Emerson Fisher 480 Installation Instructions

Instruction Manual

D100291X012

480 Series Actuators

Fisherr 480 Series Yokeless Piston Actuators

August 2012

Contents

Introduction 1.................................

Scope of Manual 1.............................

Description 1.................................

Specifications 1...............................

Actuator Configurations 4.......................

Installation 5..................................

Principle of Operation 6.........................

Pressure Connections 7.........................

Adjustments 7.................................

Actuator Maintenance 8.........................

Disassembly 8................................

Parts Ordering 12...............................

Parts List 12...................................

Introduction

Figure 1. Fisher 480-15 Piston Actuator

W1867

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 Process Management sales office before
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.

www.Fisher.com

480 Series Actuators

August 2012

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: Seefigure2
Minimum Recommended: Valves with low torque

Stroking Speeds

See table 2

Operative Ambient Temperature

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

-18 to 149_C(0to300_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 Process Management 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

Seefigure2

Torque Output

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

1. Normal m3/hr.- normal cubic meters per hour (0_C and 1.01325 bar, absolute); Scfh - standard cubicfeet per hour (60_Fand14.7psia).

2. These terms are defined in ANSI/ISA StandardS51.1

3. Without snubber. Ifthis actuator has a snubber, the temperature specification is the sa me for the nitrile version.

4. The pressure limits inthis bulletin and any applicablestandard or code limitation for actuator shouldnot 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

EFFECTIVE

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 p ressure and all prestrokeconditions satisfied. Strokingspeeds for actuators withoutpositioners or with snubbers will depend on
the particular construction involved.

2. See 480 series Actuators Specifications for these travels.

2

PISTON AREA

Cm2Inch2mm Inch

182

28.25

258

55.5

PISTON

DIAMETER

156
216

6.125

8.5

STROKING

(1)

SPEED

mm/

Inch/s mm Inch mm Inch mm Inch

s

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

August 2012

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: 0.2to1.0bar(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)

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 0to11.0(0to160)

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

(1,2)

(3)

-18 to 149_C(0to300_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 definedin ANSI/ISA Standard S51.1

2. For actuator with positioner only. Does not apply toother 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

August 2012

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 FORUSABLE 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

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
thetypenumber.

The above actuators come with standard mounting flange, 105 mm (4.125 inch) maximum rated travel, and threaded
pistonrodconnectionwithsizes30through60formounting on ball valves, louvers, and dampers with brackets.

These actuators may be obtained with the following 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.

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

4