High pressure letdown valve

Details High pressure letdown valve High pressure letdown valve

F - Mech Eng,Light,Heat,Weapons

15

D

137/130, 196/36

F15D 1/08 (2006.01)

Patent

CA 1198651

ABSTRACT OF THE DISCLOSURE A letdown valve is featured which maintains a smooth flow of furnace effluent, Liquid passing through the throat of the valve is throttled, and a portion is caused to flash to vapor. The valve is designed to allow for subsonic flow of the vapor under all process conditions. A quenching fluid is also added to the liquid passing through the throat in order to cool the liquid. The quenching fluid is directed in a manner to maintain operating freedom of the movable plug and enhance the valve service life.

421547

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