Integrated control safety valve means

Details Integrated control safety valve means Integrated control safety valve means

1986-12-08

1988-01-05

Cohan, Alan

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

137495, G05D 1600, F16K 31122

Patent

active

047169273

ABSTRACT:
Control safety valve means for an enclosure containing a pressurized fluid. With the cylindrical chamber, the piston defines a pressure chamber for closing the main valve, the pressure chamber being linked with the enclosure by a passage. The piston has a face directed towards the closing pressure chamber A of the main valve, and the surface of the piston face directed towards the main valve closing chamber is greater than the surface of the main valve directed towards the enclosure. The main valve is located on the side of the outlet with respect to the seat of the valve means.

REFERENCES:
patent: 3771553 (1973-11-01), Huet
patent: 4129141 (1978-12-01), Vogeli
patent: 4519416 (1985-05-01), Chaouloff
patent: 4552173 (1985-11-01), Vaura
patent: 4586533 (1986-05-01), Estes
patent: 4615356 (1986-10-01), Reip

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