Value for controlling flow of cryogenic fluid

Details Value for controlling flow of cryogenic fluid Value for controlling flow of cryogenic fluid

1995-06-05

1996-12-24

Nguyen, Hoang

Valves and valve actuation

With material guide or restrictor

Movable or resilient guide or restrictor

251903, F16K 4700

Patent

active

055867456

ABSTRACT:
A valve is provided for accurately controlling the flow of cryogenic fluids such as liquid nitrogen. The valve comprises a combination of disc and needle valves affixed to a valve stem in such a manner that the disc and needle are free to rotate about the stem, but are constrained in lateral and vertical movements. This arrangement provides accurate and precise fluid flow control and positive fluid isolation.

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