Fluid handling – Destructible or deformable element controlled – Destructible element
Patent
1995-10-05
1997-11-11
Rivell, John
Fluid handling
Destructible or deformable element controlled
Destructible element
1375122, F16K 1714
Patent
active
056853297
ABSTRACT:
A toxic and corrosive fluid monitoring relief valve is formed by a valve body containing inline fluid pressure relief valves respectively opened in response to a first and a second fluid pressure. Fluid pressure in excess of the first fluid pressure opens the first valve by rupturing a pin normally maintaining the first valve closed to allow fluid contained by the valve body, to act on the second downstream relief valve. The second downstream valve being spring-loaded to open at the second predetermined fluid pressure and exhaust fluid pressure in a blow down action and reclose the valve when the excess fluid pressure has been reduced.
REFERENCES:
patent: 2098399 (1937-11-01), Munson
patent: 2575944 (1951-11-01), Conner
patent: 3595263 (1971-07-01), Greenlaw
patent: 3742926 (1973-07-01), Kemp
patent: 3776251 (1973-12-01), Trubman
patent: 3916946 (1975-11-01), Motzer
patent: 4317470 (1982-03-01), Taylor
patent: 4549565 (1985-10-01), Short, III
Catalog number 306 dated Nov. 1989 and distributed by Crosby Valve and Gage Company of 43 Kendrick Street, Wrentham MA.
Rhea Robert K.
Rivell John
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