Needle valve assembly

Details Needle valve assembly Needle valve assembly

1975-10-06

1977-04-26

Rosenthal, Arnold

Fluid handling

Systems

Flow path with serial valves and/or closures

251368, 251205, F16K 152

Patent

active

040195341

ABSTRACT:
A low flow needle valve assembly is described having a non-metallic valve stem guide and a cross-flow system such that fluid flow occurs over only metallic metering surfaces. The valve assembly is particularly advantageous in view of its low cost and its smooth, non-reversing flow characteristics which result in precise control of extremely low fluid flow rates.

REFERENCES:
patent: 1230777 (1917-06-01), Quandt et al.
patent: 1919856 (1933-07-01), McGeorge
patent: 2944567 (1960-07-01), Jaskerzec
patent: 3067768 (1962-12-01), Burg
patent: 3910553 (1975-10-01), Boylan

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