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Class Information
Number: 137/505.24
Name: Fluid handling > Line condition change responsive valves > With separate connected fluid reactor surface > With opening bias (e.g., pressure regulator) > Through external pipe > Adjustable external lever
Description: Device in which a lever extending out of the casing provides the means of connecting the reactor and valve head, and also provides an adjustable biasing means.

Patents under this class:

Patent Number Title Of Patent Date Issued
8336577 Pressurized gas containing system Dec. 25, 2012
5509449 Control of fluids Apr. 23, 1996
4344491 Apparatus for actuating downhole flow control valves Aug. 17, 1982

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