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Backflow Prevention
Backflow is a reversal of the normal direction of water flow in a water supply plumbing system.
It occurs when the water delivery main is at a lower pressure than the internal plumbing system (back siphonage). Back siphonage can occur when there is a burst or ruptured water main, or due to excessive demand during fire-fighting operations or other periods of high demand.
Backflow can also occur if a water pump, such as a bore pump, is cross connected to the internal water plumbing system, and is pumping bore water at a higher pressure than the water mains pressure (back pressure).
If a property’s drinking water supply is inadvertently connected with a source of pollution, either through a cross connection or simply a hose submerged in a container of liquid, then these pollutants could enter the water supply when there is an overpressure on the private property side or a sudden drop in water mains pressure.
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Original price $60.95 - Original price $60.95Original price$60.95$60.95 - $60.95Current price $60.95Brass Dual Check Valve/Backflow Prevention for Mains Irrigation Systems
Brass Dual Check Valve/Backflow Prevention for Mains Irrigation Systems FF Use the Dual Check Valve for backflow prevention from your irrigation sy...
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Original price $80.00 - Original price $80.00Original price $80.00$89.65$89.65 - $89.65Current price $89.65AVG 20mm Brass Press Fit Double Check Valve/Backflow Preventor with Isolation for Mains Irrigation Systems
AVG 20mm Brass Press Fit Double Check Valve with Isolation Valve for Mains Water (Dual Check Valve Backflow Prevention) DOWNLOAD PRODUCT BRO...
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Original price $33.40 - Original price $42.05Original priceFrom $33.40$33.40 - $42.05Current price $33.40Hose Bib Vacuum Breakers
Hose Bib Vacuum Breakers Attached to sill cocks, valves, and hydrants with Male hose thread outlet. For indoor or outdoor use. Designed to prevent ...
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Original price $69.90Original price $69.90 - Original price $69.90Original price $69.90Current price $64.95$64.95 - $64.95Current price $64.95Logi Civil 20mm Brass Lead Free Press Fit to 25mm MBSP Double Check Valve/Backflow Preventor with Isolation for Mains Irrigation Systems
Logi Civil 20mm Lead Free Brass Press Fit to 25mm MBSP Double Check Valve/Backflow Preventor with Isolation for Mains Irrigation Systems DOWNLO...
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Original price $1,116.85 - Original price $1,943.05Original priceFrom $1,116.85$1,116.85 - $1,943.05Current price $1,116.85Watts Apollo Series 4A-200 Brass Backflow Prevention RPZ Devices
Watts Apollo Series 4A-200 Brass Backflow Prevention RPZ Devices Download Product Brochure The Apollo Series 4A-200 Reduced Pressure Princ...
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Original price $435.75 - Original price $1,295.45Original priceFrom $435.75$435.75 - $1,295.45Current price $435.75Watts Series 009 Brass Backflow Prevention RPZ Devices with Strainer, Unions & Lockable Ball Valves
Watts Series 009 Brass Backflow Prevention RPZ Devices with Strainer, Unions & Lockable Ball Valves DOWNLOAD INSTALLATION DOWNLOAD BROCHU...
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Original price $628.15 - Original price $2,096.80Original priceFrom $628.15$628.15 - $2,096.80Current price $628.15Watts Series 009-SS Stainless Steel Backflow Prevention RPZ Devices with Strainer, Unions & Lockable Ball Valves
Watts Series 009-SS Stainless Steel Backflow Prevention RPZ Devices with Strainer, Unions & Lockable Ball Valves DOWNLOAD INSTALLATION DOW...
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Original price $365.40 - Original price $1,024.60Original priceFrom $365.40$365.40 - $1,024.60Current price $365.40Watts Series 007 Brass Double Check Valves Backflow Preventor Assemblies with Strainer, Unions & Lockable Ball Valves
Watts Series 007 Brass Double Check Valves Backflow Preventor Assemblies with Strainer, Unions & Lockable Ball Valves DOWNLOAD BROCHURE DOW...
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