Toggle gate valve

Details Toggle gate valve Toggle gate valve

1982-08-23

1985-01-01

Weakley, Harold W.

Fluid handling

With leakage or drip collecting

251169, 251203, 137315, F16K 2300

Patent

active

044911459

ABSTRACT:
A toggle gate valve having a double block and bleed retractable sealing configuration which utilizes accurately positioned steel inserts as trim assembly guide plates to permit a significant reduction in valve body machining. The valve body as well as removable upper and lower bonnets form a pressure boundary that houses a toggle link actuated seal plate to close the valve and a through-conduit that is coaxially aligned with the input and output ports when the valve is opened. A novel stem configuration and removable through-conduit permit field servicing of the trim assembly (plug and seal plate) by means of access through the lower bonnet/body interface.

REFERENCES:
patent: 1707125 (1929-03-01), Loffler
patent: 2265175 (1941-12-01), Kinzie
patent: 2614792 (1952-10-01), Trefil
patent: 3170668 (1965-02-01), Aulisa
patent: 3258243 (1966-06-01), Bryant
patent: 3768773 (1973-10-01), Stephens
patent: 4067352 (1978-01-01), Halpine
patent: 4314579 (1982-02-01), Wheatley

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