6 results for duff company check valve found in 0.000 seconds

duff co regulators-backflowpreven ters- ... pressure zone back two independent check valves all cross-connections subject to ... supply lines with intermediate relief valve backpressure or back siphonage ... connections supplied with shut-off valves where there is a high potential lab ... pressure detector assy high hazzard rpz valve backflow preventers with a water meter ... all cross-connections subject to double check valve assembly two independent check ... valves backpressure or back siphonage for low ... and continuous pressure applica checks are replaceable for repair testing ... fire sprinkler systems double check detector assy preventers with a water ... meter and double check in by pass low hazzard line dual check ... valve backflow preventer for low hazard cross ...

duff co regulators-backflowpreven ters- ... continuous pressure applications double check design providing dependable protection ... highest downstream point of water this valve is designed to prevent backsiphonage of ... serves as both antisiphon and check valve ball size fig price no valve test cocks ... no 48538 8717 8720 price watts 7 dual check backflow preventer for water supply ...

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 ... 3/4 44 473/8 8643 8644 8645 8646 8647 duff co watts 909 sizes 2 1/2 to 10 air in ... principal provides high capacity relief valve discharge during the emergency ... -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 ... /4 -3 4 -6 watts n36 vacuum relief valve for water service automatically vents a ... accurate testing of zone and relief valve opening differential fouled check ... valves or similar problems that visual ...

duff co regulators-backflowpreven ters- ... cover o-ring and lubricant series 909 check valves kit first check kits oem 887120 ... no 60477 60478 60479 60480 price second check kits size 3/4 1 1 1/4 2 3/4 1 1 ... please specify figure number and valve size kit consists of relief valve ... rk 909 vt 1 1/4 2 series 909 relief valve kits fig no 60481 60482 price when ... please specify figure number and valve size rubber goods only kits oem 887130 ...

regulators-backflowpreven ters-meters duff reduced pressure zone backflow ... for wilkins zurn combraco febco hersey check valve kits when ordering please specify ... fig no and valve size fig no kit no first check kits ... 85639 rk909ck1 85640 rk909ck1 second check kits size 2 1/2 3 4 6 8 10 price ... fig no kit no size first check rubber parts kits 85646 rk909rc1 2 1/2 ... rk909rc1 8 85650 rk909rc1 10 second check rubber parts kits kit consists of lower ... check stem o-ring 6 only check disc cover o-ring and lubricant price ... 8 85655 rk909rc2 10 cover kits for checks kit contains of cover cover o-ring and ...

duff co regulators-backflowpreven ters- ... zone backflow preventers relief valve kits 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 ...