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480 Series Actuators
August 2012
Table 1. Fisher 480 Series Actuator Specifications
Available Configurations
See the Actuator Configurations section.
Cylinder Pressure
(4)
Maximum Allowable:
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
3
(1)
normal m
/hr
(20 scfh
Without Positioner: Depends on cylinder volume and
supply pressure
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
Thrust Information
See figure 2
Torque Output
480, 480-15, and 480-16 (for butterfly valves):
Contact your Emerson Process Management sales
office
3
1. Normal m
/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.
Table 2. Size, Piston, Stroking Speed, and Travel Information
EFFECTIVE
PISTON AREA
ACTUATOR
SIZE
2
2
Cm
Inch
30
107
16.5
40
182
28.25
60
258
55.5
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.
2
10.3 bar (150 psig)
(1)
) of air at 6.9 bar (100 psig)
PISTON
STROKING
DIAMETER
SPEED
mm/
mm
Inch
Inch/s
s
121
4.75
102
156
6.125
52
2.05
216
8.5
33
1.30
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)
Actuator Size and Piston Size
See table 2
Pressure Connections
Standard is 1/4 NPT. For larger sizes, contact your
Emerson Process Management sales office.
Construction Materials
Actuator:
Cylinder and Piston
Piston Rod Extension
Cylinder Seal Bushings
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
SINGLE-FLANGE
All Others Except Fisher 487,
(1)
–16 Versions
mm
Inch
4
- - -
- - -
206
8.125
Instruction Manual
Part
SST, Chrome Plated
O-Rings
Nitrile or Fluorocarbon
TRAVEL STOPS AVAILABLE
FOR ACTUATORS WITH
105 mm (4.125 INCHES)
(2)
487-1
MAXIMUM RATED TRAVEL
mm
Inch
105
4.125
105
4.125
D100291X012
(2)
(3)
Material
Aluminum
Brass
mm
Inch
89
3.5
89
3.5
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