Seal leakage monitoring device and method

Details Seal leakage monitoring device and method Seal leakage monitoring device and method

1992-06-24

1994-09-13

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

137312, 137557, G01M 328

Patent

active

053458125

ABSTRACT:
A device for monitoring for fluid leakage in a double stem seal valve (24). The valve housing (25), stem (28), primary stem seal (30), and secondary stem seal (34) define a chamber (36) bounded therebetween. A pressure gauge (44) having a pointer (48) for registering and retaining a maximum pressure reading is mounted on the valve (24) and via a port (38) is in fluid communication with the chamber (36). Fluid leakage into the chamber (36) sufficient to increase the chamber pressure can be registered and retained by the pointer (48), indicating the failure of the primary stem seal (30) and the occurrence of a leak.

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