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1/2 in. Union Dual Check Backflow Preventer Valve with Atmospheric Vent Sweat 1/2 in. Union Backflow Preventer Valve is designed to help prevent the reverse flow of polluted hot or cold water into a potable water supply. Featuring a dual-check design with an intermediate atmospheric vent, it provides dependable backflow protection for continuous-pressure, non-health-hazard applications.
Designed for smaller supply lines, this backflow preventer is suitable for applications including boiler feed lines, laboratory equipment, processing tanks, sterilizers, and dairy equipment. Its compact design combines reliable performance with economical operation while helping maintain maximum flow at a low pressure drop.
The valve features a durable brass body with stainless-steel internal components for strength and long-lasting performance. An integral strainer helps manage debris, while two durable, tight-seating rubber check valves provide reliable operation. True line-sized construction allows the check module to open wide, promoting the passage of dirt and debris while helping limit check fouling.
Union connections allow convenient removal and replacement for servicing, while sweat connections provide integration into compatible copper piping systems. The valve can be installed either vertically or horizontally for added installation in. dual check backflow preventer valve
Intermediate atmospheric vent
Helps prevent reverse flow into potable water supplies
Designed for hot or cold water applications
Intended for continuous-pressure, non-health-hazard applications
Ideal for smaller water supply lines
Specifically suitable for boiler feed line applications
Suitable for laboratory equipment
Suitable for processing tanks
Suitable for sterilizers
Suitable for dairy equipment
Durable brass valve body
Stainless-steel internal components
Integral strainer
Two durable, tight-seating rubber check valves
Sweat end connections
Union connections simplify removal and replacement
Can be installed vertically
Can be installed horizontally
True line-sized construction
Check module opens wide to promote dirt and debris passage
Design helps limit check fouling
Designed for maximum flow at low pressure drop
Compact design
Simple construction for economical operation
Designed for convenient Type: Backflow Preventer Valve
Valve Size: 1/2 in.
Backflow Design: Dual Check
Vent Type: Intermediate Atmospheric Vent
Body Material: Brass
Internal Parts Material: Stainless Steel
Check Valves: 2
Check Valve Material: Rubber
Strainer: Integral
Connection Type: Sweat / Union
Installation Orientation: Vertical or Horizontal
Application: Continuous-Pressure Non-Health-Hazard
Water Compatibility: Hot or Cold Water
Primary Application: Boiler Feed Lines / Potable Water Supply Protection
Package Includes
Customer Satisfaction
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