Valve seal assembly

Details Valve seal assembly Valve seal assembly

1984-06-13

1985-03-26

Weakley, Harold W.

Valves and valve actuation

With means to increase head and seat contact pressure

Seat pressed to valve

251363, 277129, F16K 2500

Patent

active

045068640

ABSTRACT:
A valve has an externally threaded valve seat sleeve being axially slidably received in a cavity of the valve housing. The sleeve has an end face forming a seat for a valve head and is surrounded by a seal assembly which has a sealing ring being in circumferential engagement with the valve seat sleeve and a part of the housing walls; an abutment mounted on the valve seat sleeve for abutting the sealing ring to prevent an axial displacement thereof in one direction relative to the valve seat sleeve; and an internally threaded sleeve surrounding and threadedly engaging the valve seat sleeve. The internally threaded sleeve has an annular part cooperating with the sealing ring. There is further provided a force transmitting arrangement for applying a torque to the internally threaded sleeve in response to a force applied externally of the valve for rotating the internally threaded sleeve with respect to the valve seat sleeve to axially press the internally threaded sleeve against the sealing ring.

REFERENCES:
patent: 2324225 (1943-07-01), Mueller
patent: 3269691 (1966-08-01), Meima
patent: 3891183 (1975-06-01), Feiring
patent: 4319734 (1982-03-01), Acar

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