Diaphragm-sealed valve with process purging groove

Details Diaphragm-sealed valve with process purging groove Diaphragm-sealed valve with process purging groove

2011-04-26

2011-04-26

Lee, Kevin L (Department: 3753)

Fluid handling

Processes

Cleaning, repairing, or assembling

C137S240000, C251S331000

Reexamination Certificate

active

07931043

ABSTRACT:
A diaphragm-sealed valve provided with a valve cap and a valve body, a diaphragm and a plunger assembly. The diaphragm is compressibly positioned between the valve cap and the valve body. The valve body comprises a process purging channel extending along a main recess of the valve body, under a pre-formed deformation of the diaphragm. A process purging inlet passage and a process purging outlet passage, both opening on the process purging channel, allow for a purging gas to flow in the process purging channel.

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