Emerson Fisher 480, Fisher 3570 Data Sheet

Product Bulletin

480 Series Actuators

D100091X012

61.2:480

February 2013

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.

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.

www.Fisher.com

Product Bulletin

61.2:480
February 2013

480 Series Actuator Specifications

480 Series Actuators

D100091X012

Available Configurations

See the Actuator Configurations section

Operative Ambient Temperature

With Nitrile O-Rings: -46 to 80_C(-50to175_F)
With Fluorocarbon O-Rings (Optional):

Cylinder Pressure

Maximum Allowable:

(4)

10.3 bar (150 psig)
Required to Produce a Given Thrust: Seefigure2
Minimum Recommended: Valves with low torque
requirements - (2.4 bar [35 psig]); all other valves -

-18 to 149_C(0to300_F)

Actuator Size and Piston Size

See table 1

(3.4 bar [50 psig])

Pressure Connections

Maximum Supply Source Consumption

With Positioner and Constant Input Signal: 0.54
normal m

3

/hr

(1)

(20 scfh

(1)

) of air at 6.9 bar (100 psig)
Without Positioner: Depends on cylinder volume and
supply pressure

Standard is 1/4 NPT. For larger sizes, contact your
Emerson Process Management sales office.

Construction Materials

Actuator:

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

Part Material

Cylinder and Piston Aluminum

Piston Rod Extension SST, Chrome Plated

Cylinder Seal Bushings Brass

O-Rings Nitrile or Fluorocarbon

Thrust Information

Seefigure2

Linkage Connections and Mounting Information

See figures 7, 8, 9, and 10

Torque Output

480, 480-15, and 480-16 (for butterfly valves):
Contact your Emerson Process Management sales
office

Stroking Speeds

See table 1

1. Normal m3/hr.- normal cubic meters per hour (0_C and1.01325 bar, absolute);Sc fh - standard cubic feet per hour (60_Fand14.7psia).

2. These termsare defined in ANSI/ISA Standard S51.1

3. Without snubber. If this actuator has a snubber, the temperature specification is the samefor the nitrile version.

4. The pressure limits in this bulletin andany applicable standard orcode limitation for actuator sho uld not be exceeded.

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

(2)

(3)

2

480 Series Actuators

D100091X012

3570 Actuator Specifications

Product Bulletin

61.2:480

February 2013

Available Configurations

3570: Valve positioner with two relays and three
pressure gauges for monitoring i nput 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: 0.2to1.0bar(3to15psig)or0.4
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

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 m

3

/hr.- normal cubic meters per hour (0_C and1.01325 bar, absolute); Scfh - standard cubic feet per hour (60_F and 14.7 psia).

Frequency Response

(1,2)

Seefigure3

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

Positioner input signal

gauge

Cylinder supply pressure

gauge

Static Air Consumption

Number

Used

1

0 0 to11.0 (0 to 160)

(3)

Standard Gauge Range

bar (psig)

0 to 2.1 (0 to 30) or

0 to 4.1 (0 to 60)

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(-30to175_F)
With Fluorocarbon O-Rings (Optional):

(3)

-18 to

149_C(0to300_F)

Construction Materials

Actuator:

Part Material

Base, Coverand 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

3

Product Bulletin

61.2:480
February 2013

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

ACTUATOR

SIZE

30 107 16.5 121 4.75 102 4 --- --- 105 4.125 89 3.5

40
60

1. For actuators with positioners at6.9 bar (100 psig) supply pressure and all prestroke conditions satisfied.Stroking speeds foractuators without positioners or withsnubbers will depend on
the particular construction involved.

2. See 480Series Actuators Specifications for these travels.

EFFECTIVE

PISTON AREA

cm2Inch2mm Inch mm/s Inch/s mm Inch mm Inch mm Inch

182

28.25

258

55.5

PISTON

DIAMETER

156
216

6.125

8.5

STROKING

(1)

SPEED

52332.05

1.30

–16 Versions

206 8.125 105 4.125 89 3.5

SINGLE-FLANGE

All Others Except Fisher 487,

487-1

(2)

Table 2. Action Under Normal Operating Conditions

ACTUATOR DESCRIPTION

With Positioner

Without positioner

1. Supply pressure is routed through relays to piston.

Direct-acting Increasing input signal pressure to bellows

Reverse-acting Decreasing input signal pressure to bellows

Down Up

Supply pressure loaded on top of piston,

exhausted from bottom

DESIRED PISTONMOTION

(1)

Decreasing input signal pressure to bellows

(1)

Increasing input signal pressure to bellows

Supply pressure loaded on bottom of piston,

480 Series Actuators

D100091X012

TRAVEL STOPS AVAILABLE FOR

ACTUATORS WITH 105 mm

(4.125 INCHES) MAXIMUM

RATED TRAVEL

exhausted from top

(1)

(1)

Figure 1. Positioner Simplicity

NOZZLE
DETERMINES

RANGE SPRING
DETERMINES
TRAVEL SPAN

SENSITIVITY

BIAS SPRING
ADJUSTING SCREW
DETERMINES CORRECT
TRAVEL STARTING POINT

W0701-1*

ADJUSTMENTS

Actuator Configurations

480: Yokeless piston actuator with positioner.

481: Yokeless piston actuator without positioner.
Other actuators may be obtainedwithout positioner
by adding -1 to the type number.

REMOVAL OF FOUR SCREWS

BEAM

BELLOWS
BASE

DIRECT-ACTING POSITION

AJ1880-A
A1283-1

BELLOWS
POSTS

PEDESTAL

REVERSE-ACTING POSITION

REVERSAL

Theseactuatorsmaybeobtainedwiththefollowing
alternate universal mounting flange constructions:

-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.

BELLOWS
BASE

BEAM
PEDESTAL

Theaboveactuatorscomewithstandardmounting
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.

4

-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.