Ball valve with modular check valve assembly and access port

Details Ball valve with modular check valve assembly and access port Ball valve with modular check valve assembly and access port

1993-12-03

1994-12-20

Fox, John C.

Fluid handling

Systems

Flow path with serial valves and/or closures

137543, F16K 506

Patent

active

053738683

ABSTRACT:
A ball valve is provided with an internal check valve which is of modular construction and with an external valve casing that includes a lateral extension defining an access port. The modular check valve assembly is threadably connected to the ball and the lateral extension is closed with a threadable closure. The threadable closure for the lateral extension and the threadable check valve assembly both have sockets to receive access tools and both sockets preferably have the same unique tamper proof configuration to receive the same access tool.

REFERENCES:
patent: 1159347 (1915-11-01), Angell
patent: 1890223 (1932-12-01), Kilzer
patent: 3854497 (1974-12-01), Rosenberg

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