Powell Fabrication & Manufacturing, Inc.

Low Torque Emergency Gas Valve Shutdown System

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Why the UniPro™ LT? Can’t I just turn down the pressure to operate the soft seat/low torque angle plug valves with the UniPro™ Standard?


No. Reducing the pressure far enough to achieve only 30 lb-ft of torque from the UniPro™ Standard actuator will result in an operating pressure below the threshold pressure of the air motor used in the actuator. When activated below its threshold pressure, the air motor may or may not start to turn. In this case, there is a chance that the actuator would not close the valve! The pressure regulator on the UniPro™ Air Control Unit should be checked and adjusted to 90 psig when it is installed. It should then be locked in place and left at that pressure.

UniPro Low Torque

UniPro™ LT

UniPro™ LTR

System Components

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