Emerson Fisher 3570 Data Sheet

2015-03-30

: Emerson Emerson-Fisher-3570-Data-Sheet-681657 emerson-fisher-3570-data-sheet-681657 emerson pdf

Open the PDF directly: View PDF .
Page Count: 12

Download
Open PDF In Browser	View PDF

Product Bulletin

480 Series Actuators

61.2:480
February 2013

D100091X012

Fisherr 480 Series Yokeless Piston Actuators
Fisher 480 Series actuators are yokeless piston
actuators that are used in either throttling or on-off
applications with ball valves, butterfly valves, louvers,
dampers, and rheostats. They require pneumatic
pressure loading from double-acting positioners
(Fisher 3570) or from on-off loading and unloading
devices.

Features


Actuator Versatility–Actuator with or without
positioners and snubbers is available in an
assortment of sizes, stroking speeds, thrusts, and
travels to handle most control requirements.
W1867



Compact Design–Yokeless construction permits a
low-profile assembly by allowing close coupling to
the control device; either through a bracket or, with
some versions, by direct mounting on a bonnet
flange.



Wide Range Supply Pressure Capability–The
cylinder (and 3570 positioner if used) can operate
with supply pressures as low as 2.4 bar (35 psig) or
as high as 10.3 bar (150 psig).



Long Stroke–Actuators have maximum rated
travels of up to 206 mm (8.125 inches).
Positioner Versatility–Positioner/actuator action is
easily reversed in the field with no additional parts.
Positioner sensitivity, travel span, and travel starting
point are factory set and need to be reset only if
operating conditions have changed or if the
positioner has been reversed. See figure 1.

www.Fisher.com

Fisher 480-15 Piston Actuator

Actuator Frequency
Response
Figure 3 shows how various size actuators respond
when the input supply pressure is cycled at small
amplitude (3 to 5 percent) and increasing frequency.
Assume the cycling supply pressure and the
movement of the actuator rod are represented by sine
waves. As the actuator rod is forced to move faster, its
motion begins to fall behind the input in both time
(shown as phase lag) and amplitude (shown as
normalized gain). Both of these parameters are
affected by the inertia of the actuator and,
consequently, changes are more pronounced in the
larger constructions.

Product Bulletin

480 Series Actuators

61.2:480
February 2013

D100091X012

480 Series Actuator Specifications
Available Configurations
See the Actuator Configurations section
Cylinder Pressure
Maximum Allowable:(4) 10.3 bar (150 psig)
Required to Produce a Given Thrust: See figure 2
Minimum Recommended: Valves with low torque
requirements - (2.4 bar [35 psig]); all other valves (3.4 bar [50 psig])
Maximum Supply Source Consumption
With Positioner and Constant Input Signal: 0.54
normal m3/hr(1) (20 scfh(1)) of air at 6.9 bar (100 psig)
Without Positioner: Depends on cylinder volume and
supply pressure
Travel Information
Maximum Rated Travels, All 480 Series actuators with
Linear Output: See table 1
Travel Stops Available for 480 Series actuators with
105 mm (4.125 inch ) Maximum Rated Travels: See
table 1
Thrust Information
See figure 2
Torque Output
480, 480-15, and 480-16 (for butterfly valves):
Contact your Emerson Process Management sales
office
Stroking Speeds
See table 1

Operative Ambient Temperature(2)
With Nitrile O-Rings: -46 to 80_C (-50 to 175_F)
With Fluorocarbon O-Rings (Optional):(3)
-18 to 149_C (0 to 300_F)
Actuator Size and Piston Size
See table 1
Pressure Connections
Standard is 1/4 NPT. For larger sizes, contact your
Emerson Process Management sales office.
Construction Materials
Actuator:
Part

Material

Cylinder and Piston

Aluminum

Piston Rod Extension

SST, Chrome Plated

Cylinder Seal Bushings

Brass

O-Rings

Nitrile or Fluorocarbon

Linkage Connections and Mounting Information
See figures 7, 8, 9, and 10
Options
J 376 Series trip valve system to fail actuator
J up or J down or J lock in last position
J TopWorxt DXP M21GNEB electrical valve stem
position switch
J Micro-Switch limit switches

1. Normal m3/hr.- normal cubic meters per hour (0_C and 1.01325 bar, absolute); Scfh - standard cubic feet per hour (60_F and 14.7 psia).
2. These terms are defined in ANSI/ISA Standard S51.1
3. Without snubber. If this actuator has a snubber, the temperature specification is the same for the nitrile version.
4. The pressure limits in this bulletin and any applicable standard or code limitation for actuator should not be exceeded.

Product Bulletin

480 Series Actuators

61.2:480
February 2013

D100091X012

3570 Actuator Specifications
Available Configurations
3570: Valve positioner with two relays and three
pressure gauges for monitoring input signal and
output pressures to the top and underside of the
actuator piston
3570C: Similar to 3570 except that the positioner is
equipped with automotive tire valves instead of
pressure gauges. The valves can be used for clip-on
test pressure gauges. The relay nozzles on these
positioners are locked in place with locknuts to resist
unwanted nozzle movement due to vibration
Input Signal
Standard Ranges: 0.2 to 1.0 bar (3 to 15 psig) or 0.4
to 2.0 bar (6 to 30 psig)
Split Ranges: Typically uses one half of standard range
when two control valves are operated by one input
signal from a single controller
Optional Ranges: As required within the limits of the
bellows
Bellows Pressure Rating
Standard Bellows: 3.4 bar (50 psig)
Optional Bellows: 6.2 bar (90 psig)
Supply Pressure
Maximum: 10.3 bar (150 psig)
Minimum: 2.4 bar (35 psig)
Output Signal
Type: Pneumatic pressure as required by the actuator
Action: Field reversible between direct and reverse
(see table 2)
Hysteresis(1,2)
0.15% of total stroke or instrument pressure span
Resolution(1,2)
0.2% of instrument pressure span
Repeatability(1,2)
0.3% of instrument pressure span

Frequency Response(1,2)
See figure 3
Pressure Connections
Vent: 3/8 NPT
All Others: 1/4 NPT
Pressure Indications
3570C: Tire valves accept standard pressure gauge
chucks
3570: See table below
Type of Indication

Number
Used

Standard Gauge Range
bar (psig)

Positioner input signal
gauge

0 to 2.1 (0 to 30) or
0 to 4.1 (0 to 60)

Cylinder supply pressure
gauge

0 to 11.0 (0 to 160)

Static Air Consumption(3)
0.56 normal m3/hr (20 scfh) with 6.9 bar (100 psig)
supply pressure
Operative Ambient Temperature(1,2)
With Nitrile O-Rings: -34 to 79_C (-30 to 175_F)
With Fluorocarbon O-Rings (Optional):(3) -18 to
149_C (0 to 300_F)
Construction Materials
Actuator:
Part

Material

Base, Cover and Beam
Bellows
Bias and Range Spring
Relay Body
Relay Nozzle(s)
Diaphragm
O-Rings

Aluminum, die cast
Brass
Steel, Plated
Zinc, Die Cast
SST
Nitrile or Fluorocarbon
Nitrile or Fluorocarbon

Options
Fisher SS-52 clip-on chuck (with or without gauge) for
3570C positioners

1. These terms are defined in ANSI/ISA Standard S51.1
2. For actuator with positioner only. Does not apply to other constructions or actuator-valve combination.
3. Normal m3/hr.- normal cubic meters per hour (0_C and 1.01325 bar, absolute); Scfh - standard cubic feet per hour (60_F and 14.7 psia).

Product Bulletin

480 Series Actuators

61.2:480
February 2013

D100091X012

Table 1. Size, Piston, Stroking Speed, and Travel Information
ACTUATOR
SIZE

EFFECTIVE
PISTON AREA

PISTON
DIAMETER

STROKING
SPEED(1)

TRAVEL STOPS AVAILABLE FOR
ACTUATORS WITH 105 mm
All Others Except Fisher 487,
(4.125 INCHES) MAXIMUM
(2)
487-1
RATED TRAVEL

SINGLE-FLANGE
–16 Versions

cm2

Inch2

Inch

mm/s

Inch/s

Inch

107

16.5

121

4.75

102

---

105

4.125

3.5

40
60

182
258

28.25
55.5

156
216

6.125
8.5

52
33

2.05
1.30

206

8.125

105

4.125

3.5

1. For actuators with positioners at 6.9 bar (100 psig) supply pressure and all prestroke conditions satisfied. Stroking speeds for actuators without positioners or with snubbers will depend on
the particular construction involved.
2. See 480 Series Actuators Specifications for these travels.

Table 2. Action Under Normal Operating Conditions
DESIRED PISTON MOTION

ACTUATOR DESCRIPTION
With Positioner

Down

Direct-acting

Increasing input signal pressure to bellows(1)

Decreasing input signal pressure to bellows(1)

Reverse-acting

Decreasing input signal pressure to bellows(1)

Increasing input signal pressure to bellows(1)

Supply pressure loaded on top of piston,
exhausted from bottom

Supply pressure loaded on bottom of piston,
exhausted from top

Without positioner
1. Supply pressure is routed through relays to piston.

Figure 1. Positioner Simplicity
NOZZLE
DETERMINES
SENSITIVITY
RANGE SPRING
DETERMINES
TRAVEL SPAN

BIAS SPRING
ADJUSTING SCREW
DETERMINES CORRECT
TRAVEL STARTING POINT

BEAM
BELLOWS
BASE

REMOVAL OF FOUR SCREWS
BELLOWS
BASE

BELLOWS
POSTS
PEDESTAL

DIRECT-ACTING POSITION

BEAM
PEDESTAL

REVERSE-ACTING POSITION

AJ1880-A
A1283-1
W0701-1*

ADJUSTMENTS

Actuator Configurations

REVERSAL

These actuators may be obtained with the following
alternate universal mounting flange constructions:

480: Yokeless piston actuator with positioner.
481: Yokeless piston actuator without positioner.
Other actuators may be obtained without positioner
by adding -1 to the type number.
The above actuators come with standard mounting
flange, 105 mm (4.125 inch) maximum rated travel,
and threaded piston rod connection with sizes 30
through 60 for mounting on ball valves, louvers, and
dampers with brackets.

-15 Added to Type Number: Allows butterfly valve
mounting for a standard actuator with 105 mm (4.125
inch) maximum travel and threaded piston rod
connection, and comes in sizes 30 through 60.

-16 Added to Type Number: Provides 206 mm (8.125
inch) maximum travel and threaded piston rod
connection, and comes in sizes 40 through 60.

Product Bulletin

480 Series Actuators

61.2:480
February 2013

D100091X012

Figure 2. Supply Pressure and Thrusts
SIZE 30
ACTUATOR

SIZE 40
ACTUATOR
SIZE 60
ACTUATOR

A5961

Thrusts in thousands of pounds (in thousands of newtons)
for actuators with positioners. 1

Note:

1
May be increased by 10% for actuators without positioners. Either this thrust, or the maximum allowable loading for the control device
is the limiting factor for usable actuator force.

Figure 3. Frequency Response

1. SIZE 30- 19mm (0.75 INCH) TRAVEL
2. SIZE 40- 38mm (1.5 INCH) TRAVEL
3. SIZE 60- 38mm (1.5 INCH) TRAVEL

A5962

FREQUENCY - HERTZ

Principle of Operation
Actuator
These actuators react to a pressure unbalance that is
created by loading supply pressure on one side of the
piston and unloading the opposite side. Some type of
switching device is required to shift the supply
pressure from one side of the piston to the other. For
most actuators in the 480 Series, this device is a 3570

positioner. However, a separate loading device must
be provided for actuators without positioners.
For actuators with positioners (figure 4), the
pneumatic output signal from a controller or
instrument is piped to the positioner bellows. As long
as the bellows receives a constant input signal
pressure, the beam remains motionless and allows
supply pressure to bleed through both relay nozzles
such that a constant pressure is maintained between
the nozzle and the fixed orifice. The relays are in
equilibrium with their inlet and exhaust valves closed.

Product Bulletin

480 Series Actuators

61.2:480
February 2013

D100091X012

Figure 4. Operation of Actuator with Positioner

FIXED RESTRICTION
RANGE SPRING
BIAS
SPRING

BELLOWS
REVERSED
POSITION

RELAY B

Figure 5. Operation of Actuator with Snubber
SNUBBER
POSITIONER
SWITCHING
DEVICE

CHECK
VALVES

INSTRUMENT
BEAM

SUPPLY

RELAY A
FIXED RESTRICTION
32A8303-A
A1287

INSTRUMENT PRESSURE
SUPPLY PRESSURE
TOP CYLINDER PRESSURE
BOTTOM CYLINDER PRESSURE
NOZZLE PRESSURE
BJ8256-A
A1286

Assume that a downward piston motion is required
and the bellows receives a corresponding change in
input signal pressure. This causes the beam to pivot so
that it covers the nozzle on relay A. (Beam movement
is accomplished either by increasing the input signal
pressure on a direct-acting positioner to expand the
bellows, or by decreasing the input signal pressure on
a reverse-acting positioner to contract the bellows.)

The nozzle pressure in relay A increases due to the
restriction created by the beam over the nozzle.
Through relay action, the air pressure to the top of the
piston is increased. At the same time, relay B reacts to
the change in beam position to decrease the pressure
to the underside of the piston. Due to the resulting
unbalanced forces acting on the piston, it moves
down, changing the valve plug position.

Piston movement is fed back to the beam by means of
a range spring which is connected to the beam and to
the piston rod extension, applying a force to the beam
opposite to that caused by the expanding or
contracting bellows. This feedback arrangement
prevents overcorrection and ensures a definite
position of the piston and valve plug for a given
instrument signal.

SUPPLY PRESSURE
TOP CYLINDER PRESSURE
BOTTOM CYLINDER PRESSURE
UPPER SNUBBER PRESSURE
LOWER SNUBBER PRESSURE

If upward piston motion is required, the beam pivots
over the nozzle on relay B. The result is relay, piston,
and feedback action opposite that for downward
piston motion.
Reversal of positioner action is accomplished simply by
removing four screws, inverting the bellows, and
installing two bellows posts for support it the change is
from direct to reverse action. Bellows posts are stored
in the positioner case and are not used if the change is
from reverse to direct.

Actuator with Snubber
As the actuator piston strokes, the snubber piston
moves inside an oil-filled cylinder, forcing oil from one
side of the piston to the other through two check
valves (see figure 5). The resistance to flow created by
the settings of the check valves and the shock
absorbing quality of the oil combine to damp out any
tendency of the valve plug to jump. The plug of each
check valve is held off its seat by the positioning of the
adjusting screws. Thus, with the adjusting screws
backed off all the way, maximum damping will be
obtained.

Installation
The actuator may be installed in any position, but
normal installation is with the actuator vertical above
the valve. Dimensions are given in figures 6, 7, 8, 9,
and 10.

Product Bulletin

480 Series Actuators

61.2:480
February 2013

D100091X012

Ordering Information
When ordering, specify:
1. Type number
a. For actuator, suffix dash numbers of desired
constructions are appropriate.
b. For positioner (if used)

6. Operative ambient temperature
7. Travel
8. Desired options
9. Application requirements
a. Type, body size, port diameter, stem connection
size, and the action of the valve to be used with the
actuator.

2. Supply Pressure

b. Valve inlet pressure

3. Actuator size and connection size and style desired

c. Valve shutoff pressure drop

4. Input signal range

d. Valve flowing pressure drop

5. Desired stroking time and direction, if applicable

e. Process fluid temperature

Product Bulletin

480 Series Actuators

61.2:480
February 2013

D100091X012

Table 3. Cylinder Diameter and Bolt Center Location, All Actuators
C

ACTUATOR SIZE

H, DEGREE OF ARC

Inch

Standard Flange

Universal Mounting Flange

171

6.75

206

8.12

267

10.50

22.5

Figure 6. Cylinder Diameter and Bolt Center Location, All Actuators (refer to table 3)

BH9452-K
A1290

Figure 7. Dimensions for Actuators with Clevis Connection
135
(5.31)

1/4-18 NPT
SUPPLY CONNECTION
ON BACKSIDE

147
(5.81)

3/8-18 NPT
VENT CONNECTION

57
(2.25)
8 (0.31)
DIAMETER BOLT

155
(6.12)

46 (1.81)
11
(0.44)
73
(2.88)
127
(5.00)

4-3/8 INCH -16
HOLES TAPPED
22 (0.88) DEEP
mm
(inch)

BK4109-B
A1295

Duplicated on opposite side; each hole is 5/16 inch-18 UNC-2B and tapped 13 (0.50) deep.

Product Bulletin

480 Series Actuators

61.2:480
February 2013

D100091X012

Table 4. Dimensions and Mounting Information for Actuators with Threaded Piston Rod and Standard Mounting
Flange, or Positioner, or Snubber
ACTUATOR
SIZE
30
40
60

Inch

250
208
211

8.06
8.19
8.31

86
83
79

3.38
3.25
3.12

170
173
203

6.69
6.81
8.00

63
63
63

2.50
2.50
2.50

33
33
33

1.31
1.31
1.31

Number
2
4
8

Bolt Circle Diameter
mm

Inch

146
181
241

5.75
7.12
9.50

THREADED PISTON
ROD CONNECTION
UNF-2A
7/8 inch - 14

Figure 8. Dimensions and Mounting Information for Actuators with Threaded Piston Rod and Standard Mounting
Flange, or Positioner, or Snubber (refer to table 4)
157
(6.19)

3/8-18 NPT
VENT
CONN

130
(5.13)

1/4-18 NPT
SUPPLY CONN
ON BACKSIDE
310
(12.19)

A
1

57
(2.25)

BOLT CIRCLE
NO. OF STUDS
3/4 INCH-10 UNC-2A

44
30
(1.19) (1.75)

G
K
F
I

mm
(inch)

BL1413-B
A1291

1
2

Duplicated on opposite side; each hole is 5/16 inch-18 UNC-2B and tapped 13 (0.50) deep.
This dimension does not exist if no snubber is used.

Product Bulletin

480 Series Actuators

61.2:480
February 2013

D100091X012

Table 5. Dimensions for Actuators without Positioner, with Long Stroke, or with Threaded Piston Rod and Universal
Mounting Flange
A
Actuator
Size
30
40, 60

–15
Versions

B
–16
Versions

–15
Versions

F
–16
Versions

–15
Versions

G
–16
Versions

mm Inch mm Inch mm Inch mm Inch mm Inch mm

222
222

-1.87

8.75
8.75

-343

-13.5

90
90

3.56
3.56

-108

-4.25

64
64

2.5
2.5

-47

–15
Versions

I
–16
Versions

Bolt Circle
Diameter

mm Inch mm Inch mm
33
33

1.31
1.31

-51

-2.00

99
99

Inch
3.88
3.88

Thread
Diameter

Threaded
Piston Rod
Connection
UNF-2A

1/2-13
1/2-13

7/8-inch-14
7/8-inch-14

Figure 9. Dimensions for Actuators without Positioner, with Long Stroke, or with Threaded Piston Rod and Universal
Mounting Flange (refer to table 5)

111
(4.38)

1/4-18 NPT

121
(4.75)

57
(2.25)

B
4 HOLES
TAPPED 22 mm
(0.88 inches) DEEP

K
F
I

1
2

mm
(inches)

For -16 version only.
Duplicated on opposite side; each hole is 5/16 inch-18 UNC-2B and tapped 13 mm (0.50 inches) deep.

Product Bulletin

480 Series Actuators

61.2:480
February 2013

D100091X012

Figure 10. Dimensions for Actuators with Rotary Couplings

340
(13.38)
1

171
(6.75) DIAMETER

57
(2.25)

3/8 INCH-16
UNC-2B

154
(6.06)
71
(2.81)

13
(0.5)

71
71
(2.81) (2.81)

95
(3.75)

71
(2.81)
146
(5.75)

171
(6.75)
DIA

19
(0.75) DIA HOLE
3

mm
(inches)

BK6785-B
B0662

1
2
3

Duplicated on opposite side; each hole is 5/16 inch-18 UNC-2B and tapped 13 mm (0.50 inches) deep.
Socketed coupling with setscrew adjustment. 6 mm (0.25 inch), 10 mm (0.38 inch), and 13 mm (0.50 inch) inside diameters.
Four holes total on 140 mm (5.5 inch) bolt circle.

Product Bulletin
61.2:480
February 2013

480 Series Actuators
D100091X012

Neither Emerson, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance
of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
Fisher and TopWorx are marks owned by one of the companies in the Emerson Process Management business unit of Emerson Electric Co. Emerson Process
Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective
owners.
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. All sales are
governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such
products at any time without notice.
Emerson Process Management
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Chatham, Kent ME4 4QZ UK
Dubai, United Arab Emirates
Singapore 128461 Singapore

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.3
Linearized                      : Yes
XMP Toolkit                     : Adobe XMP Core 4.2.1-c043 52.372728, 2009/01/18-15:08:04
Create Date                     : 2013:01:30 09:38:24-06:00
Modify Date                     : 2013:01:30 09:38:57-06:00
Metadata Date                   : 2013:01:30 09:38:57-06:00
Producer                        : Acrobat Distiller 9.5.1 (Windows)
Format                          : application/pdf
Title                           : untitled
Document ID                     : uuid:d2eb7e9e-cfd6-4f47-946f-e96400be9391
Instance ID                     : uuid:deae7c20-acea-4aa0-9ca1-71bc0f1f1a6b
Page Count                      : 12

EXIF Metadata provided by EXIF.tools

Emerson Fisher 3570 Data Sheet

Navigation menu

Versions of this User Manual:

Views

Navigation