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Ductile Iron Double Check Backflow Preventer

A Ductile Iron Double Check Valve (DC) Backflow Preventer protects potable water from low-hazard cross-connections. It features two independent, spring-loaded check valves in a durable, epoxy-coated ductile iron body. Compact and reliable, it prevents back-siphonage and backpressure in fire lines and irrigation. While it lacks the relief valve of an RPZ, its low pressure drop makes it ideal for high-flow systems.

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Technical Attributes

 

Body Material,Ductile Iron (ASTM A536)

Coating,Fusion Bonded Epoxy (NSF Approved)

Connection Size,2-1/2" to 12" (Typical)

Connection Type,Flanged or Grooved

Max Pressure,175 PSI

Max Temperature,140°F (60°C)

Check Valves,Two Independent Modules

Seat Material,NBR or EPDM Rubber

Springs,Stainless Steel (300 Series)

Check Seats,Replaceable Noryl™ or Bronze

Test Cocks,4 Side-Mounted Ball Valves

Standard,ASSE 1015 / AWWA C510

Approvals,UL Listed / FM Approved

Flow Orientation,Horizontal or Vertical

Hazard Level,Non-Health Hazard (Low)

Lead Content,Lead-Free Compliant

Weight Class,Schedule 40 Compatible

Maintenance,Top-Entry Access


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