Emerson Fisher 1051, Fisher 1052 Installation Instructions

Instruction Manual

D100323X012

1052 Size 20 Actuator (H)

September 2012

Fisherr 1052 Size 20 Diaphragm Rotary Actuator
with H Mounting Adaptation

Contents

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

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

Description 2.................................

Specifications 2...............................

Installation 3..................................

Spring Compression Adjustment 3...............

Initial Spring Compression 3.................

Stroking Range 4..........................

Mounting Procedure 4.........................

Principle of Operation 5........................

Maintenance 6.................................

Disassembly 6................................

Assembly 8...................................

Changing Actuator Mounting 9..................

Changing Styles 9.............................

Changing Positions 11.........................

Top Mounted Handwheel 11.....................

Disassembly 12...............................

Assembly 12..................................

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

Parts List 13...................................

Figure 1. Fisher 1052 Size 20 Actuator
with H Mounting Adaptation

W4140-1

Introduction

Scope of Manual

This instruction manual includes installation, adjustment, operation, maintenance, and parts ordering information for
the Fisher 1052 size 20 diaphragm rotary actuator with Hmounting(figure1)andthe optional top-mounted
handwheel (see figure 7). Instructions for the rotary positioner and other accessories are included in separate
instruction manuals.

Do not install, operate, or maintain a 1052 actuator 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.

www.Fisher.com

1052 Size 20 Actuator (H)

September 2012

Table 1. Specifications

Instruction Manual

D100323X012

Operating Principle

Direct-Increasing loading pressure forces the
diaphragm rod from the top to the bottom of the
casing

Stroking Time

Depends on degrees of rotation, spring rate, initial
spring compression, and supply pressure. If stroking
time is critical, consult your Emerson Process
Management sales office

Casing Pressure Ranges

J 0 to 1.2 bar (10 to 18 psig), J 0to2.3bar(0to

33 psig), or

J 0to2.8bar(0to40psig)depending

on spring used for proportional control; up to 3.4 bar
(50 psig) for on-off control

Maximum Allowable Sizing Pressure

(1)

3.4 bar (50 psig)

Material Temperature Capabilities

-40 to 180_F(-40to82_C)

Pressure Connections

1/4 NPT internal

Mounting Configurations

Seefigure5

Approximate Weight

Maximum Rotation

13.6 kg (30 lb)

90 degrees (travel is adjustable between 60 degrees
and 90 degrees by travel stops)

Top-Mounted Handwheel Specifications

Operating Principle: Can be used for manual

Maximum Allowable Output Torque

58 NSm(515lbfSin)

1. Use this value to determine the maximum torque output. The pressure-temperature limits in this manual and any applicable code or standardshould not be exceeded.

operation of the actuator or as an adjustable up travel
stop
Diameter: 171 mm (6.75 inches)

(1)

Description

The 1052 size 20 spring-and-diaphragm actuator is used on small rotary shaft valves and other equipment for
throttling or on-off control applications. This actuator accepts a 3610J, 3620J, or PMV positioner, and a top-mounted
handwheel is available for the unit.

The Style H mounting adaptation permits the actuator to be used with user-provided mounting brackets and
couplings for rotary actuation of equipment other than Fisher valves. This mounting adaptation includes a flat-surface
actuator mounting plate that is drilled and tapped for attaching the user-provided bracket. Cap screws for attaching
thebracketareprovided.TheHmountingalsoincludesanoutput shaft (with two milled flats) to provide the rotary
output, either directly or through a user-provided coupling.

Dimensional information for the mounting plate and output shaft are shown in figure 4.

Specifications

Specifications are shown in table 1 for 1052, Size 20, Style H actuators. Some specifications for a given actuator as it
originally comes from the factory are stamped on a nameplate attached to the actuator.

2

Instruction Manual

D100323X012

1052 Size 20 Actuator (H)

September 2012

Installation

WARNING

Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal
injury.

Personal injury or equipment damage caused by sudden release of pressure might result if the valve assembly is installed
where service conditions could exceed the limits given in table 1 or on the appropriate nameplates. To avoid such injury or
damage, provide a relief valve for overpressure protection as required by government or accepted industry codes and good
engineering practices.

Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.

If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this
instruction manual.

CAUTION

To avoid parts damage, do not use an operating pressure that exceeds the Maximum Diaphragm Casing Pressure (table 1)
or produces a torque greater than the Maximum Allowable Valve Shaft Torque (see Catalog 14). Use pressure-limiting or
pressure-relieving devices to prevent the diaphragm casing pressure from exceeding its limit.

A 1/4 NPT pressure connection is located on top of the actuator. Run either NPS 1/4 pipe or 3/8-inch tubing between
the pressure connection and the instrument. Keep the length of tubing or pipe as short as possible to avoid
transmission lag in the control signal. If a positioner is used, the pressure connection to the actuator is normally made
at the factory.

When the actuator is completely installed and connected to the instrument, check it for correct action (air-to-open or
air-to-close) to match the controlling instrument. For successful operation, the actuator rod and equipment operating
shaft must move freely in response to the loading pressure change on the diaphragm.

Spring Compression Adjustment

Spring adjustment is shown in figure 2. Key numbers are shown in figure 6.

Initial Spring Compression

The 1052 nameplate specifies a SPRING INITIAL SET, which is the initial compression adjusted into the actuator spring.
Initial compression is the casing pressure at which the diaphragm (key 3) and diaphragm rod (key 10) begin to move
away from the up travel stop. The initial compression is selected (based upon the service conditions specified when
the actuator was ordered) so that when the actuator is in service on the operated equipment, the equipment closes
properly and full travel is obtained within a specified casing range.

If the actuator has been disassembled, or if the spring adjustment was changed, do NOT adjust the initial compression
to exceed the SPRING INITIAL SET value on the nameplate.

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1052 Size 20 Actuator (H)

September 2012

Figure 2. Spring Adjustment

TRAVEL
INDICATOR

W6761-1

Instruction Manual

D100323X012

NOTCHED PORTION OF
SPRING ADJUSTER

DOWN
TRAVEL STOP

UP
TRAVEL STOP

CLAMPED
LEVER

Proper bench set of the spring can only be made when the actuator “up” travel stop has been approximately adjusted.
Insertashaftintheactuatorandadjustthe“up”travelstop before establishing spring compression (since there is no
travel stop in the upper diaphragm casing). Considerable error in adjustment is certain if the above procedure is not
followed. This error can result in under travel of the actuator when the spring goes solid or excess compression has
been applied.

Adjust the spring so that the diaphragm rod just starts to travel at the SPRING INITIAL SET pressure specified on the
nameplate. To adjust the spring, remove the positioner, if one is used, or the cover. The lower part of the spring
adjuster is notched, as shown in figure 2. Using a screwdriverasshowninfigure2,rotatethenotchestotherightto
decrease spring compression or to the left to increase spring compression. Replace the positioner or the cover when
adjustment is complete.

Stroking Range

The SPRING INITIAL SET listed on the nameplate is the optimum setting, and spring adjustments that cause this value
to change or be exceeded are not recommended. For push-down-to-open action, the initial spring set is normally the
maximum allowable to provide the maximum spring closing force. Any increase in this setting may overstress the
spring at full travel. For push-down-to-close action, the initial spring set is the optimum balance between the
air-to-close and spring-to-open breakout torque.

If, under operating conditions, the stroking range does not match the intended casing pressure, it may be possible to
shift the stroking range by adjusting the spring to change the initial spring compression. A spring adjustment shifts the
casing pressure span and equally increases (or decreases) the casing pressure at which the actuator begins to stroke
and the pressure at which the actuator reaches full travel.

To adjust the spring, remove the positioner, if one is used, or the cover. The lower part of the spring adjuster is
notched, as shown in figure 2. Using a screwdriver as shown in figure 2, rotate the notches to the right to shift the
casing pressure span downward, or to the left to shift the casing pressure span upward. Replace the positioner or the
cover.

Mounting Procedure

Use the following steps to connect the actuator to valve body or other equipment. Key numbers are shown i n figure 6.
Mounting dimensions are shown in figure 4.

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Instruction Manual

D100323X012

Figure 3. Center of Gravity Dimensions

58.7

NOTE:
CENTER OF GRAVITY INCLUDES YOKE WEIGHT.

14B8083-A

(2.31)

125
(4.91)

mm
(INCH)

1052 Size 20 Actuator (H)

September 2012

Note

Find dimensions and center of gravity information in figures 3 and 4 and the approximate weight in table 1. This information is
required for fabrication of the proper bracket and c oupling.

1. Attach an appropriate mounting bracket (not provided) to the mounting plate (key 22) in the desired orientation
withthecapscrews(key78).Seefigure4formountingdimensions on the mounting plate. Tighten the cap screws
to the value in table 2.

2. Consult figure 5 for available mounting styles and positions. The actuator is normally positioned vertically with the
valve or other equipment in a horizontal pipeline.

Note

If the milled flats on the end of the actuator output shaft (key 87) are oriented so that the output shaft cannot accommodate the
operated equipment shaft, refer to the Changing Positions procedure of the Changing Actuator Mounting section. This procedure
describes how the output shaft can be repositioned to accommodate the operated equipment shaft.

3. Slide the actuator (with the user-provided mounting bracket attached) into the user-provided coupling on the
operated shaft. Then, secure the actuator to the operated equipment in the desired mounting position with
appropriate fasteners, such as mounting cap screws. See figure 4 for output shaft dimensions.

Principle of Operation

Refer to figure 6. The diaphragm rod (key 10) moves down as loading pressure is increased on top of the diaphragm
(key 3). As the loading pressure is decreased, the spring (key 11) forces the diaphragm rod upward.

5