Instruction Manual
D100291X012
480 Series Actuators
August 2012
2
Table 1. Fisher 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 m
3
/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 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
Stroking Speeds
See table 2
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 2
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
Options
J
376 Series trip valve system to fail actuator
J
up or
J
down or
J
lock in last position
J
TopWorx
t
DXP M21GNEB electrical valve stem
position switch
J
Micro-Switch limit switches
1. 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).
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
ACTUATOR
SIZE
EFFECTIVE
PISTON AREA
PISTON
DIAMETER
STROKING
SPEED
(1)
SINGLE-FLANGE
TRAVEL STOPS AVAILABLE
FOR ACTUATORS WITH
105 mm (4.125 INCHES)
MAXIMUM RATED TRAVEL
–16 Versions
All Others Except Fisher 487,
487-1
(2)
Cm
2
Inch
2
mm
Inch
mm/
s
Inch/s
mm
Inch
mm
Inch
mm
Inch
30
107
16.5
121
4.75
102
4
- - -
- - -
105
4.125
89
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
89
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.
