Valve assembly for pressurized fluid systems

Details Valve assembly for pressurized fluid systems Valve assembly for pressurized fluid systems

1979-05-29

1981-08-11

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Direct response valves

137512, 13753311, 251368, F16K 1504

Patent

active

042828970

ABSTRACT:
Disclosed is a valve assembly having a housing defining a flow passage with an inlet port and a shoulder surrounding the port. The shoulder is chamfered in an upstream direction. A valve seat formed of a gold material, preferably 24 karet gold, is disposed on the shoulder. The margin of the seat about its central opening is deformed in an upstream direction against the chamfer. A sapphire ball seats against the deformed seat to seal the flow passage through the valve assembly.

REFERENCES:
patent: 720100 (1903-02-01), Bashlin
patent: 1388602 (1921-08-01), Rotteleur
patent: 1953007 (1934-03-01), Farmer
patent: 2394272 (1946-02-01), Thiel
patent: 3148707 (1964-09-01), Smyklo
patent: 3160391 (1964-12-01), Medicus
patent: 3489171 (1970-01-01), Michael
patent: 3770001 (1973-11-01), Davis
patent: 4094337 (1978-06-01), Robinson
patent: 4139469 (1979-02-01), Rainin
patent: 4197875 (1980-04-01), Schieferstein

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