WebView All Fire and General Brassware. Fire Brassware. General Brassware. ... Zurn manufactures a complete line of Backflow Prevention products including Single Check Valve, Double Check Valves and Dual Check Valves ... Customer Service: 1300 00 9876; Online Contact Form; Support; Follow Us. LinkedIn; WebOur brass check valves are equipped with a spring loaded clapper assembly making it applicable for vertical or horizontal installations. These check valves have a 1/2" tap (4" …
6" Double Check Detector Assembly (709 OSY-CFM)
WebMay 22, 2024 · For most fire sprinkler systems, NFPA 13 requires a 4-inch pipe for the FDC and the FDC is required to have two inlets. There is no other criterion in NFPA 13 requiring more than two connections.... WebThe Zurn Wilkins 350A Double Check Valve Backflow Preventer provides low hazard protection for all market segments. The grooved, epoxy coated ductile iron body is available with multiple shut-off valve options for installation versatility. Specs and Installation BIM Resources Short lay-length for small space installation lawnboy service
Backflow Preventer Requirements, Fire Protection Systems
WebNov 30, 2024 · In fire protection systems, there are two types of backflow preventers. Backflow preventers with a double check valve (DCV) are commonly used in low-danger circumstances where cross-contamination … Weba leaking #2 check valve. Proof that the #2 check valve leaks is a 2.31 ft. column of water is not being supported. 1.4.4 Use the previous reading, (refer to 1.4.2), to evaluate the condition of the #1 check valve. 1.4.5 Stop the test, repair #2 check valve and retest the entire assembly. Test #2 – Testing the #2 Check Valve: WebDouble Check Backflow Preventer. Specs and Installation. Where to buy. Best Seller. lawn boy serial number lookup