Instant hose coupling, with a double-sided shutoff valve

Details Instant hose coupling, with a double-sided shutoff valve Instant hose coupling, with a double-sided shutoff valve

F - Mech Eng,Light,Heat,Weapons

16

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284/2

F16L 29/00 (2006.01) F16L 37/22 (2006.01) F16L 37/40 (2006.01)

Patent

CA 1264781

ABSTRACT OF THE DISCLOSURE: An instant coupling comprises a male element and a female element which comprises a chamber containing a valve provided with a first sealing surface which, when pressurised water is present, rests against a seat and shuts-off water delivery when the male element is not inserted, and a second sealing surface below the first and arranged to rest against a respective seat under the action of any momentary negative pressure arising in the water feed hose, in order to prevent undesi- rable fluids being drawn in when the male element is inserted.

497299

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