Description - Emerson Fisher 1051 Instruction Manual

1051 and 1052 Size 33 Actuators
June 2017
Table 1. Specifications
Available Configuration
1051: For on‐off service without a positioner or for
throttling service with a positioner
1052: For on‐off service without a positioner or for
throttling service with or without a positioner
Standard Diaphragm Pressure Ranges
J 0 to 1.2 bar (0 to 18 psig), J 0 to 2.3 bar (0 to 33
psig), J 0 to 2.8 bar (0 to 40 psig), and J 0 to 3.8 bar
(0 to 55 psig)
Maximum Diaphragm Sizing Pressure
3.8 bar (55 psig)
Maximum Diaphragm Casing Pressure
4.5 bar (65 psig)
Maximum Valve Shaft Rotation
J 90 degrees (adjustable through 60 degrees with
integral travel stops)
Acceptable Valve Shaft Diameters, mm (Inches)
F and G mounting: J 12.7 (1/2), J 15.9 (5/8), or J
19.1 (3/4)
H mounting: varies—uses 22.2 mm (7/8 inch) output
shaft with two flats
J mounting: J 9.5 (3/8), J 12.7 (1/2), or 15.9 (5/8)
Stroking Time
Dependent of actuator size, rotation, spring rate,
initial spring compression, supply pressure, and size
1. The pressure/temperature limits in this manual and any applicable standard or code limitation for valve should not be exceeded.
2. Use this value to determine the maximum torque output allowed.
3. Volume when the diaphragm is in the up position.
4. Includes clearance volume.
5. NBR (nitrile) O‐rings are used in the optional top‐mounted handwheel and in the optional up travel stop assembly.
6. For higher temperature ratings, contact your Emerson sales office.
7. 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.
Do not install, operate, or maintain a 1051 or 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
proceeding.

Description

1051 and 1052 Size 33 spring‐and‐diaphragm actuators are used on rotary‐shaft valve bodies for throttling or on‐off
applications. The 1051 may be used for on‐off service without a positioner or for throttling service with a positioner.
2
Diaphragm Casing Displacement
Material Temperature Capabilities
(1, 2)
(1, 7)
Travel Indication
Pressure Connections
Mounting Positions
Approximate Weights
Emerson sales office
of supply piping. If stroking time is critical, consult
your Emerson Automation Solutions sales office.
(3)
Clearance Volume : 623 cm
(4)
Casing Volume
90 Degree Rotation: 2390 cm
60 Degree Rotation: 1890 cm
NBR (nitrile) Diaphragm or O‐rings
-40 to 82_C (-40 to 180_F)
VMQ (silicone) Diaphragm:
-40 to 149_C (-40 to 300_F)
POM (polyoxymethylene) Push Rods and Guides
(used with lever‐operated switches):
(6)
-40 to 82_C (-40 to 180_F)
Graduated disc and pointer
Standard: 1/4 NPT internal
Optional: J 1/2 or J 3/4 NPT internal
See figure 2
1051: 20 kg (45 pounds)
1052: 21 kg (46 pounds)
or Local Business Partner before
Instruction Manual
D101322X012
3
(38 cubic inches)
3
(146 cubic inches)
3
(115 cubic inches)
(1)
(5)
: