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Sign In Register Forgot User ID? Forgot Password?Dual Check Backflow Preventers
14 products
Dual-check backflow preventers are compact units with two inline check valves that prevent liquids from flowing in reverse and contaminating water supplies. They are used in applications ranging from municipal water systems and fire sprinkler systems to laboratory and processing equipment.
Size
Lead Free Dual Check Backflow Preventers
Lead-free dual-check backflow preventers stop the reverse flow of contaminated water into potable water systems.
WATTS LF7
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WATTS LFN9
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APOLLO 4ALF-300
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ZURN WILKINS 700XL
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ZURN WILKINS 705
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APOLLO 4ALF-400
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APOLLO 4NLF-300
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Continuous Pressure Dual Check Backflow Preventers
Continuous-pressure dual-check backflow preventers are used in smaller supply lines and piping systems that handle continuous liquid flow for applications such as boiler feed lines and dedicated industrial service lines.
APOLLO 4A-400
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WATTS 9D
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WATTS REGULATOR 9D
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High Pressure Hose Drop Dual Check Backflow Preventers
High-pressure hose drop dual-check backflow preventers prevent backflow of contaminated water from food processing and rendering areas into water supplies. They are used with high-pressure hoses in continuous-pressure washdown lines.
WATTS 912
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