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REV. STV20110519
2.2.4.2 Plastic Pneumatic Actuators
For valves 12 (1/2”), 25 (1”), 38 (1-1/2”), 51 (2”), and 76 (3”)
The sensors available are:
Open, micro-switch
Open/Close, micro-switch
Open, inductive proximity switch
Open/close, inductive proximity switch
In order to assemble switches follow these steps:
1.
Loosen set screw on instrumentation body.
2.
Remove duplication system from instrumentation body.
3.
Check that seals are properly seated and undamaged.
4.
Unscrew and remove transparent plastic cap on top of actuator.
5.
Apply air to position actuator rod to the top position.
6.
Unscrew and remove yellow visual indicator.
7.
Screw duplication system into actuator rod.
8.
Tighten adapter until contact is made with top of the actuator.
9.
Fully tighten duplication system rod on actuator rod with screwdriver.
10.
Depressurize actuator to return to default position.
11.
Insert instrumentation body onto duplication system, making sure not to damage contact
levers on switches.
12.
Tighten set screw on instrumentation body
13.
Wire according to manufacturer instructions.
