Fisher 1052PSV, Инструкция по эксплуатации, Страница: 3 / 24

Instruction Manual
D103407X012
1052PSV Actuator
May 2011
3
Table 2. Recommended Bolting Torques
Description, Key Number Size Wrench Size N
S
m lbf
S
ft
Diaphragm Casing, 5 3/8‐24 9/16 27 20
Casing to Actuator Box, 7, 8 3/8‐16 9/16 41 30
Diaphragm Plate to Rod, 9 3/4‐16 5/8 Allen 102 75
Rod end bearing locknut, 16 5/8‐18 15/16 61 45
Rod end bearing to lever, 18 5/8‐11 15/16 163 120
Lever Clamp, 28 5/8‐11 15/16 163 120
Cover, 34 1/2‐13 3/4 81 68
Turnbuckle locknut, 58 7/8‐14‐LH 1-5/16 163 120
Travel stop hex nut, 21 7/8-9 1-7/16 237 175
Protective Bracket to Actuator Box, 23 3/8­16 9/16 41 30
Accessory Mountings
Positioner – Sckt Hd Cap Screw 5/16­18 5/16 23 17
546 to Bracket – Hex Hd Cap Screw 5/16­18 1/2 23 17
546 Bracket to Actuator box – Hex Hd Cap Screw 3/8­16 9/16 41 30
2625 V­blocks to Actuator Box – Hex Hd Cap Screw 5/16­18 1/2 23 17
67CFSR to Actuator Box – Hex Hd Cap Screw 5/16­18 1/2 23 17
GO Switch Mounting
Go Switch Bracket – Hex Nut 5/16­18 1/2 23 17
Go Switch to Bracket – Hex Nut 5/8­18 15/16 47 35
Target Magnet to Trip Arm Bracket – Hex Nut 7/16­20 11/16 47 35
Trip Arm Bracket to Hub – Socket Hd Cap Screw 8­32 9/64 3.4 2.5 (30 lbf­in)
Description
The 1052PSV diaphragm rotary actuator is a pneumatic spring‐return actuator for use with the SS-84PSV4 rotary‐shaft
control valve. The 1052PSV actuator can be used for on‐off service, or it can be used for throttling service when
equipped with or without a valve positioner. The 1052PSV actuator spring is adjustable (see figure 2).
Principle of Operation
The diaphragm rod moves down as loading pressure is increased on top of the diaphragm. As the loading pressure is
decreased, the spring forces the diaphragm rod upward.
The spring and diaphragm have been selected to meet the requirements of the application and, in service, the
actuator should produce full travel of the valve with the diaphragm pressure as indicated on the nameplate.
Consult the separate positioner instruction manual for actuator principle of operation with positioner.
Specifications
Specifications are shown in table 1. Specifications for actuator operation, as it originally comes from the factory, are
stamped on the nameplate attached to the actuator.
Installation
When an actuator and valve body are shipped together, the actuator is normally mounted on the valve. Follow the
valve body instructions when installing the control valve in the pipeline, and then perform the procedures presented in