4
1.4
1.4
1.4
1.4
1.4
1.4

2.7
2.6
2.6
2.6
2.6
2.0
1.4
1.0

2.7
2.4
2.5
2.6
2.6
2.6
2.7
2.8

4.3
4.0
4.1
4.3
2.6
1.6
1.3

4.0
4.2
4.2
4.3
4.4
4.6
4.7

4.9
4.5
4.7
2.6
2.1
1.6

4.2
4.5
4.7
5.0
5.3
3.1

1.5
1.1
1.4
1.4
1.4
1.4
1.4
1.0
0.7
0.6
0.4

1.5
1.5
1.5
1.4
1.4
1.3
1.4
1.4
1.4
1.3
1.4

2.7
2.6
2.6
2.6
2.8
2.3
1.4
1.0

2.3
2.2
2.2
2.3
2.0
2.0
1.9
2.2

4.1
4.0
4.1
3.8
2.3
1.7
1.2

3.8
3.5
3.9
3.7
2.7
4.0
3.8

4.9
4.4
4.7
3.6
2.1
1.6

4.4
4.3
4.6
4.9
3.4
3.0

- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

26

1/4 / 6.4

Bulletin 74.1:T205
Table 12. Cv Coefficient of T205 Series with 1 in. / DN 25 Body Size

SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

2.5 in. w.c. /
6.2 mbar

2.5 to 7 in. w.c. /
6.2 to 17 mbar
Red

4 in. w.c. /
10 mbar

7 in. w.c. /
17 mbar

7 to 16 in. w.c. /
17 to 40 mbar
Unpainted

8 in. w.c. /
20 mbar

OFFSET FROM
SETPOINT

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

-1 to 2 in. w.c. /
-2.5 to 5.0 mbar

-2 to 2 in. w.c. /
-5.0 to 5.0 mbar

-2 to 2 in. w.c. /
-5.0 to 5.0 mbar

INLET
PRESSURE

psig

bar

1
2
5
10
15
20
30
40
60
80
100
125
150
175
200
1
2
5
10
15
20
30
40
60
80
100
125
150
175
200
1
2
5
10
15
20
30
40
60
80
100
125
150
175
200
1
2
5
8
20
35
60
75
100
125
150
175
200

0.07
0.14
0.34
0.69
1.0
1.4
2.1
2.8
4.1
5.5
6.9
8.6
10.3
12.1
13.8
0.07
0.14
0.34
0.69
1.0
1.4
2.1
2.8
4.1
5.5
6.9
8.6
10.3
12.1
13.8
0.07
0.14
0.34
0.69
1.0
1.4
2.1
2.8
4.1
5.5
6.9
8.6
10.3
12.1
13.8
0.07
0.14
0.34
0.55
1.4
2.4
4.1
5.2
6.9
8.6
10.3
12.1
13.8

Cv COEFFICIENT
Orifice Size, In. / mm
1/8 / 3.2

1/4 / 6.4

3/8 / 9.5

1/2 / 13

9/16 / 14

TYPE
T205

T205M

T205

T205M

T205

T205M

T205

T205M

T205

T205M

0.4
0.4
0.4
0.4
0.4
0.3
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.4
0.4
0.5
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.4
0.4
0.4
0.4
0.3
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.4
0.3
0.4
0.4
0.3
0.3
0.4
0.4
0.4
0.3
0.3
0.4
0.4
0.4
0.4
0.4
0.4
0.3

0.4
0.4
0.4
0.4
0.4
0.3
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.5
0.4
0.4
0.3
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.4
0.3
0.3
0.4
0.3
0.3
0.3
0.3
0.3
0.3

1.0
1.1
1.1
1.3
1.4
1.4
1.4
1.2
0.8
0.5
0.4
0.4
0.3

1.2
0.9
0.8
1.1
1.0
0.9
1.0
0.8
0.8
0.8
0.5
1.3
1.4

1.8
1.6
2.4
2.6
2.6
2.6
1.5
1.2
1.2
0.7

1.2
1.3
1.3
1.3
1.1
1.1
1.2
0.9
1.0
2.8

2.4
3.1
3.9
4.2
2.3
1.9
1.3
1.0

2.0
2.2
2.1
1.8
2.0
2.1
1.7
1.4

2.4
2.6
4.7
3.1
2.2

1.8
2.0
2.5
1.9
1.3

1.1
1.0
0.9
1.1
1.3
1.4
1.4
1.4
0.8
0.6
0.4
0.4
0.3

1.0
0.9
0.6
0.9
0.7
0.8
0.6
0.7
0.6
0.7
0.4
0.8
0.6

1.5
1.3
2.0
2.4
2.6
2.5
2.6
2.7
1.6
0.8

1.3
0.9
1.0
1.0
0.9
1.0
0.9
0.8
0.6
0.5

1.7
2.0
3.8
4.3
3.7
1.9
1.3
1.0

1.5
1.4
1.5
1.5
1.3
1.5
1.4
0.7

2.0
2.1
4.7
4.5
2.8
1.8
1.3

1.6
1.9
1.8
1.7
1.4
0.8
0.5

1.3
1.1
1.2
1.2
1.3
1.4
1.4
1.4
0.8
0.6
0.4
0.4
0.3

1.4
1.1
1.2
1.2
1.1
1.1
1.1
1.0
1.1
1.0
0.7
1.3
1.2

1.9
2.1
2.3
2.5
2.5
2.6
2.0
1.2
1.1
0.7

2.1
2.0
1.8
1.8
1.7
1.7
1.5
1.5
1.9
1.9

2.9
3.2
3.9
4.6
2.8
1.8
1.4
1.0

3.1
2.4
2.7
2.7
2.6
2.6
2.3
2.3

3.5
3.8
4.6
5.0
4.2

3.0
3.1
3.0
3.4
2.0

1.3
1.0
1.1
1.0
1.2
1.4
0.8
0.6
0.4
0.4
0.3

1.0
1.0
0.8
0.9
0.9
1.0
0.8
0.8
0.7
1.0
1.1

1.3
1.5
1.8
2.2
2.4
2.5
1.5
1.0
0.5
0.4
0.2

1.5
1.2
1.4
1.4
1.4
1.3
0.9
1.1
1.0
1.3
1.1

2.6
2.2
2.9
4.3
2.2
1.4
0.9
0.6
0.5
0.2

2.0
1.3
1.9
2.1
1.9
1.8
1.3
1.2
1.3
1.2

2.6
2.6
4.4
4.9
2.0
1.0
0.6
0.5
0.3

2.3
2.3
2.2
2.2
1.9
1.8
1.5
1.7
1.3

- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

27

Bulletin 74.1:T205
Table 12. Cv Coefficient of T205 Series with 1 in. / DN 25 Body Size (continued)

SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

12 in. w.c. /
30 mbar

OFFSET FROM
SETPOINT

20% Gauge

7 to 16 in. w.c. /
17 to 40 mbar
Unpainted

16 in. w.c. /
40 mbar

0.58 psi /
40 mbar

20% Gauge

20% Gauge

0.5 to 1.2 psig /
34 to 83 mbar
Yellow

1 psi /
69 mbar

20% Gauge

INLET
PRESSURE

Cv COEFFICIENT
Orifice Size, In. / mm
1/8 / 3.2

3/8 / 9.5

1/2 / 13

9/16 / 14

TYPE

psig

bar

T205

T205M

T205

T205M

T205

T205M

T205

T205M

T205

1

0.07

0.5

0.4

1.4

1.0

1.2

1.6

2.4

2.3

2.7

2.7

2

0.14

0.4

0.4

0.9

0.9

1.3

1.4

2.3

1.6

2.4

2.4

T205M

5

0.34

0.4

0.4

1.0

0.8

1.5

1.4

2.5

1.9

2.9

2.2

8

0.55

0.4

0.4

1.1

0.8

2.0

1.5

4.2

2.0

4.8

2.3

20

1.4

0.4

0.3

1.3

0.9

2.1

1.3

2.2

2.2

2.1

2.0

35

2.4

0.4

0.4

1.4

0.9

2.3

1.3

1.2

1.6

1.1

2.2

60

4.1

0.4

0.3

0.9

0.9

1.2

1.0

0.8

1.5

0.6

1.8

75

5.2

0.4

0.3

0.7

0.9

0.9

1.1

0.6

1.5

0.5

1.4

0.3

1.3

100

6.9

0.4

0.3

0.5

0.7

0.5

0.9

0.4

1.5

125

8.6

0.4

0.3

0.5

1.0

0.3

1.4

0.3

1.0

0.3

1.0

0.2

1.2

150

10.3

0.4

0.3

175

12.1

0.4

0.3

200

13.8

0.4

0.3

1

0.07

0.5

0.5

1.5

1.2

1.6

1.8

2.8

2.6

2.7

3.3

2

0.14

0.4

0.4

1.0

1.0

1.3

1.5

2.5

1.7

3.0

2.6

5

0.34

0.4

0.4

1.1

0.9

1.8

1.7

2.6

2.2

3.2

2.6

8

0.55

0.4

0.4

1.1

0.9

2.1

1.7

4.0

2.2

4.7

2.6

20

1.4

0.4

0.3

1.2

1.1

2.4

1.6

4.8

2.6

5.3

2.5

35

2.4

0.4

0.3

1.3

1.0

2.1

1.6

1.4

1.9

1.3

2.2

60

4.1

0.4

0.3

1.0

1.0

2.7

1.4

1.0

1.9

0.8

2.3

75

5.2

0.4

0.3

0.7

1.0

1.0

1.4

0.7

1.6

0.6

2.4

0.5

1.2

100

6.9

0.4

0.3

0.5

0.9

0.5

1.5

0.5

1.5

125

8.6

0.4

0.3

0.5

1.1

0.3

1.5

0.4

1.0

0.4

1.2

0.3

1.4

150

10.3

0.3

0.3

175

12.1

0.3

0.3

200

13.8

0.3

0.3

2

0.14

0.4

0.4

1.1

1.1

1.5

1.6

2.1

2.0

2.4

2.0

6

0.41

0.4

0.4

0.9

0.7

1.4

1.3

2.4

1.8

2.8

2.2

10

0.69

0.3

0.4

1.0

0.9

1.6

1.3

3.3

1.8

4.9

2.2

30

2.1

0.4

0.3

1.3

0.9

2.7

1.2

1.9

1.7

1.5

1.9

45

3.1

0.4

0.3

1.2

0.9

2.0

1.1

1.4

1.8

1.2

60

4.1

0.4

0.3

1.4

0.8

1.5

1.1

0.9

2.1

0.8

80

5.5

0.4

0.4

1.1

0.8

0.8

1.1

0.6

1.8

0.6

1.6

100

6.9

0.4

0.3

0.9

0.8

0.6

1.3

0.5

1.4

0.4

1.5

0.4

1.5

125

8.6

0.3

0.3

0.6

1.0

0.3

1.3

0.4

1.2

150

10.3

0.3

0.3

0.4

0.9

0.2

1.3

0.2

1.4

175

12.1

0.3

0.3

200

13.8

0.3

0.3

1.7

2

0.14

0.5

0.4

1.2

1.3

1.7

2.2

2.7

2.8

3.2

2.5

6

0.41

0.3

0.4

1.2

1.1

1.7

1.8

2.9

2.5

3.3

2.9

10

0.69

0.4

0.4

1.2

1.1

1.9

1.9

3.4

2.5

4.4

2.7

30

2.1

0.3

0.3

1.3

1.2

2.7

1.7

3.4

2.2

2.2

2.3

60

4.1

0.4

0.4

1.4

1.1

1.5

1.7

1.4

2.1

1.1

1.5

80

5.5

0.3

0.4

1.4

1.0

1.0

1.5

1.0

2.0

0.8

1.4

100

6.9

0.4

0.3

1.0

1.2

0.9

2.1

0.8

2.5

0.8

2.1

125

8.6

0.3

0.3

0.7

1.1

0.7

1.7

0.5

2.0

0.5

2.4

0.6

1.1

0.2

1.7

0.5

1.9

150

10.3

0.3

0.3

175

12.1

0.3

0.3

200

13.8

0.3

0.3

- Black areas indicate where desired flow capacity is not obtainable for a given inlet pressure.
- Shaded areas indicate where maximum operating inlet pressure for a given orifice size is exceeded.

- continued -

28

1/4 / 6.4

Bulletin 74.1:T205
Table 12. Cv Coefficient of T205 Series with 1 in. / DN 25 Body Size (continued)

SPRING RANGE
AND COLOR

OUTLET
PRESSURE
SETTING

1.2 psi /
83 mbar

OFFSET FROM
SETPOINT

20% Gauge

1.2 to 2.5 psig /
83 to 172 mbar
Green

2.5 psi /
0.17 bar

2.5 psi /
0.17 bar

20% Gauge

20% Gauge

2.5 to 4.5 psig /
0.17 to 0.31 bar
Light blue

4.5 psi /
0.31 bar

4.5 psi /
0.31 bar

20% Gauge

20% Gauge

4.5 to 7 psig /
0.31 to 0.48 bar
Black

7 psi /
0.48 bar

20% Gauge

INLET
PRESSURE

Cv COEFFICIENT
Orifice Size, In. / mm
1/8 / 3.2

1/4 / 6.4

3/8 / 9.5

1/2 / 13

9/16 / 14

TYPE

psig

bar

T205

T205M

T205

T205M

T205

T205M

T205

T205M

T205

4

0.28

0.3

0.3

0.8

0.9

1.0

0.9

1.3

1.5

1.8

1.6

8

0.55

0.3

0.3

0.8

0.6

1.0

0.9

1.6

1.4

1.9

1.6

12

0.83

0.3

0.3

0.8

0.7

1.1

1.0

1.7

1.4

2.1

1.6

30

2.1

0.3

0.3

0.9

0.7

1.3

0.9

1.4

1.3

5.4

1.5

T205M

60

4.1

0.3

0.3

1.2

0.7

2.8

0.9

1.6

1.3

1.6

1.4

80

5.5

0.3

0.3

1.3

0.6

1.5

0.9

1.2

1.4

1.0

1.4

100

6.9

0.3

0.3

1.4

0.7

1.0

0.8

1.0

1.3

0.9

1.4

125

8.6

0.4

0.3

1.1

0.6

0.9

0.8

0.7

1.2

0.7

1.3

150

10.3

0.3

0.3

0.9

0.7

0.9

1.1

0.6

1.3

0.6

0.9

175

12.1

0.3

0.3

0.4

0.6

0.6

1.0

0.5

1.2

0.6

1.0

200

13.8

0.3

0.3

0.3

0.6

0.4

0.9

0.4

1.0

0.4

0.7

6

0.41

0.4

0.4

1.1

1.1

1.7

1.7

2.4

2.2

2.6

2.5

10

0.69

0.4

0.3

1.1

0.9

1.6

1.6

2.3

2.1

2.6

2.6

30

2.1

0.4

0.3

1.0

1.0

1.9

1.5

4.0

1.9

5.3

2.5

60

4.1

0.4

0.3

1.3

1.0

2.7

1.3

2.4

2.3

2.3

2.1

80

5.5

0.4

0.3

1.4

0.9

2.7

1.4

1.7

2.3

1.7

2.5

100

6.9

0.4

0.3

1.4

1.0

1.2

1.3

1.3

2.2

1.4

2.3

125

8.6

0.3

0.3

1.4

0.9

1.0

1.4

1.0

2.2

1.1

2.3

150

10.3

0.3

0.4

1.2

1.0

1.2

1.5

0.9

1.9

0.8

2.2

175

12.1

0.3

0.3

1.0

0.9

1.0

1.5

0.7

2.0

0.7

2.2

200

13.8

0.3

0.3

1.0

0.9

0.8

1.6

0.6

1.9

0.6

1.8

4

0.28

0.4

0.4

0.9

0.9

1.1

1.1

1.8

1.6

1.8

1.7

8

0.55

0.3

0.4

0.6

0.5

1.0

1.0

1.6

1.4

1.8

1.7

12

0.83

0.3

0.3

0.7

0.7

1.0

1.0

1.6

1.4

1.8

1.5

30

2.1

0.3

0.3

0.7

0.7

1.1

0.9

1.5

1.3

2.8

1.5

60

4.1

0.3

0.3

0.8

0.6

1.4

0.9

4.8

1.1

5.3

1.3

80

5.5

0.3

0.3

1.0

0.7

2.8

0.9

1.8

1.2

1.9

1.3

100

6.9

0.3

0.3

1.2

0.7

1.9

0.8

1.4

1.2

1.4

1.5
1.1

125

8.6

0.3

0.3

1.4

0.7

1.1

0.8

1.1

1.2

1.2

150

10.3

0.3

0.3

1.4

0.7

1.3

1.0

1.0

1.1

1.0

1.4

175

12.1

0.3

0.3

1.2

0.7

1.1

0.9

0.8

1.2

0.8

1.5

200

13.8

0.3

0.3

1.0

0.6

0.9

1.0

0.7

1.3

0.6

1.4

8

0.55

0.4

0.4

1.0

0.9

1.5

1.5

2.4

2.1

2.4

2.2

12

0.83

0.4

0.4

0.9

0.7

1.4

1.4

2.2

1.9

2.3

2.0

30

2.1

0.4

0.4

0.9

0.9

1.4

1.4

2.3

1.9

3.1

2.1

60

4.1

0.4

0.4

1.0

0.9

2.1

1.4

4.6

1.7

5.5

2.0

80

5.5

0.3

0.4

1.1

0.9

2.7

1.3

4.9

1.9

5.7

2.0

100

6.9

0.4

0.3

1.3

0.9

2.7

1.4

2.2

1.9

2.2

2.2

125

8.6

0.3

0.4

1.4

0.9

2.7

1.4

1.6

1.8

1.7

2.2

150

10.3

0.3

0.3

1.4

0.9

1.6

1.4

1.3

1.9

1.5

2.2

175

12.1

0.3

0.3

1.4

0.9

13.5

1.6

1.2

1.8

1.2

1.9

200

13.8

0.3

0.3

1.4

0.9

1.2

1.4

1.0

1.8

1.1

2.0

9

0.62

0.3

0.3

0.7

0.5

1.1

1.1

1.6

1.4

1.8

1.5

12

0.83

0.3

0.3

0.7

0.6

1.1

1.0

1.5

1.4

1.7

1.6

30

2.1

0.3

0.3

0.7

0.7

1.0

1.0

1.5

1.3

1.9

1.5

60

4.1

0.2

0.3

0.7

0.7

1.2

1.0

3.7

1.3

4.6

1.4

80

5.5

0.3

0.3

0.8

0.7

2.2

0.9

4.5

1.2

5.3

1.3

100

6.9

0.3

0.3

0.9

0.7

2.6

0.9

2.8

1.4

5.4

1.3

125

8.6

0.3

0.3

1.1

0.7

2.7

0.8

1.8

1.2

1.9

1.4

150

10.3

0.3

0.3

1.3

0.7

2.1

1.0

1.5

1.3

1.6

1.3

175

12.1

0.3

0.3

1.4

0.7

1.5

1.0

1.3

1.2

1.3

1.4

200

13.8

0.3

0.3

1.4

0.6

1.3

1.0

1.1

1.1

1.2

1.2

9

0.62

0.4

0.5

1.1

1.2

1.7

1.5

2.3

2.3

2.7

2.4

12

0.83

0.4

0.4

0.9

0.7

1.4

1.1

2.1

2.0

2.4

2.2

30

2.1

0.3

0.3

0.9

0.9

1.3

1.3

2.0

1.9

2.5

2.0

60

4.1

0.3

0.3

0.9

0.8

1.5

1.2

3.5

1.9

4.5

2.1

80

5.5

0.3

0.3

1.0

0.9

2.1

1.2

4.5

1.8

5.3

1.9

100

6.9

0.3

0.3

1.0

0.9

2.4

1.0

4.7

1.6

5.3

1.8

125

8.6

0.3

0.3

1.2

0.9

2.7

1.2

4.7

1.6

5.3

1.9

150

10.3

0.4

0.3

1.3

0.8

2.8

1.3

2.0

1.8

2.1

2.1

175

12.1

0.3

0.3

1.3

0.9

2.8

1.3

1.9

1.7

1.8

1.9

200

13.8

0.3

0.3

1.3

0.8

1.8

1.3

1.6

1.7

1.3

1.9

29

Bulletin 74.1:T205
8.38 / 212.9

1/4 NPT VENT

NPT

5.58 /
141.6

FLANGED

4.12 /
104.6
2.25 /
57.2

1/2 NPT CONTROL
LINE CONNECTION
6.18 / 157

1.59 /
40.4

10.37 / 263.4

T205 SERIES WITH NPT END CONNECTION

14 /
355.6

8.07 / 205
MAXIMUM

7.19 /
182.6

SPRING ADJUSTMENT ASSEMBLY OPTION

T205 SERIES WITH FLANGED END CONNECTION
IN. / mm

Figure 6. Dimensions

30

Bulletin 74.1:T205
Ordering Information
When ordering, complete the ordering guide on this page.
Refer to the Specifications section on page 2. Review
the description to the right of each specification and the

information in each referenced table or figure. Specify your
choice whenever a selection is offered.

Ordering Guide
Type (Select One)
    T205, Internal pressure registration
    T205M, External pressure registration
Body Size (Select One)
    3/4 in. / DN 20***
    1 in. / DN 25***
 ody Material and End Connection Style (Select One)
B
  Gray Cast Iron
    NPT***
  WCC Carbon Steel
    NPT***
     CL150 RF**
     CL300 RF*
     PN 16/25/40 RF*, specify rating_________
  CF8M/CF3M Stainless Steel
    NPT***
     CL150 RF**
     CL300 RF*
     PN 16/25/40 RF*, please specify rating_________
Outlet (Control) Pressure Range (Select One)
    1 to 2.5 in. w.c. / 2.5 to 6.2 mbar, Orange***
    2.5 to 7 in. w.c. / 6.2 to 17 mbar, Red***
    7 to 16 in. w.c. / 17 to 40 mbar, Unpainted***
    0.5 to 1.2 psig / 34 to 83 mbar, Yellow***
    1.2 to 2.5 psig / 83 to 172 mbar, Green**
    2.5 to 4.5 psig / 0.17 to 0.31 bar, Light Blue**
    4.5 to 7 psig / 0.31 to 0.48 bar, Black**
Orifice Size (Select One)
    1/8 in. / 3.2 mm***
    1/4 in. / 6.4 mm***
    3/8 in. / 9.5 mm***
    1/2 in. / 13 mm**
    9/16 in. / 14 mm*
316 Stainless Steel Trim Parts (Select One)
   Yes
   No

Trim Material (See Table 4, Select One)
   Standard
   VV
   TN
   TV
   TK
   TE
Adjusting Screw (Select One)
    Internal Flat Circular (standard)***
   External Square Head (Available for Green, Light blue
and Black springs only. Steel closing cap is automatically
supplied in this option)***
Closing Cap Material (Select One)
   Plastic (standard) (not available for Green,
Light blue and Black springs)***
   Steel (standard for Green, Light blue and
Black springs)***
    Stainless steel**
Body Position (See Figure 5, Select One)
    Position 1 (standard)***
    Position 2***
    Position 3***
    Position 4***
Spring Case Orientation/Vent Type (Select One)
    Spring Case Sideways (Type Y602-12) (standard)
    Spring Case Down (Type Y602-1)
    Spring Case Up (Type Y602-11)
Vent Orientation (See Figure 5, Select One)
    Position A (standard)***
    Position B***
    Position C***
    Position D***
NACE Standard MR0175-2002 Construction (Select One)
   Yes
   No
Replacement Parts Kit (Optional)
   Yes, send one replacement parts kit to match this order.

31

Bulletin 74.1:T205
Ordering Guide (continued)

Specification Worksheet
Application:
Specific Use
Line Size
Fluid Type
Specific Gravity
Temperature
Does the Application Require Overpressure Protection?
Yes
No

Regulators Quick Order Guide
***
**
*

Readily Available for Shipment
Allow Additional Time for Shipment
Special Order, Constructed from Non-Stocked Parts. Consult
your local Sales Office for Availability.

Pressure:
Maximum Inlet Pressure
Minimum Inlet Pressure
Differential Pressure
Set Pressure
Maximum Flow
Accuracy Requirements:
Less Than or Equal To:
5%
10%
20%
Wide-Open
Construction Material Requirements (if known):

Availability of the product being ordered is determined by the component with the
longest shipping time for the requested construction.

Industrial Regulators

Natural Gas Technologies

TESCOM

Emerson Process Management
Regulator Technologies, Inc.

Emerson Process Management
Regulator Technologies, Inc.

Emerson Process Management
Tescom Corporation

USA - Headquarters
McKinney, Texas 75070 USA
Tel: +1 800 558 5853
Outside U.S. +1 972 548 3574

USA - Headquarters
McKinney, Texas 75070 USA
Tel: +1 800 558 5853
Outside U.S. +1 972 548 3574

USA - Headquarters
Elk River, Minnesota 55330-2445, USA
Tels: +1 763 241 3238
+1 800 447 1250

Asia-Pacific
Shanghai 201206, China
Tel: +86 21 2892 9000

Asia-Pacific
Singapore 128461, Singapore
Tel: +65 6770 8337

Europe
Selmsdorf 23923, Germany
Tel: +49 38823 31 287

Europe
Bologna 40013, Italy
Tel: +39 051 419 0611

Europe
Bologna 40013, Italy
Tel: +39 051 419 0611
Chartres 28008, France
Tel: +33 2 37 33 47 00

Asia-Pacific
Shanghai 201206, China
Tel: +86 21 2892 9499

Middle East and Africa
Dubai, United Arab Emirates
Tel: +971 4811 8100

Middle East and Africa
Dubai, United Arab Emirates
Tel: +971 4811 8100

The distinctive diamond shape cast into every spring
case uniquely identifies the regulator as part of the
Fisher® brand and assures you of the highest-quality
engineering, durability, performance, and support.

For further information visit www.fisherregulators.com

The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls International LLC,
a business of Emerson Process Management.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or 
guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifi cations of such 
products at any time without notice.
Emerson Process Management Regulator Technologies, Inc. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and
maintenance of any Emerson Process Management Regulator Technologies, Inc. product remains solely with the purchaser.

©Emerson Process Management Regulator Technologies, Inc., 2013, 2014; All Rights Reserved



---

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