Emerson Fisher 1051, Fisher 1052 Data Sheet

Product Bulletin

1052 Actuator

D104082X012

Fisherr 1052 Size 70 Diaphragm Rotary
Actuator

Fisher 1052 size 70 spring‐return diaphragm rotary
actuators operate splined shaft rotary valves, such as
8580, 8532, 8590, CV500, V500, and Vee‐Ballt
(V150, V200 and V300) valves. 1052 actuators are
suitable for on‐off service or for throttling service.

This actuator is designed for easy installation of a
broad range of options: limit switches, position
indicating switches, positioners, and manual
over‐rides. Option applicability varies with actuator
size. Refer to the specifications table and table 4 for
information concerning option applicability and
specifications.

61.1:1052

February 2015

Features

n Application Flexibility-- 1052 rotary actuators are

available with fail‐open or fail‐close construction
and can be mounted in any of four actuator‐valve
mounting positions. See figure 5 for mounting
positions. These actuators can be mounted on a
broad range of Fisher valves or used with other
equipment.

n Minimal Dead Band-- Single joint linkage with

splined and clamped lever minimizes lost motion
and improves control accuracy.

n Long Service Life-- Rugged construction provides

stability, corrosion resistance, and protection from
deformation should over‐pressurization occur.

W8508-3

Typical Fisher 1052 Actuator with Vee‐Ball Valve and

FIELDVUE™ DVC6200 Digital Valve Controller

n Safety-- The 1052 actuator has an externally

accessible spring adjuster to relieve spring
compression (see figure 1). Actuator‐valve linkage
is completely enclosed, yet the valve packing
adjustment remains accessible without removing
any parts (see figure 2).

www.Fisher.com

Product Bulletin

61.1:1052
February 2015

Specifications

1052 Actuator

D104082X012

Available Configurations

For on‐off service without a positioner or for
throttling services with or without a positioner
Direct Acting: Increasing loading pressure extends
the diaphragm rod out of the spring barrel

Actuator Sizes

70

Standard Diaphragm Pressure Ranges

J 0 to 2.3 bar (0 to 33 psig), J 0 to 2.8 bar (0 to 40

psig), and

Maximum Diaphragm Sizing Pressure

J 0 to 3.8 bar (0 to 55 psig)

(1)

3.8 bar (55 psig)

Maximum Diaphragm Casing Pressure

(5)

4.5 bar (65 psig)

Nominal Valve Shaft Rotation

J 90 degrees (standard), J 60 degrees (optional), or
J 75 degrees (optional)

Valve Shaft Diameters, mm (Inches)

J 31.8 (1‐1/4), J 38.1 (1‐1/2),
J 44.5 (1‐3/4), or J 50.8 (2)

piping. If stroking time is critical, consult your
Emerson Process Management sales office

Diaphragm Casing Displacement

See table 1

Construction Materials

See table 3

Material Temperature Capabilities

Nitrile Diaphragm or O‐Rings

(1)

(3)

: -40 to 82_C (-40 to

180_F)
Silicone Diaphragm: -40 to 149_C (-40 to 300_F)

Travel Indication

Graduated scale and pointer combination located on
actuator end of valve drive shaft

Pipe or Tubing Connection Sizes

Standard: 1/4 NPT internal
Optional:

and

J 1/2 or J 3/4 NPT internal,

J 3/4 NPT Pipe‐Away vent opening

Mounting Positions

See figure 5

Maximum Breakout Torque

(2)

Up to 1370 NSm (12,100 lbfSin)

Stroking Time

Dependent on rotation, spring rate, initial spring
compression, supply pressure, and size of supply

1. Use this value to determine the maximum torque output. The pressure/temperature limits in this bulletin and any applicable standard or code limitation for the actuator should not be
exceeded.

2. Actual actuator torque available depends on specific construction and casing pressure. For information on torque requirements of the valve being considered, contact your Emerson Process
Management sales office.

3. Nitrile O‐rings are used in the optional top‐mounted handwheel and in the optional up and down travel stop assemblies.

4. For higher temperature ratings, contact your Emerson Process Management sales office.

5. This maximum casing pressure is not to be used for normal operating pressure. Its purpose is to allow for typical regulator supply settings and/or relief valve tolerances.

Options

Approximate Weights

See table 2

Options

Option applicability varies with actuator size. Refer to
table 4 and the Options section.

61.8:1078 (D101339X012) for handwheel actuator
specifications.

Top‐Mounted Handwheel: For infrequent use as a
manual actuator or for use as an adjustable up travel
stop (see figure 4). For repeated or daily manual
operation, the unit should be equipped with a

Limit Switches:

one or two single‐pole, double‐throw contacts. See
separate bulletins for limit switch information.

Micro‐Switch or NAMCO switches for

declutchable handwheel actuator.

Position Indicating Switch: TopWorx™ DXP M21GNEB

Declutchable Handwheel Actuator: A side‐mounted

manual actuator can be used to provide on‐site control
and to provide override capabilities. See bulletin

switch for one through six single pole, double throw
switch contacts are available. See separate bulletin for
position indicating switch information.

2

1052 Actuator

D104082X012

Product Bulletin

61.1:1052

February 2015

Positioner: For precise positioning of the valve disk or
ball, the actuator should be equipped with a
positioner. Under some service conditions, the 1052
actuator may be used successfully in these
applications without a positioner. For additional
information, contact your Emerson Process

Management sales office with complete service

conditions.

Adjustable Down‐Travel Stop: Used to limit the
actuator stroke in the downward direction
(see figure 3).

Adjustable Up‐Travel Stop: Used to limit the actuator
stroke in the upward direction (see figure 3).

Actuator Locking Mechanism: An actuator locking
mechanism is available. It can be used to keep the
actuator in a locked position (the same as the
spring‐fail position) during maintenance. The padlock
is customer supplied, and the mechanism requires a
modified actuator housing.

Pipe Away Vent: Some applications use natural gas or
other hazardous gases as a supply pressure to the
actuator. These applications sometimes require the
actuator housing to be vented, reducing the
accumulation of gases. For new constructions and
retrofit kit information, contact your Emerson Process
Management sales office with complete service
conditions.

Table 1. Diaphragm Casing Displacement

CASING

SIZE

70 3490 213 13,929 850 19,025 1161

1. Volume when the diaphragm is in the up position.

2. Includes clearance volume.

CLEARANCE

cm3Inches3cm3Inches3cm3Inches

VOLUME

(1)

CASING VOLUME

60 Degree

Rotation

(2)

90 Degree

Rotation

Table 2. Approximate Actuator Weights

SIZE

70 123 272 21.3 47

1052 ACTUATOR

Kg Pounds Kg Pounds

TOP‐MOUNTED

HANDWHEEL

Figure 1. Sectional Views of Spring Seat Construction
Details

W4742-2crop

TYPICAL OF THE 1052

ACTUATOR WITH

ADJUSTABLE SPRING SEAT

Table 3. Construction Materials

PART MATERIAL

Actuator

Actuator Housing and Spring

Handwheel and Handwheel Body Cast iron

3

Barrel

Diaphragm

Diaphragm Head Cast Iron

Diaphragm Casing

Diaphragm Rod Steel

Housing Cover Cast iron or aluminum

Lever Ductile iron

Optional Top‐Mounted Handwheel Assembly

Handwheel Stem Bronze

O‐Rings Nitrile

Pusher Plate Cast iron or steel

Optional Down Travel Stop Assembly

Closing Cap Brass

O‐ring Nitrile

Stem Stainless steel

Travel Stop Body Cast iron

Closing Cap Brass

O‐Ring Nitrile

Stem Bronze

Travel Stop Body Cast iron

(1)

Optional Up Travel Stop Assembly

Nitrile on nylon or silicone on

Cast iron

polyester

Pressed steel

3