Measuring and testing – Instrument proving or calibrating – Fluid pressure
Patent
1997-02-12
1999-01-05
Brock, Michael
Measuring and testing
Instrument proving or calibrating
Fluid pressure
73 163, G01L 2700
Patent
active
058566155
ABSTRACT:
A testing mechanism for testing the pressure at which a relief valve will open due to excessive pressure in a fluid system having fluid carrying conduits, the mechanism includes a stop member having a first position whereat the stop member exposes the relief valve to the fluid system and a second position whereat the stop member seals or isolates the relief valve from the fluid system during a test of the relief valve. A pressure gauge is positioned between the stop member and the relief valve for sensing the pressure of fluid engaging the relief valve when the stop member is in the second position. A pressure applying mechanism applies pressure to the relief valve when the stop member is in the second position. A barrier positioned between the pressure applying mechanism and the relief valve prevents fluids other than fluid within the fluid system from engaging the relief valve when the pressure applying mechanism is actuated. The stop member is coupled with the barrier for automatically isolating the relief valve from the fluid system when the pressure applying mechanism is actuated.
REFERENCES:
patent: 3269170 (1966-08-01), Sebring et al.
patent: 3485082 (1969-12-01), Myers
patent: 3768299 (1973-10-01), Garren
patent: 4766765 (1988-08-01), Ezekoye
patent: 4852387 (1989-08-01), Bingham
Brock Michael
Fayyaz Nashmiya
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