Mounting and operating instructions for Air Torque’s complementary part for Rack and Pinion and Scotch Yoke Actuators

BLOCK AND SAFETY LOCK-OUT SYSTEM PARTIAL STROKE SYSTEM BLOCK TO SUIT AIR TORQUE QUARTER TURN RACK & PINION PNEUMATIC ACTUATOR

The BS-LS locks the valve in open or close position (as a safety, when for example service is done, not to accidentally activate the valve).

The BS-PS locks the valve in a small range of movement (i.e., allows it to move a certain degree). By limiting this range, allowing partial stroke test of actuator, one can for example check that the valve is not stuck and still functions.

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