Valve leakage inspection, testing and maintenance process

Details Valve leakage inspection, testing and maintenance process Valve leakage inspection, testing and maintenance process

1988-10-26

1990-04-17

Williams, Hezron E.

Measuring and testing

With fluid pressure

Leakage

73 40, 277 2, G01M 326

Patent

active

049169386

ABSTRACT:
A valve maintenance process is described that allows for the inspection and testing of valve stem packing and back-seat leakage. The process uses the characteristics of incompressible fluid flow to check the integrity of the valve back-seat, to allow the controlled removal of the complete packing set and to confirm the newly installed packing set is not leaking. The process is designed to reduced down-time and to improve the engineering quality of valve repair.

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patent: 4537407 (1985-08-01), Jansen et al.
patent: 4766765 (1988-08-01), Ezekoye

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