Reduced-Pressure Zone Backflow Preventers
Available148 products
Reduced pressure zone (RPZ) backflow preventers ensure media travels in one direction and stops back-siphonage and back-pressure in high-hazard applications, such as medical facilities and manufacturing. Sudden drops in system pressure or downstream stoppages (back-siphonage) and outlet pressure exceeding inlet pressure (back-pressure) send flowing backward through the line. These preventers rely on pressure changes caused by back-siphonage and back-pressure to close the check valves, block the media's flow path, and prevent contaminants from entering the system. Along with the check valves, these preventers consist of pressure relief valves that automatically release backflow within the preventer if pressure drops below a certain threshold for added protection, test ports for monitoring media, and shut-off valves on the inlet and outlet side of the unit to stop media flow and conduct maintenance.
Watts RPZ Backflow Preventers
Watts reduced-pressure zone (RPZ) backflow preventers replace existing valves of the same brand.
009 Series
Standard Configuration
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With Strainer
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957 Series
with Flood Detection Sensor
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994 Series
Standard Configuration
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LF009 Series
With Flood Detection Sensor & Strainer
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Standard Configuration
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with Flood Detection Sensor
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With Strainer
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LF909 Large Series
with Flood Detection Sensor
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LF909 Small Series
with Flood Detection Sensor
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LF919 Series
With Flood Detection Sensor & Strainer
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SS009 Series
Standard Configuration
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Watts Fire Hydrant RPZ Backflow Preventers
These Watts reduced-pressure zone (RPZ) backflow preventers install onto fire hydrants to prevent contaminants from flowing backward into the water supply, and they replace existing valves of the same brand.
6000HMB Series
With Strainer
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994BLT Series
Standard Configuration
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Febco RPZ Backflow Preventers
Febco reduced-pressure zone (RPZ) backflow preventers replace existing valves of the same brand.
825YA Series
With Flood Detection Sensor & Freeze Sensor
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With Freeze Sensor
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LF825YA Series
With Freeze Sensor
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With Freeze Sensor & Strainer
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Zurn RPZ Backflow Preventers
Zurn reduced-pressure zone (RPZ) backflow preventers replace existing valves of the same brand.
375 Series
Standard Configuration
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With Strainer
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375A Series
Standard Configuration
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375AST Series
Standard Configuration
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375ST Series
Standard Configuration
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375XL Series
Standard Configuration
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375XLB Series
Standard Configuration
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With Strainer
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975XL Series
Standard Configuration
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975XL2 Series
Standard Configuration
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with Flood Detection Sensor
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With Strainer
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975XL2SE Series
with Flood Detection Sensor
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975XL2U Series
Standard Configuration
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975XL3 Series
Standard Configuration
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Apollo RPZ Backflow Preventers
Apollo reduced-pressure zone (RPZ) backflow preventers replace existing valves of the same brand.
4A Series
Standard Configuration
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