Sewer relief valve

Details Sewer relief valve Sewer relief valve

F - Mech Eng,Light,Heat,Weapons

16

K

137/15

F16K 31/18 (2006.01)

Patent

CA 1212884

"SEWER RELIEF VALVE" Abstract of the Disclosure An improved sewer relief valve which is vandal-proof and automatically opens responsive to a back flow of sewage and drain water within a plumbing system.

462376

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