9D
Dual Check Valve Backflow Preventers with Intermediate Atmospheric Vent
9D
Dual Check Valve Backflow Preventers with Intermediate Atmospheric Vent
Features
- Primary check valve has rubber disc seating against a mating rubber part to ensure tight closing
- Line-sized construction enables check modules to open further, helping to reduce check fouling
- Stainless steel internal parts for longevity
- Can be installed vertically or horizontally
Series 9D Dual Check Valves with Intermediate Atmospheric Vent prevent the reverse flow of hot or cold polluted water from entering into the potable water supply. They have a brass body with stainless steel internal parts, integral strainer, and two durable, tight-sealing, rubber check valves. Series 9D is designed for continuous pressure, non-health hazard applications in smaller supply lines, such as laboratory equipment, processing tanks, sterilizers, dairy equipment, and specifically for boiler feed lines. Minimum Working Pressure: 25psi (172kPa), Maximum Working Pressure: 175psi (12.1 bar)
Approval/Certification Information
For product-specific approval information, please refer to the product’s specification sheet (see literature section above) or ask a Watts representative. Some certification agencies allow you to search by product name and brand.
Literature
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