Gate valve with spring assisted valve liner

Details Gate valve with spring assisted valve liner Gate valve with spring assisted valve liner

1995-05-05

1996-12-10

Chambers, A. Michael

Fluid handling

With casing, support, protector or static constructional...

Jacketed

251367, 251328, 251174, F16L 700

Patent

active

055822002

ABSTRACT:
The valve assembly 20 has two housing halves 22 which are bolted together to form a housing 24 for two resilient valve liners 26 with coaxial through passages 28 for the flow of fluids through the assembly. A metal gate 30 selectively blocks the through passages 28. Each valve liner 26 has a radially extending flange 32 in which is embedded a frustoconical metal spring 34 which biases the flanges against the gate 30 and retains a seal about the gate in a valve closed configuration. The assembly has a split seat formed by two seat inserts 36 retained in the housing halves 22 beneath the valve liners 26. The seat inserts 36 are open to the bottom of the housing 24 and permit debris to be ejected from the valve assembly 20. The spring may be formed to have ends which are not connected and positioned by inserting a locator tab on the exterior flange of the liner into a corresponding depression in the valve housing.

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The Clarkson Company KGA Valve Selection and Ordering Guide.

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