Union bonnet valve

Details Union bonnet valve Union bonnet valve

1977-05-06

1979-04-17

Schwadron, Martin P.

Valves and valve actuation

Mechanical movement actuator

Particularly packed or sealed

251223, 137315, F16K 3150

Patent

active

041496990

ABSTRACT:
A union bonnet valve wherein the valve body is provided with a female threaded recess for receiving an inverted union bonnet nut securing the bonnet of the valve in the valve body. At the inner end of the threaded recess, the valve body is provided with an outwardly facing sealing shoulder and the bonnet is provided with a complementary inwardly facing shoulder secured in sealing engagement with the body shoulder by the bonnet nut. The valve further includes a stem extending outwardly through the bonnet and a sealing structure at the outer end of the bonnet for movably sealing the stem to the bonnet while yet permitting facilitated servicing of the sealing structure when desired. The metal-to-metal seal of the bonnet to the valve body shoulder provides a high pressure seal.

REFERENCES:
patent: 682688 (1901-09-01), Hart
patent: 1114995 (1914-10-01), Langley et al.
patent: 1573108 (1926-02-01), Williston
patent: 2310588 (1943-02-01), Teeters et al.
patent: 2319404 (1943-05-01), Hoeh
patent: 2497354 (1950-02-01), Hackathorn
patent: 3269698 (1966-08-01), Koch

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