Emerson 133 Series Pressure Reducing Regulators Data Sheet

2015-03-30

: Emerson Emerson-133-Series-Pressure-Reducing-Regulators-Data-Sheet-680857 emerson-133-series-pressure-reducing-regulators-data-sheet-680857 emerson pdf

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The industry standard for pressure regulators and flow control products.
Industrial Regulators
Conversion Tables
2
TEMPERATURE CONVERSION FORMULAS
From Fahrenheit (°F) to Celsius (°C) (°F - 32) x 5/9
From Fahrenheit (°F) to Kelvin (K) (°F + 459.67) / 1.8
From Celsius (°C) to Fahrenheit (°F) (°C x 9/5) + 32
From Celsius (°C) to Kelvin (K) (°C + 273.15)
From Kelvin (K) to Fahrenheit (°F) (1.8 x K) - 459.67
From Kelvin (K) to Celsius (°C) (K - 273.15)
PRESSURE CONVERSION
FROM TO
bar kPa mm Hg (0°C) mm H2O (4°C) kg/cm2in H2O (4°C) psi in Hg (32°C)
bar 1100 750.064 10197.443 1.02 401.474 14.504 29.53
kPa 0.01 17.501 101.974 0.01 4.015 0.145 0.295
mm Hg (0°C) 0.001 0.133 113.595 0.001 0.535 0.019 0.039
mm H2O (4°C) 0.0001 0.01 0.074 10.0001 0.039 0.001 0.003
kg/cm20.981 98.067 735.561 10000.275 1393.712 14.223 28.959
in H2O (4°C) 0.002 0.249 1.868 25.4 0.003 10.036 0.074
psi 0.069 6.895 51.715 703.089 0.07 27.681 12.036
in Hg (32°C) 0.034 3.386 25.4 345.324 0.035 13.595 0.491 1
VOLUMETRIC GAS FLOW CONVERSION
FROM TO
Nm3/hr SCFH SCFM in3/min Nliters/min
Nm3/hr 135.31 0.59 1,017 16.67
SCFH 0.03 10.02 28.8 0.47
SCFM 1.7 60 11,728 28.32
in3/min 0.001 0.03 0.0006 10.02
Nliters/min 0.06 2.12 0.04 61.02 1
VOLUMETRIC LIQUID FLOW CONVERSION
FROM TO
liters/sec liters/min m3/h ft3/min ft3/hr US
gallon/min
UK
gallon/min
barrels
(petroleum)/min
liters/sec 160 3.6 2.12 127.1 15.85 13.2 0.38
liters/min 0.02 10.06 0.04 2.12 0.26 0.22 0.01
m3/h 0.28 16.67 10.59 35.31 4.4 3.67 0.1
ft3/min 0.47 28.32 1.7 160 7.48 6.23 0.18
ft3/hr 0.01 0.47 0.03 0.02 10.12 0.1 0.003
US gal/min 0.06 3.79 0.23 0.13 8.02 10.83 0.02
UK gal/min 0.08 4.55 0.27 0.16 9.63 1.2 10.03
barrels (petroleum)/min 2.65 159 9.54 5.62 336.9 42 34.97 1
Regulators
Air
MR95 Series ..................................10
MR98 Series ..................................10
67C Series ....................................10
1301F/1301G Series ...........................11
67D Series ....................................11
627 Series ....................................11
63EG Series ...................................11
Steam
Type 92B .....................................12
Type 92S .....................................12
Type SR5 .....................................13
MR95 Series ..................................13
Type 92C .....................................13
MR98 Series ..................................13
Tank Blanketing/Vapor Recovery
T205 Series ...................................14
Type T205B ...................................14
T208 Series ...................................14
Type Y692 ....................................15
Type Y693 ....................................15
Type ACE95 ...................................15
Type 1190 ....................................15
Type 1290 ....................................15
Table of Contents
INTRODUCTION
Introduction to Regulators............................................................ 4
Industrial Regulator Quick Selection Table................................................ 6 - 7
Fisher® Industrial Regulator Plant Utility Application Map................................. 8 - 9
Regulator Tips......................................................................... 22 -23
3
Liquids
Type MR105 ..................................16
Type MR108 ..................................16
Type 92W.....................................16
Type 63EG-98HM .............................16
MR95 Series ..................................17
MR98 Series ..................................17
Type LR125 ...................................17
Type LR128 ...................................17
Type 1098-EGR................................17
Type 75A .....................................17
Process Gas
Type 1098-EGR ...............................18
MR95 Series ..................................18
MR98 Series ..................................19
T205 Series ...................................19
T208 Series ...................................19
T205VB Series ................................19
Fuel Gas
Type 310A ....................................20
Type EZR .....................................20
Y600A Series..................................20
Type 1098-EGR ...............................21
EZH and EZHSO Series .........................21
Type 99.......................................21
133 Series ....................................21
Pilot-Operated Regulators
Pilot-Operated regulators are preferred for high flow rates
or where precise pressure control is required. A popular
type of pilot-operated system uses two-path control.
In two-path control, the main valve diaphragm responds
quickly to downstream pressure changes, causing an
immediate correction in the main valve plug position.
At the same time, the pilot diaphragm diverts some of the
reduced inlet pressure to the other side of the main valve
diaphragm to control the final positioning of the main
valve plug. Two-path control results in fast response and
accurate control.
Pressure Reducing Regulator Selection
The majority of applications require a pressure reducing
regulator. Assuming the application calls for a pressure
reducing regulator. The following parameters must
be determined:
  •  Outlet pressure to be controlled
  •  Inlet pressure to the regulator
  •  Capacity required
  •  Shut-off capability required
  •  Process fluid
  •  Process fluid temperature
  •  Accuracy required
  •  Pipe size required
  •  End connection style
  •  Material requirements
  •  Control line needed
  •  Overpressure protection
Regulators are self-contained, control devices which use
energy from the controlled system to operate whereas
control valves require external power sources, transmitting
instruments, and control instruments.
Pressure Reducing Regulators
A pressure reducing regulator maintains a desired outlet
pressure while providing the required fluid flow to satisfy
a downstream demand. The pressure which the regulator
maintains is the outlet pressure setting (setpoint) of
the regulator.
Pressure Reducing Regulator Type
The two main types of regulators:
1. Direct-Operated
2. Pilot-Operated
4
Direct-Operated
Pilot-Operated
Pressure Reducing Regulators
Figure 1. Direct-Operated Regulator
SPRING
DIAPHRAGM
VALVE
Figure 2. Pilot-Operated Regulator
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
LOADING PRESSURE
MAIN
REGULATOR
PILOT
REGULATOR
Direct-Operated Regulators
Direct-Operated regulators are the simplest style of the
regulators. At low set pressures, typically below 1 psig /
0.07 bar, they can have very accurate (±1%) control. At
high control pressures, up to 500 psig / 34.5 bar, 10% to
20% control is typical.
In operation, a direct-operated, pressure reducing
regulator senses the downstream pressure through either
internal pressure registration or external control line. This
downstream pressure opposes a spring which moves the
diaphragm and  valve  plug  to  change the  size of the  flow 
path through the regulator.
Direct-operated regulators have many commercial and
residential uses. Typical applications include industrial,
commercial, and domestic gas service or instrument air.
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
Pilot-operated relief valves are used in applications
requiring high-capacity and low-pressure buildup.
Internal Relief
The regulator shown in Figure 5 includes an internal relief
valve. The relief valve has a measuring element (the main
regulator diaphragm), a loading element (a light spring),
and a restricting element (a valve seat and disk).
The relief valve assembly is located in the center of
the regulator diaphragm. Internal relief is often used
in industrial applications where atmospheric exhaust is
acceptable, and low buildup is not required.
Backpressure Regulator Selection
Backpressure regulators control the inlet pressure rather
than the outlet pressure. The selection criteria for the
backpressure regulator is the same as for a pressure
reducing regulator.
Relief Valves and Backpressure Regulators
A pressure relief valve is a control device that opens to relieve
fluid to atmosphere during an overpressure occurrence. A
backpressure regulator is a control device that maintains a
constant upstream pressure throughout a given flow range.
Relief Valve Types
Relief valves are available in four general types: pop type,
direct-operated, pilot-operated, and internal relief valves.
Direct-Operated Relief Valves
System pressure is referenced under a diaphragm and
opposed by a spring. As system pressure increases past the
setpoint, the relief valve opens which allows fluid to escape
and protects the system. The increase in pressure above
the relief setpoint that is required to produce more flow
through the relief valve is referred to as pressure buildup.
Direct-Operated relief valves are commonly used in industry
to protect industrial furnaces and other equipment.
Pilot-Operated Relief Valves
In normal operation, when system pressure is below
setpoint of the relief valve, the pilot remains closed.
This allows loading pressure to register on top of the
main relief valve diaphragm. Loading pressure on top
of the diaphragm is opposed by an equal pressure (inlet
pressure) on the bottom side of the diaphragm. With
little or no pressure differential across the diaphragm, the
spring keeps the valve seated. When the system pressure
increases past the setpoint, the pilot opens and exhausts
the loading pressure from the top of the relief valve main
diaphragm which allows the main valve to open.
Relief Valve / Backpressure Regulator
Relief Valve
Backpressure Regulator
5
Figure 5. Internal Relief
Figure 4. Pilot-Operated Relief Valve
INLET PRESSURE LOADING PRESSURE
EXHAUSTATMOSPHERIC PRESSURE
FLOW
CONTROL
LINE
PILOT
RESTRICTION
PILOT
EXHAUST
MAIN REGULATOR
EXHAUST
MAIN RELIEF
VALVE
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
LARGE OPENING FOR RELIEF
CLOSED RESTRICTION
OPENED INTERNAL RELIEF
Figure 3. Direct-Operated Relief Valve
SYSTEM PRESSURE LOWER-PRESSURE SYSTEM
(USUALLY ATMOSPHERE)
DIAPHRAGM
SPRING
VALVE
VENT
FLOW
Industrial Regulators Selection Table
Pressure Reducing Regulators
6
Backpressure Regulator
Pressure Reducing Regulator
Air
Steam
Tank Blanketing
Liquid
Process Gas
Fuel Gas
OUTLET PRESSURE
RANGE*, psig / bar
TYPE OR
SERIES
OPERATION
METHOD BODY SIZE, NPS
MAXIMUM
INLET
PRESSURE,
psig / bar
MAXIMUM
FLOW
CAPACITY,
SCFH / Nm3/h
REFERENCES
PAGE BULLETIN NO.
0-125 / 0-8.6 67C Direct 1/4 250 / 17.2 4350 / 117 10 71.1:67C
0-150 / 0-10.3 67CS Direct 1/4 400 / 27.6 4350 / 117 -71.1:67C
0-150 / 0-10.3 67D Direct 1/2 400 / 27.6 20,900 / 560 11 71.1:67D
10-500 / 0.69-34.5 1301 Direct 1/4 6000 / 414 4500 / 121 11 71.1:1301
2-400 / 0.14-27.6 MR95 Direct 1/4 to 2 1000 / 68.9 17,000 lbs/h /
7600 kg/h 13 71.1: MR95
2-135 / 0.14-9.3 SR5 Direct 1/2 to 3 210 / 14.5 6820 lbs/h /
3096 kg/h 13 71:1:SR5
2-250 / 0.14-17.2 92B Pilot 1, 1-1/2, 2, 3, and 4 300 / 20.7 42,400 lbs/h /
19,234 kg/h 12 71.2:92B
2-250 / 0.14-17.2 92S Pilot 1 to 6 x 4 300 / 20.7 45,100 lbs/h /
20,457 kg/h 12 71.2:92S
5-250 / 0.34-17.2 92C Pilot 1/2, 3/4, and 1 300 / 20.7 3600 lbs/h /
1633 kg/h 13 71.2:92C
20-80 / 1.4-5.5 75A Direct 1/2 to 2-1/2 200 / 13.8 260 gpm /
984 l/min 17 71.1:75A
2-250 / 0.14-17.2 92W Pilot 1 to 4 300 / 20.7 960 gpm /
3720 l/min 16 71.2:92W
5-500 / 0.34-34.5 627 Direct 3/4, 1, and 2 2000 / 138 162,000 / 4342 11 71.1:627
10-500 / 0.69-34.5 627W Direct 3/4, 1, and 2 900 / 62.1 82 gpm /
310 l/min -71.1:627W
5 to 300 / 0.34 to 20.7 MR105 Direct 1, 2, 3, and 4 400 / 27.6 1650 gpm /
6240 l/min 16 71.1:MR105
4"wc-300 / 10 mbar-20.7 1098-EGR Pilot 1 to 12 x 6 400 / 27.6 11,934 gpm /
45,170 l/min 18 71.2:1098-EGR
0.25"wc-7 / 0.6 mbar-0.48 1190 Pilot 1, 2, 3, 4, 6, 8 x 6, and
12 x 6 400 / 27.6 2,811,000 /
75,335 15 74.1:1190
2"wc-100 / 5 mbar-6.9 99 Pilot 21000 / 69.0 265,000 / 7102 21 71.2:99
2"wc-5 / 5 mbar-0.34 66 Direct 2, 3, and 4 10 / 0.69 49,000 / 1313 -71.1:66
1"wc-7 / 2 mbar-0.48 T205 Direct 3/4 and 1 200 / 13.8 12,919 / 346.2 14 74.1:T205
1"w.c.-7 psig / 2 mbar-0.48 bar T205B Direct 3/4 and 1 200 / 13.8 18,568 / 498 14 74.1:T205B
1"wc-10 / 2 mbar-0.69 Y692 Direct 1-1/2 and 2 150 / 10.3 19,820 / 531 15 74.1:Y692
0.5"wc-10 / 1 mbar-0.69 Y693 Direct 1-1/2 and 2 150 / 10.3 26,700 / 716 15 74.1:Y693
2"wc-60 / 5 mbar-4.1 133 Direct 2150 / 10.3 170,000 / 4556 21 71.1:133
-5"wc-1.5 / -12 mbar-0.10 ACE95 Pilot 3/4, 1, and 1 x 2 200 / 13.8 499,600 /
13,390 15 74.1:ACE95
-5"wc-1.5 / -12 mbar-0.10 ACE95jr Direct 1/2, 1 x 1/2, and 1 200 / 13.8 3330 / 89.2 -74.1:ACE95jr
-5"wc-1.5 / -12 mbar-0.10 ACE95sr Pilot 2200 / 13.8 499,600 /
13,390 -74.1:ACE95
Pad: 0.5"wc-2.2 / 1 mbar-0.15
Depad: 4"wc-2 / 10 mbar-0.14 ACE97 Pilot Pad: 1/2, 1, and 2 and
Depad: 1-4 200 / 13.8
Pad: 499,600 /
13,389
De-pad:
106,200 / 2846
-74.3:ACE97
6"wc-1000 / 15 mbar-69.0 EZR Pilot 1 to 8 1500 / 103 26,138,000 /
700,498 20 71.2:EZR
3.5"wc-60 / 9 mbar-4.1 299H Pilot 1-1/4, 1-1/2, and 2 175 / 12.1 108,120 / 2898 -71.2:299H
7
This catalog is a brief overview of the Fisher® product line.
Please visit www.fisherregulators.com to view the entire Fisher offering.
Backpressure Regulator
Pressure Reducing Regulator
*Inlet/Outlet Pressure Range and Maximum Inlet Pressure are indicated as psig/bar or inches w.c./mbar.
Selection Table
Air
Steam
Tank Blanketing
Liquid
Process Gas
Fuel Gas
OUTLET PRESSURE
RANGE*, psig / bar
TYPE OR
SERIES
OPERATION
METHOD BODY SIZE, NPS
MAXIMUM
INLET
PRESSURE,
psig / bar
MAXIMUM
FLOW
CAPACITY,
SCFH / Nm3/h
REFERENCES
PAGE BULLETIN NO.
15-150 / 1-10.3 LR125 Pilot 1, 2, 3, and 4 300 / 20.7 2052 gpm /
7769 l/min 17 71.2:LR125
35-375 / 2.4- 25.9 LR128 Pilot 1, 2, 3, and 4 450 / 31.0 3368 gpm /
12,748 l/min 17 71.4:LR128
4"w.c. to 7 psig /
10 mbar to 0.48 bar Y600A Direct 3/4 and 1 150 / 10.3 6660 / 178 20 71.1:Y600A
2"wc-10 / 5 mbar-0.69 CS800 Direct 1-1/4 ,1-1/2, and 2 125 / 8.6 36,270 / 974 -71.1:CS800
14.5-1160 / 1.0-80.0 EZH Pilot 1 to 4 1500 / 103 13,833,000 /
370,724 21 71.2:EZH and
EZHSO
3-500 / 0.21-34.5 630 Direct 1 and 2 1500 / 103 96,000 / 2573 -71.1:630
10-700 / 0.69-48.3 310A Pilot 1 to 4 x 6 1500 / 103 21,170,000 /
567,356 20 71.2:310A
5"wc-75 / 12 mbar-5.2 289 Direct 1/4, 3/4, 1, and 2 100 / 6.9 120,000 / 3216 -71.4:289
3-125 / 0.21-8.6 1808 Pilot 2150 / 10.3 298,000 / 7986 -71.4:1808
15-375 / 1.0-25.9 63EG-98HM Pilot 2 to 6 and 8 x 6 450 / 31.0 4900 gpm /
18,547 l/min 16 71.4:63EG-98HM
2-375 / 0.14-25.9 MR98 Direct 1/4 to 2 400 / 27.6 300 gpm /
1150 l/min 17 71.4: MR98
5 to 300 / 0.34 to 20.7 MR108 Direct 1, 2, 3, and 4 400 / 27.6 1460 gpm /
5530 l/min 16 71.4:MR108
2-125 / 0.14-8.6 SR8 Direct 1/2 to 3 210 / 14.5 5460 lbs/h /
2479 kg/h -71.4:SR8
10-400 / 0.69-27.6 63EG Pilot 1 to 6 and 8 x 6 400 / 27.6 8,795,000 /
235,706 11 71.4:63EG
2"wc-5 / 5 mbar-0.34 66R Direct 2, 3, and 4 8 / 0.55 115,000 / 3082 -71.4:66
2"wc-7 / 5 mbar-0.48 T208 Direct 3/4 and 1 75 / 5.2 2286 / 61.3 14 74.2:T208
2"wc-7 / 5 mbar-0.48 Y696 Direct 1-1/2 and 2 15 / 1.0 13,100 / 351 -74.2:Y696
0.5"wc-7 / 1 mbar-0.48 1290 Pilot 1, 2, 3, 4, 6, 8 x 6, and
12 x 6 12.5 / 0.86 327,400 / 8774 15 74.2:1290
3-60 / 0.21-4.1 119 Direct 3/4, 1, and 1-1/4 150 / 10.3 - - - - -71.1:119
3-150 / 0.21-10.3 167D Direct 1/4 and 1/2 400 / 27.6 - - - - -71.7:167D
14-125 / 0.97-8.6 167DA Direct 1/4 and 1/2 125 / 8.6 - - - - -71.7:167D
2-150 / 0.14-10.3 168 Direct 1/4 150 / 10.3 - - - - -71.7:168
0-5 / 0-0.35 vacuum T205VB Direct 3/4 and 1 200 / 13.8 2468 / 66 19 71.3:T205VB
1"wc-3 / 2 mbar-0.21 Y692VB Direct 1-1/2 and 2 30 / 2.1 2500 / 67 -71.3:Y692VB
0-12.8 / 0-0.88 T208VR Direct 3/4 and 1 Full Vacuum 1345 / 36.0 -71.3:T208VR
1"wc-3 / 2 mbar-0.21 Y696VR Direct 1-1/2 and 2 Full Vacuum 6953 / 186 -71.3:Y696VR
Backpressure Regulators
Relief Valve
Process Reactor
MR98
MR105
LR128
MR95
MR95
easy-e
167DA
67DFR
MR95
1098
EGR
66
92C
63EG-
98HM
easy-e
T205 ACE 95 1290
1098
EGR
67DFR
easy-e
92B
92S
T208VR
T205VB
Water
Tower
Industrial
Gas Plant
Pump
Process
Storage
Feedwater Tank
Safety Shower/
Eyewash Station
Compressor
Batch
Reactor
Tank Blanket
Heat Exchanger
Process Reactor
Boiler
Packaging
Station
Glove
Box
Instrument Purge
Vacuum
Pump
Vacuum
Breaker
Vacuum
Regulator
Vapor
Recovery
Regulator
Control Line
Control Valve
Fuel Gas
Pneumatic Air
Steam
Process Liquids
Lube Oil
Oxygen
Hydrogen
Nitrogen
Water
Industrial Regulators
For Plant Utility Applications
Process Reactor
MR98
MR105
LR128
MR95
MR95
easy-e
167DA
67DFR
MR95
1098
EGR
66
92C
63EG-
98HM
easy-e
T205 ACE 95 1290
1098
EGR
67DFR
easy-e
92B
92S
T208VR
T205VB
Water
Tower
Industrial
Gas Plant
Pump
Process
Storage
Feedwater Tank
Safety Shower/
Eyewash Station
Compressor
Batch
Reactor
Tank Blanket
Heat Exchanger
Process Reactor
Boiler
Packaging
Station
Glove
Box
Instrument Purge
Vacuum
Pump
Vacuum
Breaker
Vacuum
Regulator
Vapor
Recovery
Regulator
Control Line
Control Valve
Fuel Gas
Pneumatic Air
Steam
Process Liquids
Lube Oil
Oxygen
Hydrogen
Nitrogen
Water
Industrial Regulators
For Plant Utility Applications
Manufacturing and process plants use
compressed air as a power supply for many
devices within the plant. Plant air, also called
shop air, is used for cooling and as a power
source for pneumatic tools, sand blasters,
sprayers, conveyors, robotics, and other
mechanical tools. Instrument air is used to
power instruments, such as controllers,
positioners, switching valves, panel loaders,
and volume boosters.
Plant air or shop air runs from compressor
throughout the plant. Pressure reducing
regulators control the pressure to devices at
each point of use of the air line.
Instrument air can come from the plant air line,
or they may be separate air lines throughout
the plant. In either case, the air supplied to the
instruments must be cleaned and dried before
it enters the instruments. Filters and dryers
remove dust, moisture, and other debris from
the air.
Air
• Compact
• Rugged Construction
• Integral Filters
• Wide Selection
• Built to Last
• Time-Proven Design
10
Pressure Reducing
MR95 Series
Body Size NPS 1/4, 1/2, 3/4, 1, 1-1/2, and 2 /
DN 15, 20, 25, 40, and 50
Outlet Pressure Range 2 to 400 psig / 0.14 to 27.6 bar
Maximum Inlet
Pressure 1000 psig / 68.9 bar
Maximum Capacity 510,000 SCFH / 13,668 Nm3/h
Operation Method Direct-Operated
Body Material Cast Iron, Steel, Stainless Steel,
Hastelloy® C, and Monel®
Bulletin No. 71.1:MR95
The MR95 Series is a versatile, compact, high-capacity direct-operated regulator capable
of solving the toughest pressure control applications. Typical applications include
instrument air supply for large actuators, test fixtures, and general pneumatic supply. The
regulator is available with differential pressure control, high temperature, and
high-pressure optional constructions.
Pressure Reducing
67C Series
Body Size NPS 1/4
Outlet Pressure Range 0 to 150 psig / 0 to 10.3 bar
Maximum Inlet
Pressure 400 psig / 27.6 bar
Maximum Capacity 4350 SCFH / 117 Nm3/h
Operation Method Direct-Operated
Body Material Aluminum and Stainless Steel
Bulletin No. 71.1:67C
The 67C Series is a compact, high accuracy instrument air regulator designed for use
with today’s digital valve controllers. The unit is available with a 5 or 40 micron filter for
protection of the instrument being supplied. The Smart Bleed™ option and leak proof
internal relief minimize loss of supply air improving system integrity.  Other options 
include outlet gauge, high and low temperature, and panel mounting.
Relief/Backpressure
MR98 Series
Body Size NPS 1/4, 1/2, 3/4, 1, 1-1/2, and 2 /
DN 15, 20, 25, 40, and 50
Relief Pressure Range 2 to 375 psig /
0.14 to 25.9 bar
Maximum Inlet
Pressure 400 psig / 27.6 bar
Maximum Capacity 206,000 SCFH / 5510 Nm3/h
Operation Method Direct-Operated
Body Material Cast Iron, Steel, Stainless Steel,
Hastelloy® C, and Monel®
Bulletin No. 71.4:MR98
The MR98 Series is used in a variety of process gas backpressure and relief applications
including corrosive gases and cryogenic applications. The unit is available with a remote
control line, differential pressure control and high-pressure optional constructions.
11
Pressure Reducing
1301 Series
Body Size NPS 1/4
Outlet Pressure Range 10 to 500 psig / 0.69 to 34.5 bar
Maximum Inlet Pressure 6000 psig / 414 bar
Maximum Capacity 4500 SCFH / 121 Nm3/h
Operation Method Direct-Operated
Body Material Brass and Stainless Steel
Bulletin No. 71.1:1301
The 1301 Series regulators are high-pressure regulators designed to reduce supply
pressure of instrument air supply regulators and pilots. The units have options for spring
case with tapped vents and adjusting screw closing cap.
Pressure Reducing
67D Series
Body Size NPS 1/2 / DN 15
Outlet Pressure Range 0 to 150 psig / 0 to 10.3 bar
Maximum Inlet Pressure 400 psig / 27.6 bar
Maximum Capacity 20,900 SCFH / 560 Nm3/h
Operation Method Direct-Operated
Body Material Aluminum and Stainless Steel
Bulletin No. 71.1:67D
The 67D Series regulators are typically used to deliver constant reduced pressure of
gaseous fluids to pilot-operated controllers and other pneumatic instrumentation.
Pressure Reducing
627 Series
Body Size NPS 3/4, 1, and 2 /
DN 20, 25, and 50
Outlet Pressure Range 5 to 500 psig / 0.34 to 34.5 bar
Maximum Inlet Pressure 2000 psig / 138 bar
Maximum Capacity 162,000 SCFH / 4342 Nm3/h
Operation Method Direct-Operated
Body Material Ductile Iron, Steel, and
Stainless Steel
Bulletin No. 71.1:627
The 627 Series direct-operated pressure reducing regulators are for low and
high-pressure systems. Typical air applications include high-capacity air supply to large
valve actuators.
Relief/Backpressure
63EG Series
Body Size
NPS 1, 2, 3, 4, 6, and 8 x 6 /
DN 25, 50, 80, 100, 150, and
200 x 150
Outlet Pressure
Range
10 to 400 psig /
0.69 to 27.6 bar
Maximum Inlet
Pressure 400 psig / 27.6 bar
Maximum Capacity 8,795,000 SCFH /
235,706 Nm3/h
Operation Method Pilot-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Bulletin No. 71.4:63EG
The 63EG Series is a compact, fast response, high accuracy backpressure / relief valve
which is suitable for gas or liquid service. The valve's design allows easy maintenance and
is available with noise reducing trim.
Steam
12
Steam is used throughout industries for
process and space heating. Within the process
industries, steam is used in oil refineries; pulp
and paper mills; chemical production, such
as ethylene and ammonia; food and grain
processing; and textiles.
Refineries and chemical plants use steam tracing
to reduce pumping costs of viscous material
and prevent freezing of process piping.  Steam is 
used for heat exchangers and reactors to assist
or create process chemical or thermal reactions.
Paper  mills  utilize  major  steam  generation 
systems to generate power and to dry paper
products. Steam is widely used for district
energy systems found in major municipalities
and central plants of universities and hospitals.
To  minimize  piping  cost,  steam  is  generated 
and distributed at much higher pressures and
temperatures than required by the process
load. Fisher®  regulators  are  utilized  in  these 
applications to reduce the steam pressure to a
usable level and to accurately maintain process
fluid temperatures.
* Maximum temperature limitation may vary according to body and construction materials.
Please refer to the product Bulletin or local Sales Office for further information.
• High Turndown
• Rugged Construction
• Noise Reduction
• Low Maintenance
• Accurate
• Reliable
• Long Service Life
Pressure Reducing
Type 92B
Body Size NPS 1, 1-1/2, 2, 3, and 4 /
DN 25, 40, 50, 80, and 100
Outlet Pressure Range 2 to 250 psig /
0.14 to 17.2 bar
Maximum Inlet
Pressure 300 psig / 20.7 bar
Maximum Temp
Capacity 600°F / 316°C*
Maximum Capacity 42,400 lbs/h /
19,234 kg/h
Operation Method Pilot-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Bulletin No. 71.2:92B
The Type 92B regulator is ideal for use as a main Pressure Reducing Valve in industrial
process heating applications such as heat exchangers, evaporators, digesters, and
reactors. Commercial applications include district energy systems and hot water
heat exchangers.
Pressure Reducing
Type 92S
Body Size
NPS 1, 1-1/2, 2, 2-1/2, 3, 4, and
6 × 4 / DN 25, 40, 50, 65, 80,
100, and 150 x 100
Outlet Pressure
Range
2 to 250 psig /
0.14 to 17.2 bar
Maximum Inlet
Pressure 300 psig / 20.7 bar
Maximum Temp
Capacity 650°F / 343°C*
Maximum
Capacity 45,100 lbs/h / 20,457 kg/h
Operation
Method Pilot-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Bulletin No. 71.2:92S
The Type 92S regulator is piston actuated for high cycle steam service with hardened trim
for improved durability. This valve should be used with clear, dry, or superheated steam.
Noise reduction trim is available.
13
* Maximum temperature limitation may vary according to body and construction materials.
Please refer to the product Bulletin or local Sales Office for further information.
Pressure Reducing
Type SR5
Body Size
NPS 1/2, 3/4, 1, 1-1/2 x 1, 1-1/2,
2, and 3 / DN 15,20, 25, 40 x 25,
40, 50, and 80
Outlet Pressure Range 2 to 135 psig / 0.14 to 9.3 bar
Maximum Inlet Pressure 210 psig / 14.5 bar
Maximum Temp
Capacity 400°F / 204°C*
Maximum Capacity 6820 lbs/h / 3096 kg/h
Operation Method Direct-Operated
Body Material 316L Stainless Steel,
20 μin / 0.5 μm Ra
Bulletin No. 71.1:SR5
The Type SR5 regulator is a compact, large capacity, direct-operated pressure reducing
regulator. It is designed for use in applications where a sanitary design is essential, such as
pharmaceutical, biotech, or food and beverage industries. A backpressure regulator is also
available in Type SR8.
Pressure Reducing
Type 92C
Body Size NPS 1/2, 3/4, and 1 /
DN 15, 20, and 25
Outlet Pressure Range 5 to 250 psig /
0.34 to 17.2 bar
Maximum Inlet Pressure 300 psig / 20.7 bar
Maximum Temp Capacity 650°F / 343°C*
Maximum Capacity 3600 lbs/h / 1633 kg/h
Operation Method Pilot-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Bulletin No. 71.2:92C
The Type 92C regulator is an economical cast iron, steel, or stainless steel pilot-operated
pressure reducing used in steam, liquid, or hot air service. Its compact design and
high-capacity make it ideal for packaged skid systems.
Pressure Reducing
MR95 Series
Body Size NPS 1/4, 1/2, 3/4, 1, 1-1/2, and 2 /
DN 15, 20, 25, 40, and 50
Outlet Pressure Range 2 to 400 psig /
0.14 to 27.6 bar
Maximum Inlet
Pressure 1000 psig / 68.9 bar
Maximum Temp
Capacity 650°F / 343°C*
Maximum Capacity 17,000 lbs/h / 7600 kg/h
Operation Method Direct-Operated
Body Material Cast Iron, Steel, Stainless Steel,
Hastelloy® C, and Monel®
Bulletin No. 71.1: MR95
The MR95 Series is a versatile, compact, high-capacity direct-operated regulator capable
of the toughest pressure control applications. Typical applications include fuel oil steam
atomization, superheated steam, boiler feed water, steam tracing, and sterilizers.  
Relief/Backpressure
MR98 Series
Body Size NPS 1/4, 1/2, 3/4, 1, 1-1/2, and 2 /
DN 15, 20, 25, 40, and 50
Relief Pressure Range 2 to 375 psig /
0.14 to 25.9 bar
Maximum Inlet
Pressure 400 psig / 27.6 bar
Maximum Temp
Capacity 450°F / 232°C*
Maximum Capacity 7300 lbs/h / 3300 kg/h
Operation Method Direct-Operated
Body Material Cast Iron, Steel, Stainless Steel,
Hastelloy® C, and Monel®
Bulletin No. 71.4:MR98
The MR98 Series is used in a variety of steam backpressure/relief applications, such as
power generation, heating and cooling systems, and process system. The unit is available
with differential pressure control and high-pressure optional constructions.
Tank Blanketing, or padding, is the process and
practice of covering the surface of a stored
commodity, usually a liquid, with an inert gas. If
that commodity is volatile or toxic, tank blanketing
can prevent it from harming workers, equipment,
and the environment. When the commodity is a
food or other substance, blanketing protects it from
oxidation or contamination through exposure to air
or moisture. In most cases, tank blanketing gas is
pure, dry nitrogen.
Blanketing can prevent liquids from vaporizing into 
the atmosphere and can maintain the tank’s vapor
space above a flammable or combustible liquid to
reduce potential ignition while pumping. It can
make up the volume of liquid displaced in or out of
a tank, or it can make up volume caused by thermal
changes of the tank’s contents, preventing the
creation of a vacuum or excess operating pressure
that could damage the tank.
Vapor recovery systems are mainly used to prevent
toxic vapors from escaping into the atmosphere.
When adding liquid to the tank or when the outside
temperature rises, causing the vapor inside the tank
to expand, the vapor recovery system senses the
increase in tank pressure and vents the excessive
tank pressure to a vapor recovery system.
14
• Fully Balanced System
• High-Capacity
• High Sensitivity
• Tight Shutoff
• Low Setpoints
• In-line Maintenance
• Broad Material Selection
Tank Blanketing
T205 Series
Body Size NPS 3/4 and 1 /
DN 20 and 25
Control Pressure Range 1-inch w.c. to 7 psig /
2 mbar to 0.48 bar
Maximum Inlet Pressure 200 psig / 13.8 bar
Flow up to 12,919 SCFH /
346.2 Nm3/h of Nitrogen
Operation Method Direct-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Bulletin No. 74.1:T205
The T205 Series is a compact tank blanketing regulator ideal for blanketing small tanks
and vessels. The unit is easy to install and to maintain.
For larger applications, the Type Y692 is available in NPS 1-1/2 and 2 / DN 40 and 50 sizes.
Tank Blanketing
Type T205B
Body Size NPS 3/4 and 1 /
DN 20 and 25
Control Pressure Range 2-inches w.c. to 7 psig /
5 mbar to 0.48 bar
Maximum Inlet
Pressure 200 psig / 13.8 bar
Flow up to 18,568 SCFH /
498 Nm3/h of Nitrogen
Operation Method Direct-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Bulletin No. 74.1:T205B
The Type T205B balanced tank blanketing regulator is a direct-operated regulator with
fully balanced plug design to reduce inlet pressure sensitivity and with a large diaphragm
to accurately control tank pressure at low pressure settings on tank blanketing systems.
Vapor Recovery
T208 Series
Body Size NPS 3/4 and 1
DN 20 and 25
Control Pressure Range 2-inches w.c. to 7 psig /
5 mbar to 0.48 bar
Maximum Inlet Pressure 75 psig / 5.2 bar
Flow up to 2286 SCFH /
61.3 Nm3/h of Nitrogen
Operation Method Direct-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Bulletin No. 74.2:T208
The T208 Series is ideal for small vapor recovery systems.  The unit may also be utilized as 
a backpressure or relief valve. A larger NPS 1-1/2 and 2 DN 40 and 50 units are available in
the Type Y696.
Tank Blanketing
15
Tank Blanketing
ACE95 Series
Body Size NPS 3/4, 1, 1 x 2, and 2 /
DN 20, 25, 25 x 50, and 50
Control Pressure
Range
-5-inch w.c. to 1.5 psig /
-12 mbar to 0.10 bar
Maximum Inlet
Pressure 200 psig / 13.8 bar
Body Orientation In-line or Angle
Flow up to 499,600 SCFH /
13,390 Nm3/h of Nitrogen
Operation Method Pilot-Operated
Body Material Stainless Steel
Bulletin No. 74.1:ACE95
The ACE95 Series is ideal for accurate pressure control on low-pressure blanketing
systems.  The oversized actuator offers high sensitivity to changes in tank pressure and 
high accuracy to pressure control.  The ACE97 Series utilizes a single pilot to control both 
the tank blanketing and vapor recovery minimizing the issues with overlapping setpoints. 
Tank Blanketing
Type Y692
Body Size NPS 1-1/2 and 2 /
DN 40 and 50
Control Pressure Range 1-inch w.c. to 10 psig /
2 mbar to 0.69 bar
Maximum Inlet
Pressure 150 psig / 10.3 bar
Body Orientation In-line or Angle
Flow up to 19,820 SCFH /
531 Nm3/h of Nitrogen
Operation Method Direct-Operated
Body Material Cast Iron, WCC Steel, and
Stainless Steel
Bulletin No. 74.1:Y692
The Type Y692 is a direct-operated regulator used for accurate pressure control on very
low-pressure blanketing systems. The downstream pressure is sensed directly by the
diaphragm through the pitot tube providing quick response. Large diaphragm areas
provide more precise control even at low-pressure settings and the pilot tube also creates
a dynamic boost that helps provide greater capacity.
Tank Blanketing
Type 1190
Body Size
NPS 1, 2, 3, 4, 6, 8 x 6, and 12 x 6 /
DN 25, 50, 80, 100, 150,
200 x 150, and 300 x 150
Control Pressure
Range
0.25-inch w.c. to 7 psig /
0.6 mbar to 0.48 bar
Maximum Inlet
Pressure 400 psig / 27.6 bar
Flow up to 2,811,000 SCFH /
75,335 Nm3/h of Nitrogen
Operation
Method Pilot-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Bulletin No. 74.1:1190
The Type 1190 provides very accurate pressure control on low-pressure blanketing
systems. The regulator helps to control emissions and provides protection against any
contamination from atmospheric conditions.
Vapor Recovery
Type 1290
Body Size
NPS 1, 2, 3, 4, 6, 8 x 6, 12 x 6 /
DN 25, 50, 80, 100, 150,
200 x 150, and 300 x 150
Control Pressure
Range
0.5-inch w.c. to 7 psig /
1 mbar to 0.48 bar
Maximum Inlet
Pressure 12.5 psig / 0.86 bar
Flow up to 327,400 SCFH /
8774 Nm3/h of Nitrogen
Operation
Method Pilot-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Bulletin No. 74.2:1290
The Type 1290 vapor recovery valve is a very accurate high-capacity which monitors
the tank vapor pressure and opens when the tank pressure increases above the desired
setpoint. The unit is ideal for use with vapor recovery systems because it is not affected by
changes in pressure of the recovery system.
Tank Blanketing
Type Y693
Body Size NPS 1-1/2 and 2 /
DN 40 and 50
Control Pressure Range 0.5-inch w.c. to 10 psig /
1 mbar to 0.69 bar
Maximum Inlet Pressure 150 psig / 10.3 bar
Flow up to 26,700 SCFH /
716 Nm3/h of Nitrogen
Operation Method Direct-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Bulletin No. 74.1:Y693
The Type Y693 utilizes a balanced trim design and large diaphragm area to provide 
the accuracy of a pilot-operated regulator in a direct-operated design. The design also
provides minimal hysteresis and low inlet pressure sensitivity.
Any substance that is capable of flowing or of
being poured is known as a liquid. One of the
most common liquids that we come in contact
with on a daily basis is water. Other liquids
include detergents, paints, aqueous chemicals,
fuels, and oil.
Liquids differ from gases as they are
incompressible and viscous. Because of these
characteristics, special consideration must be
given when selecting a regulator. All regulator
parts that touch the fluid must be compatible
with the fluid. The regulator design may require
modifications or special materials.
16
Pressure Reducing
Type MR105
Body Size NPS 1, 2, 3, and 4 /
DN 25, 50, 80, and 100
Outlet Pressure Range 5 to 300 psig /
0.34 to 20.7 bar
Maximum Inlet Pressure 400 psig / 276 bar
Maximum Capacity 1650 gpm / 6240 l/min
Operation Method Direct-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Maximum Temp Capability 250°F / 121°C*
Bulletin No. 71.1:MR105
The Type MR105 is fast-response, high-capacity, direct-operated multi-purpose regulator
designed to handle different applications and flow media. It is available in linear and quick
opening trim cages and is designed to meet API 614 as required by lube oil manufacturers.
Relief/Backpressure
Type 63EG-98HM
Body Size NPS 2, 3, 4, 6, and 8 × 6 / DN 50,
80, 100, 150 and 200 x 150
Relief Pressure Range 15 to 375 psig / 1.0 to 25.9 bar
Maximum Inlet
Pressure 450 psig / 31.0 bar
Maximum Capacity 4900 gpm / 18,547 l/min
Operation Method Pilot-Operated
Body Material Steel, Stainless Steel, Hastelloy®
C, Monel®, and Alloy 20
Bulletin No. 71.4: 63EG-98HM
The Type 63EG-98HM is a compact, fast response, high accuracy relief valve/backpressure
which is suitable for gas or liquid service. The valve's design makes it ideal for pump
recirculation especially in skid packages where space is limited. Available constructions
include units suitable for sea water applications.
Pressure Reducing
Type 92W
Body Size NPS 1, 1-1/2, 2, 2-1/2, 3, and 4 /
DN 25, 40, 50, 65, 80, and 100
Outlet Pressure Range 2 to 250 psig /
0.14 to 17.2 bar
Maximum Inlet
Pressure 300 psig / 20.7 bar
Maximum Capacity 960 gpm / 3720 l/min
Operation Method Pilot-Operated
Body Material Cast Iron and Steel
Bulletin No. 71.2:92W
The Type 92W regulator is piston actuated for high cycle liquid service. The design
utilizes hardened stainless steel trim for durability. 
Relief/Backpressure
Type MR108
Body Size NPS 1, 2, 3, and 4 /
DN 25, 50, 80, and 100
Backpressure Control
Range 5 to 300 psig / 0.34 to 20.7 bar
Maximum Inlet Pressure 400 psig / 27.6 bar
Maximum Capacity 1460 gpm / 5530 l/min
Operation Method Direct-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Maximum Temp Capability 250°F / 121°C*
Bulletin No. 71.4:MR108
The Type MR108 regulators are direct-operated, backpressure, high-capacity, multi-
purpose regulators. It provides a simple, reliable, and economical backpressure control
in multi-purpose applications suitable for different flow media including liquid, air, and
gas. Applications include lube oil systems and any application where speed of response is
critical, minimum differential pressure is a requirement, or fluid is not free of impurities.
• Highest Quality Construction
• Best Product Selection
• Large Turndown Ratios
• Excellent Fluid Capability
• Quick and Easy Maintenance
• Application Experience
Liquid
* Maximum temperature limitation may vary according to body and construction materials.
Please refer to the product Bulletin or local Sales Office for further information.
17
Pressure Reducing
MR95 Series
Body Size NPS 1/4, 1/2, 3/4, 1, 1-1/2, and 2 /
DN 15, 20, 25, 40, and 50
Outlet Pressure
Range 2 to 400 psig / 0.14 to 27.6 bar
Maximum Inlet
Pressure 1000 psig / 68.9 bar
Maximum Capacity 397 gpm / 1500 l/min
Operation Method Direct-Operated
Body Material Cast Iron, Steel, Stainless Steel,
Hastelloy® C, and Monel®
Bulletin No. 71.1:MR95
The MR95 Series is a versatile, compact, high-capacity direct-operated regulator capable
of solving the toughest pressure control applications. Typical applications include fuel oil
steam atomization, sea water, fire water systems, and boiler feed water.  The regulator 
is available with differential pressure control, high temperature, and high-pressure
optional constructions.
Relief/Backpressure
MR98 Series
Body Size NPS 1/4, 1/2, 3/4, 1, 1-1/2, and 2 /
DN 15, 20, 25, 40, and 50
Relief Pressure Range 2 to 375 psig /
0.14 to 25.9 bar
Maximum Inlet
Pressure 400 psig / 27.6 bar
Maximum Capacity 300 gpm / 1150 l/min
Operation Method Direct-Operated
Body Material Cast Iron, Steel, Stainless Steel,
Hastelloy® C, and Monel®
Bulletin No. 71.4:MR98
The MR98 Series is used in a variety of liquid relief/backpressure applications, such as
pump recirculation, lube oil skids, heating and cooling systems, and process system. The
unit is available with a remote control line, differential pressure control and high-pressure
optional constructions.
Pressure Reducing
Type 1098-EGR
Body Size
NPS 1, 2, 3, 4, 6, 8 x 6, and 12 x 6 /
DN 25, 50, 80, 100, 150, 200 x
150, and 300 x 150
Outlet Pressure
Range
4 inches w.c. to 300 psig /
10 mbar to 20.7 bar
Maximum Inlet
Pressure 400 psig / 27.6 bar
Maximum Capacity 11,934 gpm / 45,170 l/min
Operation Method Pilot-Operated
Body Material Cast Iron, Steel, Stainless Steel
Bulletin No. 71.2:1098-EGR
The Type 1098 regulators are capable of providing accurate, fast response, and
high-capacities in low-pressure drop systems. Typical applications include: inert gas and
plant air headers.
Pressure Reducing
Type LR125
Body Size NPS 1, 2, 3, 4 /
DN 25, 50, 80, and 100
Outlet Pressure Range 15 to 150 psig / 1 to 10.3 bar
Maximum Inlet Pressure 300 psig / 20.7 bar
Maximum Capacity 2052 gpm / 7769 l/min
Operation Method Pilot-Operated
Body Material WCC Steel, CF8M or
CF3M Stainless Steel
Maximum Temp Capacity 250°F / 121°C*
Bulletin No. 71.2:LR125
The Type LR125 pilot-operated, pressure reducing regulator is designed for liquid industrial/
commercial applications. The Type LR125 provides smooth operation, tight shutoff and
long life, even in dirty service. Its internally actuated metal plug eliminates disadvantages
associated with boot-style regulators, and the specially engineered flow path deflects debris,
protecting the seat from damage and erosion. The Type LR125 is used in conjunction with
a Type 95H pilot and Type 112 restrictor. An internal inlet strainer prevents large particles
from entering the main valve, limiting damage to internal parts.
Relief/Backpressure
Type LR128
Body Size NPS 1, 2, 3, and 4 /
DN 25, 50, 80, and 100
Outlet Pressure Range 35 to 375 psig / 2.4 to 25.9 bar
Maximum Inlet Pressure 450 psig / 31.0 bar
Maximum Capacity 3368 gpm / 12,748 l/min
Operation Method Pilot-Operated
Body Material WCC Steel, CF8M or CF3M
Stainless Steel
Maximum Temp Capacity 250°F / 121°C*
Bulletin No. 71.2:LR128
The Type LR128 pilot-operated, relief/backpressure regulator is designed for liquid industrial/
commercial applications. The Type LR128 provides smooth operation, tight shutoff and
long life, even in dirty service. Its internally actuated metal plug eliminates disadvantages
associated with boot-style regulators, and the specially engineered flow path deflects debris,
protecting the seat from damage and erosion. The Type LR128 is used in conjunction with
a Type 95HM pilot and Type 112 restrictor. An internal inlet strainer prevents large particles
from entering the main valve, limiting damage to internal parts.
Pressure Reducing
Type 75A
Body Size
NPS 1/2, 3/4, 1, 1-1/2, 2, and
2-1/2 / DN 15, 20, 25, 40, 50,
and 65
Outlet Pressure Range 20 to 80 psig /
1.4 to 5.5 bar
Maximum Inlet Pressure 200 psig / 13.8 bar
Maximum Capacity 260 gpm / 984 l/min
Operation Method Direct-Operated
Body Material Bronze
Maximum Temp Capacity 150°F / 66°C*
Bulletin No. 71.1:75A
The 75A regulator is designed to reduce domestic or industrial water pressure, thus
protecting plumbing fixtures and meters from high pressure surges. Type 75A is self-
contained, requiring no external control line for operation. Downstream pressure is
directly registered under the diaphragm. As the downstream pressure increases, the
diaphragm force overcomes the spring compression, causes the valve disk to rise, and
reduces flow through the regulator.
* Maximum temperature limitation may vary according to body and construction materials.
Please refer to the product Bulletin or local Sales Office for further information.
Gases are used in chemical and industrial
processes, such as analytical instrumentation,
environmental compliance, electronic
manufacturing, chemical production,
reference gases, and medical uses. All the
devices in these systems must be compatible
to prevent complications, such as corrosion,
unwanted chemical reactions, ignition, or
explosion. Also, some of these process systems
operate at very high or very low temperatures.
Regulators must be constructed to withstand
these temperatures.
The regulators and relief/backpressure
regulators covered in this section are available
in materials that are chemically compatible
with most process gases. The products shown
in the Air, Liquids, and Sanitary sections may
also be used in your system if the materials
are compatible.
18
• Fully Balanced System
• High-Capacity
• High Sensitivity
• Tight Shutoff
• Low Setpoints
• In-line Maintenance
• Broad Material Selection
Process Gas
Pressure Reducing
Type 1098-EGR
Body Size
NPS 1, 2, 3, 4, 6, 8 x 6, and 12 x 6 /
DN 25, 50, 80, 100, 150,
200 x 150, 300 x150
Outlet Pressure
Range
4 inches w.c. to 300 psig /
10 mbar to 20.7 bar
Maximum Inlet
Pressure 400 psig / 27.6 bar
Maximum Capacity 11,331,000 SCFH /
303,671 Nm3/h
Operation Method Pilot-Operated
Body Material Cast Iron, Steel, Stainless Steel
Bulletin No. 71.2:1098-EGR
The Type 1098 regulators are capable of providing accurate, fast response, and
high-capacities in low-pressure drop systems. Typical applications include: inert gas and
plant air headers.
Pressure Reducing
MR95 Series
Body Size NPS 1/4, 1/2, 3/4, 1, 1-1/2, and 2 /
DN 15, 20, 25, 40, and 50
Outlet Pressure Range 2 to 400 psig / 0.14 to 27.6 bar
Maximum Inlet
Pressure 1000 psig / 68.9 bar
Maximum Capacity 510,000 SCFH / 13,668 Nm3/h
Operation Method Direct-Operated
Body Material Cast Iron, Steel, Stainless Steel,
Hastelloy® C, and Monel®
Bulletin No. 71.1: MR95
The MR95 Series is a versatile, compact, high-capacity direct-operated regulator capable
of solving the toughest pressure control applications. Possible applications include
oxygen systems, inert gas systems, and corrosive gas service. The regulator is available
with cryogenic materials, differential pressure control, high temperature, and high-
pressure optional constructions.
19
Relief/Backpressure
T208 Series
Body Size NPS 3/4 and 1 /
DN 20 and 25
Control Pressure Range 2-inches w.c. to 7 psig /
5 mbar to 0.48 bar
Maximum Inlet Pressure 75 psig / 5.2 bar
Maximum Capacity 2286 SCFH / 61.3 Nm3/h
Operation Method Direct-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Bulletin No. 74.2:T208
The T208 Series is ideal for relief or backpressure applications in small systems. The unit
may also be utilized as a vapor recovery valve.  A larger NPS 1-1/2 and 2 / DN 40 and 50 
unit is available in the Type Y696.
Pressure Reducing
T205 Series
Body Size NPS 3/4 and 1 /
DN 20 and 25
Control Pressure Range 1-inch w.c. to 7 psig /
2 mbar to 0.48 bar
Maximum Inlet Pressure 200 psig / 13.8 bar
Maximum Capacity 2468 SCFH /
346.2 Nm3/h
Operation Method Direct-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Bulletin No. 71.1:T205
The T205 Series is a compact regulator idea for accurate control of low-pressure systems.
The unit is easy to install and maintain. For larger applications the Type Y692 is available in
NPS 1-1/2 and 2 / DN 40 and 50 sizes.
Vacuum Breaker
T205VB Series
Body Size NPS 3/4 and 1 /
DN 20 and 25
Control Pressure Range 0 to 5 psig /
0 to 0.35 bar vacuum
Maximum Inlet Pressure 200 psig / 13.8 bar
Maximum Capacity 2468 SCFH / 66.1 Nm3/h
Operation Method Direct-Operated
Body Material Cast Iron, Steel, and
Stainless Steel
Bulletin No. 71.3:T205VB
The T205VB Series vacuum breaker provides accurate vacuum protection with its large
diaphragm area. An external registration option is available for systems requiring a control
line. The Y692VB Series is available for larger systems needing a NPS 1-1/2 or 2 / DN 40 or
50 unit. For Vacuum Regulator applications, the T208VR and Y696VR Series are available.
Relief/Backpressure
MR98 Series
Body Size NPS 1/4, 1/2, 3/4, 1, 1-1/2, and 2 /
DN 15, 20, 25, 40, and 50
Relief Pressure Range 2 to 375 psig /
0.14 to 25.9 bar
Maximum Inlet
Pressure 400 psig / 27.6 bar
Maximum Capacity 206,000 SCFH / 5510 Nm3/h
Operation Method Direct-Operated
Body Material Cast Iron, Steel, Stainless Steel,
Hastelloy® C, and Monel®
Bulletin No. 71.4:MR98
The MR98 Series is used in a variety of process gas backpressure and relief applications
including corrosive gases and cryogenic applications. The unit is available with a remote
control line, differential pressure control and high-pressure optional constructions.
Fuel Gas
Natural gas (methane) is a clean-burning fuel
gas used for many residential, commercial, and
industrial applications. This colorless, naturally
occurring gas can be found in many countries
around the world.
For industrial applications, natural gas is used
as a feedstock for making chemicals, such as
anhydrous ammonia, and as a fuel for boilers
and furnaces.
20
• High speed response
• High-Capacity
• Flexibility
• Control Accuracy
• Easy Maintenance
• Safe Operation
Pressure Reducing
Type 310A
Body Size
NPS 1, 2, 3, 4, and 4 x 6 /
DN 25, 50, 80, 100, and
100 x 150
Outlet Pressure
Range
10 to 700 psig /
0.69 to 48.3 bar
Maximum Inlet
Pressure 1500 psig / 103 bar
Maximum Capacity 21,170,000 SCFH /
567,356 Nm3/h
Operation Method Pilot-Operated
Body Material WCC Steel
Bulletin No. 71.2:310A
The Type 310A pilot-operated high-pressure regulator is used where high-capacity , fast
response, and accurate control are essential. Typical applications include turbine startup
and power plant fuel supply.
Pressure Reducing
Type EZR
Body Size
NPS 1, 1-1/4 x 1, 2 x 1, 2, 3,
4, 6, and 8 / DN 25, 32 x 25,
50 x 25, 50, 80, 100, 150,
and 200
Outlet Pressure
Range
6-inches w.c. to 1000 psig /
15 mbar to 69.0 bar
Maximum Inlet
Pressure 1500 psig / 103 bar
Maximum Capacity 26,138,000 SCFH /
700,498 Nm3/h
Operation Method Pilot-Operated
Body Material Cast Iron and WCC or
LCC Steel
Bulletin No. 71.2:EZR
The Type EZR pilot-operated, pressure reducing regulator is designed for natural gas
transmission/distribution systems and industrial/commercial applications. The Type EZR
provides smooth, quiet operation, and tight shutoff.
Pressure Reducing
Y600A Series
Body Size NPS 3/4 and 1 /
DN 20 and 1
Outlet Pressure Range 4-inches w.c. to 7 psig /
10 mbar to 0.48 bar
Maximum Inlet
Pressure 150 psig / 10.3 bar
Maximum Capacity 6660 SCFH /
178 Nm3/h of Natural Gas
Operation Method Direct-Operated
Body Material Cast Iron
Bulletin No. 71.1:Y600A
Y600A Series direct-operated, spring-loaded regulators provide economical pressure-
reducing control for a variety of residential, commercial, and industrial applications.
The large diaphragm area provides more accurate control at low-pressure settings.
The pitot tube of regulators also creates a dynamic boost that helps provide
greater capacity.
21
Pressure Reducing
Type 1098-EGR
Body Size
NPS 1, 2, 3, 4, 6, 8 x 6, and 12 x 6 /
DN 25, 50, 80, 100, 150, 200 x
150, and 300 x 150
Outlet Pressure Range 4 inches w.c. to 300 psig /
10 mbar to 20.7 bar
Maximum Inlet Pressure 400 psig / 27.6 bar
Maximum Capacity 11,331,000 SCFH /
303,671 Nm3/h
Operation Method Pilot-Operated
Body Material Cast Iron, Steel, Stainless Steel
Bulletin No. 71.2:1098-EGR
The Type 1098 regulators are capable of providing accurate, fast response and
high-capacities in low-pressure drop systems. Typical applications include: natural gas
distribution systems; fuel gas supply to industrial boilers, furnaces, ovens, and mixers; and
large commercial/industrial establishments.
Pressure Reducing
Type 99
Body Size NPS 2 / DN 50
Outlet Pressure
Range
2-inches w.c. to 100 psig /
5 mbar to 6.9 bar
Maximum Inlet
Pressure 1000 psig / 69.0 bar
Maximum Capacity 265,000 SCFH / 7102 Nm3/h
Operation Method Pilot-Operated
Body Material Cast Iron and Steel
Bulletin No. 71.2:99
The Type 99 regulator is ideal for systems requiring accurate pressure control and fast
response. Typical applications include fuel supply to industrial boiler, gas engines,
furnaces, ovens, industrial burners, and dryers.
Pressure Reducing
EZH and EZHSO Series
Body Size NPS 1, 2, 3, and 4 /
DN 25, 50, 80, and 100
Outlet Pressure Range 14.5 to 1160 psig /
1 to 80.0 bar
Maximum Inlet Pressure 1500 psig / 103 bar
Maximum Capacity 13,833,000 SCFH /
370,724 Nm3/h
Operation Method Pilot-Operated
Body Material Steel
Bulletin No. 71.2:EZH and EZHSO
The EZH and EZHSO Series regulators are accurate pilot-operated, pressure balanced, and
soft seated regulators. They are designed for use in large capacity distribution systems
and power plant feeds. They provide smooth, reliable operation, tight shutoff, and
long life.
Pressure Reducing
133 Series
Body Size NPS 2 / DN 50
Outlet Pressure
Range
2-inches w.c. to 60 psig /
5 mbar to 4.1 bar
Maximum Inlet
Pressure 150 psig / 10.3 bar
Maximum Capacity 170,000 SCFH / 4556 Nm3/h
Operation Method Direct-Operated
Body Material Cast Iron and Steel
Bulletin No. 71.1:133
The 133 Series is a high-capacity regulator with fast response ideal for snap-acting boiler
applications. The nit’s balanced trim design enables the regulator to provide accurate
control of gas pressure for maximum combustion efficiency despite varying inlet
pressure conditions.
Regulator Tips
22
All regulators should be installed and used in accordance with federal, state, and local codes and regulations.
PRESSURE
•  Adequate  overpressure  protection  should  be  installed 
to protect the regulator from overpressure. Adequate
overpressure protection should also be installed to
protect all downstream equipment in the event of
regulator failure.
•  Downstream  pressures  significantly  higher  than  the 
regulator’s pressure setting may damage soft seats and
other internal parts.
•  When a regulator appears unable to pass the published 
flow rate, be sure to check the inlet pressure measured
at the regulator body inlet connection. Piping up to
and away from regulators can cause significant flowing
pressure losses.
•  When adjusting setpoint, the regulator should be flowing 
at least five percent of the normal operating flow.
•  Droop is the reduction of outlet pressure experienced by 
pressure reducing regulators as the flow rate increases. It
is stated as a percent, in inches of water column (mbar)
or in pounds per square inch (bar) and indicates the
difference between the outlet pressure setting made
at low flow rates and the actual outlet pressure at the
published maximum flow rate. Droop is also called offset
or proportional band.
•  Downstream  pressure  always  changes  to  some  extent 
when inlet pressure changes.
•  A disk with a cookie cut appearance probably means you 
had an overpressure situation. Thus, investigate further.
SPEED OF RESPONSE AND ACCURACY
•  If two or more available springs have published pressure 
ranges that include the desired pressure setting, use the
spring with the lower range for better accuracy.
•  Direct-operated regulators generally have faster response 
to quick flow changes than pilot-operated regulators.
•  Speed of regulator response, in order: 
- Direct-operated
- Two-path pilot-operated
- Unloading pilot-operated
- Control valve
Note: Although direct-operated regulators give the fastest
response, all types provide quick response.
•  The  full  advertised  range  of  a  spring  can  be  utilized 
without sacrificing performance or spring life.
SIZING
•  The recommended selection for orifice diameters is  the 
smallest orifice that will handle the flow.
•  Regulator body size should never be larger than the pipe 
size.  In many cases, the regulator body is one size smaller 
than the pipe size.
•  Do  not  oversize  regulators.    Pick  the  smallest  orifice 
size  or  regulator  that  will  work.    Keep  in  mind  when 
sizing  a  station  that  most  restricted  trims  that  do  not 
reduce the main port size do not help with improved low 
flow control.
•  Most  soft-seated  regulators  will  maintain  the  pressure 
within  reasonable  limits  down  to  zero  flow.    Therefore, 
a  regulator  sized  for  a  high  flow  rate  will  usually  have 
a turndown ratio sufficient to handle pilot-light loads
during off cycles.
•  Do not undersize the monitor set.  It is important to realize 
that the monitor regulator, even though it is wide-open,
will require pressure drop for flow. Using two identical
regulators in a monitor set will yield approximately
70 percent of the capacity of a single regulator.
TEMPERATURE
•  Most  regulators  shown  in  this  handbook  are  generally 
suitable for temperatures to 180°F / 82°C. With high
temperature Fluorocarbon (FKM) (if available), the
regulators can be used for temperatures to 300°F /
149°C. Check the temperature capabilities to determine
materials and temperature ranges available. Use stainless
steel diaphragms and seats for higher temperatures, such
as steam service.
•  For every 15 psid / 1.0 bar, differential pressure differential 
across the regulator, expect approximately one degree
drop in gas temperature due to the natural refrigeration
effect.    Freezing  is  often  a  problem  when  the  ambient 
temperature is between 30°F / -1°C and 45°F / 7°C.
www.fisherregulators.com
23
Regulator Tips (continued)
For more Regulator Tips, turn to page 664 of the Industrial Application Guide Edition VI or log-on to www.fisherregulators.com
INSTALLATION
•  Diaphragms leak a small amount due to migration of gas 
through the diaphragm material. To allow escape of this
gas, be sure casing vents (where provided) remain open.
•  Use control lines of equal or greater size than the control 
tap on the regulator. If a long control line is required,
make it bigger. A rule of thumb is to use the next
nominal pipe size for every 20 feet / 6.1 meters of control 
line. Small control lines cause a delayed response of
the regulator, leading to increased chance of instability.
3/8-inch OD tubing is the minimum recommended
control line size. 
•  When using relief valves, be sure to remember that the 
reseat point is lower than the start-to-bubble point. To
avoid seepage, keep the relief valve setpoint far enough
above the regulator setpoint.
•  Vents  should  be  pointed  down  to  help  avoid  the 
accumulation of water condensation or other materials
in the spring case.
•  Make  control  line  connections  in  a  straight  run  of  pipe 
about 10 pipe diameters downstream of any area of
turbulence, such as elbows, pipe swages, or block valves.
•  When installing a working monitor station, get as much 
volume between the two regulators as possible. This
will give the upstream regulator more room to control
intermediate pressure.
Emerson's sales, service and technical support are close at hand. Anywhere in the world, Emerson resources are
available by telephone or on our website. Our distribution network includes an experienced sales and support team,
with more than 2,000 technical experts available from nearly 200 offices throughout the world.
D351342X012 © 2013 Emerson Process Management Regulator Technologies, Inc. All rights reserved. Printed in China. 11/13.
Fisher, Emerson Process Management, and the Emerson Process Management design are marks of one of the Emerson Process
Management group of companies. All other marks are the property of their respective owners.
For further information visit www.fisherregulators.com
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