Quarter-turn valve

Details Quarter-turn valve Quarter-turn valve

1988-02-08

1990-01-02

Fox, John

Valves and valve actuation

Rotary valves

Plug

137327, 251900, 251904, F16K 504

Patent

active

048908177

ABSTRACT:
A quarter-turn valve comprises a housing formed with a cylindrical socket, and a cylindrical plug receivable within the socket and having a bore extending diametrically through the plug for establishing communication between the inlet and outlet nipples in the open position of the plug, but terminating the communication when the plug is turned to its closed position one-quarter turn from the open position. The plug is formed with a finger-piece projecting from the housing for manually rotating the plug to its open, closed or an intermediate position. The plug is closed at its bottom, such that the fluid flowing through the bore subjects the plug to a fluid pressure which is balanced on all sides of the plug, thereby facilitating turning of the plug and preventing its accidental ejection when subjected to a high pressure.

REFERENCES:
patent: 2994341 (1961-08-01), Leopold, Jr. et al.
patent: 3481367 (1969-12-01), Deuschle
patent: 3802457 (1974-04-01), Wurzburger
patent: 4073314 (1978-02-01), Speelman et al.
patent: 4262880 (1981-04-01), Danko et al.
patent: 4524807 (1985-06-01), Toliusis

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