Top entry ball valve and a clamp therefor

Details Top entry ball valve and a clamp therefor Top entry ball valve and a clamp therefor

1985-06-24

1987-04-21

Chambers, A. Michael

Valves and valve actuation

Rotary valves

Ball valve

251159, 251174, 251316, 137316, F16K 506

Patent

active

046589783

ABSTRACT:
A top entry ball valve is proposed which has a valve body formed with a valve chamber, a valve mounted in the valve chamber, a seat ring at the low-pressure side, and a seat ring assembly having another seat ring, a belleville spring and a seat ring holder at the high-pressure side. The seat ring assembly can be easily mounted into and removed out of the valve chamber by use of a clamp while comprising the belleville spring. The clamp comprises a pair of clamping pieces fastened together with a bolt.

REFERENCES:
patent: 1453863 (1923-05-01), Conard
patent: 2664267 (1953-12-01), Ray
patent: 2883146 (1959-04-01), Knox
patent: 3134396 (1964-05-01), Bredtscheider
patent: 3281112 (1966-10-01), Walker
patent: 3497177 (1970-02-01), Hulsey
patent: 3736629 (1973-06-01), Blake
patent: 3771545 (1973-11-01), Allen
patent: 4151855 (1979-05-01), Levin et al.
patent: 4390039 (1983-06-01), Johnson et al.

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