Spring-assisted split seat gate valve

Details Spring-assisted split seat gate valve Spring-assisted split seat gate valve

1994-06-29

1995-05-09

Chambers, A. Michael

Fluid handling

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

Jacketed

251367, 251328, 251174, F16L 700

Patent

active

054131405

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 travels vertically within the housing 24 to selectively block 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. An alternative embodiment valve assembly has a wave spring which applies a force through an embedded ring to bias the valve liners against the gate.

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The Clarkson Company KGA Valve Selection and Ordering Guide.

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