Leak test system

Details Leak test system Leak test system

1995-01-27

1997-04-15

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

73 46, G01M 308

Patent

active

056211643

ABSTRACT:
A leak test system is disclosed for a double block and bleed valve arrangement, the system including a second vent valve disposed along the bleed line and a secondary gas supply line connected to the bleed line for introducing gas at a known pressure into the bleed line to test the valves and ensure that they are not leaking. A pressure switch and pressure gauge monitor are positioned to monitor the pressure within the bleed line. The pressure switch activates an alarm if the pressure in the bleed line changes, thereby indicating a leak. A method for testing each valve in the arrangement is also disclosed.

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Gas Safety Shutoff Valve Leak Testing Procedure, Coen Instruction Manual.

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