Top 10 Best Backflow Prevention Valve

Inner Spring Blocks Reverse Flow In Piping Systems. Heavy Duty Cast Brass Body And Disc Dezincification Resistant Corrosion Resistant Lead Free. Threaded Ends Comply With ANSI.B2.1. CSA Approved Conforms To NSFANSI-61372. 200 PSI CWP Non-Shock.

Made for smaller supply lines and ideally suited for laboratory equipment, processing tanks, sterilizers, dairy equipment and similar applications to prevent backflow. Suitable for use on hot or cold water and can be used under continuous pressure temperature range 33F 250F 0.5C 121C, maximum working pressure 175psi 12.1 bar, minimum required pressure 25psi 1.7 bar. Features a primary check valve utilizing a rubber disc seating against a mating rubber part to ensure tight closing and a secondary check valve utilizes a rubber disc-to-metal seating. Construction is bronze body with stainless steel working parts, integral strainer and durable rubber discs. To be installed at referenced cross-connections vertically or horizontally.

Inner Spring Blocks Reverse Flow In Piping Systems. Heavy Duty Cast Brass Body And Disc Dezincification Resistant Corrosion Resistant Lead Free. Solder Ends Comply With ANSI.B16.18. CSA Approved Conforms To NSFANSI-61372. 200 PSI CWP Non-Shock.

Prevent sewage backup into a residence or building. Easy to perform maintenance and inspection from ground level. -InchHands-off-Inch cleaning. Meetts all model construction and pumbing codes. NO costly manholes- direct bury upto 12 ft.

Tilting Disc Blocks Reverse Flow In Piping Systems. Heavy Duty Cast Brass Body And Disc Dezincification Resistant Corrosion Resistant Lead Free. Threaded Ends Comply With ANSI.B2.1. CSA Approved Conforms To NSFANSI-61372. 200 PSI WOG 125 PSI WSP.

Garden Hose Backflow Preventer MaterialThe material of bib hose backflow preventer is use solid 100 heavy duty brass,safety and duable.The hose bib vacuum breaker is high temperature ductility and low magnetic permeability.Meets ASSE 1011CSA B64.2 and ANSINSF 61-9 Standard.. Garden Hose Vacuum Breaker FeatureWHK Vacuum Breaker will prevent unclean water into drinking Manually drain the faucet and block water from freezing and Anti-siphone. 34-Inch self draining vacuum, breaker, Male hose thread, Break-off screw for permanent attachment.. Vacuum breaker Valve Size34-inch female hose threaded inlet,34-inch male hose threaded outlet.The -Inch thread outlet is apply for most of standard hose and end valves including hose bib, sillcocks, wall faucets,RV water lines and garden hose.. Garden Hose Check Valve Application Condition Max operating pressure is 125 psi Max operating temperature is 180F82C.. 100 Satisfaction Service and Package includesYou will receive 2 PCS hose backflow preventer1 PC Tape2 additional washers.If you are not completely satisfied our products,we will give you a replacement or a refund..

LEAK-FREE Features Secure, Leak-Free Solvent Connections. STAINLESS STEEL SPRING LOADED CHECK Prevents Backflow in Your Cold Water Pipes Not Recommended for Potable Water. SPECIFICATIONS Cracking Pressure .5 PSI 150 PSI at 73 Temperature Range 41- 140 ISO 9002 Approved Manufacturer ANSI.B1.20.1 and ASTM F1970 Approved. IDEAL FOR FLOW CONTROL IN Landscaping Sprinklers, Pools, Water Park, Aquarium, ETC. Can Be Installed Vertically and Horizontally.. PVC PIPING PVC Piping Systems Feature Improved Performance, Increased Safety, and Better Rust and Corrosion Resistance when Compared with Steel Piping Systems.

Prevent sewage backup into a residence or building. Easy to perform maintenance and inspection from ground level. Meets all model construction and plumbing codes. NO costly manholes- direct bury up to 12 ft..

Installed at or near meters to cost-effectively control water pressure flowing to appliances and outlets in residential, commercial and industrial settings. Features a lead-free brass body an NPT threaded union female inlet by NPT female outlet connection an integral stainless steel strainer removable for cleaning a thermoplastic seat a bronze-sealed spring cage for accessible outdoor waterworks or pit installations and a thermal expansion bypass. Easily serviced for long-lasting life. Size is 7.38 x 5.63 x 2.44 inches.