Instruction Manual
D100291X012
480 Series Actuators
June 2017
Fisher
™
480 Series Yokeless Piston Actuators
Contents
Introduction 1.................................
Scope of Manual 1.............................
Description 1.................................
Specifications 1...............................
Educational Services 4.........................
Actuator Configurations 4.......................
Installation 5..................................
Principle of Operation 7.........................
Pressure Connections 8..........................
Adjustments 8.................................
Actuator Maintenance 8.........................
Disassembly 9................................
Parts Ordering 12...............................
Parts Kits 12...................................
Parts List 12...................................
Figure 1. Fisher 480‐15 Piston Actuator
W1867
Introduction
Scope of Manual
This instruction manual provides installation, maintenance, and parts information for Fisher 480 Series yokeless piston
actuators.
Do not install, operate, or maintain 480 Series actuators without being fully trained and qualified in valve, actuator,
and accessory installation, operation, and maintenance. To avoid personal injury or property damage, it is important
to carefully read, understand, and follow all the contents of this manual, including all safety cautions and warnings. If
you have any questions about these instructions, contact your Emerson sales office
proceeding.
Description
480 Series actuators (figure 1) 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.
Specifications
Table 1 lists specifications for the 480 Series actuator and table 3 lists specifications for the 3570 actuator.
or Local Business Partner before
www.Fisher.com
480 Series Actuators
June 2017
Table 1. Fisher 480 Series Actuator Specifications
Instruction Manual
D100291X012
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
Stroking Speeds
See table 2
Operative Ambient Temperature
With Nitrile O‐Rings: -46 to 80_C (-50 to 175_F)
With Fluorocarbon O‐Rings (Optional):
-18 to 149_C (0 to 300_F)
requirements ‐‐ (2.4 bar [35 psig]); all other valves ‐‐
(3.4 bar [50 psig])
Actuator Size and Piston Size
See table 2
Maximum Supply Source Consumption
With Positioner and Constant Input Signal: 0.54
normal m
/hr
(1)
(20 scfh
(1)
) of air at 6.9 bar (100 psig)
3
Without Positioner: Depends on cylinder volume and
Pressure Connections
Standard is 1/4 NPT. For larger sizes, contact your
Emerson sales office.
supply pressure
Construction Materials
Travel Information
Maximum Rated Travels, All 480 Series actuators with
Linear Output: See table 2
Travel Stops Available for 480 Series actuators with
105 mm (4.125 inch ) Maximum Rated Travels: See
table 2
Actuator:
Part Material
Cylinder and Piston Aluminum
Piston Rod Extension SST, Chrome Plated
Cylinder Seal Bushings Brass
O‐Rings Nitrile or Fluorocarbon
Thrust Information
See figure 2
Torque Output
480, 480‐15, and 480‐16 (for butterfly valves):
Contact your Emerson sales office
or Local Business
Partner
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.
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)
Table 2. 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 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.
2
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)
TRAVEL STOPS AVAILABLE FOR
ACTUATORS WITH
105 mm (4.125 INCHES)
MAXIMUM RATED TRAVEL
Instruction Manual
D100291X012
Table 3. Fisher 3570 Actuator Specifications
480 Series Actuators
June 2017
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 pressures 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)
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
Positioner input signal
gauge
Cylinder supply pressure
gauge
Static Air Consumption
Number
Used
1
0 0 to 11.0 (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
With Nitrile O‐Rings: -34 to 79_C (-30 to 175_F)
With Fluorocarbon O‐Rings (Optional):
(1,2)
(3)
-18 to 149_C (0 to 300_F)
Output Signal
Type: Pneumatic pressure as required by the actuator
Action: Field reversible between direct and reverse
(see table 4)
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 and 1.01325 bar, absolute); Scfh - standard cubic feet per hour (60_F and 14.7 psia).
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
3
480 Series Actuators
June 2017
Figure 2. Supply Pressure and Thrusts
SIZE 30
ACTUATOR
NOTE:
MAY BE INCREASED BY 10% FOR ACTUATORS WITHOUT POSITIONERS.
EITHER THIS THRUST, OR THE MAXUMUM ALLOWABLE LOADING FOR THE CONTROL
DEVICE IS THE LIMITING FACTOR FOR USABLE ACTUATOR FORCE.
A5961
SIZE 40
ACTUATOR
SIZE 60
ACTUATOR
THRUSTS IN THOUSANDS OF POUNDS (IN THOUSANDS OF NEWTONS)
FOR ACTUATORS WITH POSITIONERS
Figure 3. Frequency Response
Instruction Manual
D100291X012
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
Educational Services
For information on available courses for Fisher 480 Series actuators, as well as a variety of other products, contact:
Emerson Automation Solutions
Educational Services - Registration
Phone: 1-641-754-3771 or 1-800-338-8158
E-mail: education@emerson.com
emerson.com/fishervalvetraining
Actuator Configurations
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.
4
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