Catalog: Water Regulators and Blackflow Preventers & Meters
Company/Brand: Duff Company
pressure relief check valve in Water Regulators and Blackflow Preventers & Meters by Duff Company
examples type purpose 1 2 3 4 reduced pressure zone back two independent check valves ... to main supply lines with intermediate relief valve backpressure or back siphonage ... connections supplied with shut-off valves where there is a high potential lab ... health contamination and continuous pressure applicawaste digesters continuous ... pressure tion car washes reduced pressure detector assy high hazzard rpz valve ... all cross-connections subject to double check valve assembly two independent check ... valves backpressure or back siphonage for low ... health contamination and continuous pressure applica checks are replaceable for ... repair testing continuous pressure tions main supply lines food cookers ... fire sprinkler systems double check detector assy preventers with a water ...

full port resilient seated bronze ball valve 175 psi 140of bronze body construction ... modular design replaceable seats ball valve test cocks easily serviced with no ... out principal provides high capacity relief valve discharge during the emergency ... of combined back-siphonage and back pressure with both checks fouled epoxy coated ... cast iron check valve body with bronze seats 175 psi to 140of ... line entrance two inline independent check valves with an intermediate relief ... valve modular construction replaceable seats ... 1 1 1/4 -3 4 -6 watts n36 vacuum relief valve for water service automatically ... also suitable for steam service max pressure 15 psi size weight fig no price 1/2 3/ ... test kit for testing all reduced pressure zone backflow preventers accurate ...

-backflowpreven ters-meters reduced pressure zone backflow preventers relief valve ... when ordering please specify fig no and valve size fig no relief valve rubber parts ... 85660 85661 85662 85663 relief valve total 64689 85665 85666 85667 total ... 8 10 4 10 kit consists of lower check stem o-ring 6 only check disc cover o ...