F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 24/04 (2006.01) E03B 7/07 (2006.01) F16K 7/17 (2006.01) F16K 24/00 (2006.01) F16K 31/126 (2006.01)
Patent
CA 2187601
A gas purge valve comprising a housing provided with an inlet for connecting to a liquid system to be purged. A flexible diaphragm formed with an aperture of restricted dimension is maintained in the housing dividing it into first and second chambers, the first chamber communicating with the inlet. A pilot valve controlled first outlet is formed in the second chamber and a second outlet is formed in the first chamber. There is also provided a diaphragm seating formed in the first chamber, being engageable by said diaphragm so as to seal said second outlet; the arrangement being such that the pilot valve is displaceable between a first position in which gas is discharged from the second chamber so as to vent the second chamber and a second position in response to liquid presence, so as to seal the first outlet. The diaphragm is displaceable in response to differential pressure created by the venting into unsealing the second outlet for full venting of the first chamber.
A.r.i. Kfar Charuv
Smart & Biggar
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