Watts 0064040 Backflow Preventer Dual Check Valve

Description:

The Watts 0064040 Cu7 U2-U2 Dual Check Valve is a 1/2 inch backflow preventer designed to prevent reverse flow and protect potable water systems from contamination caused by backsiphonage and backpressure conditions. Commonly installed in residential plumbing systems, water service lines, beverage dispensing equipment, irrigation systems, boiler feed applications, and commercial water distribution networks requiring reliable backflow protection. Maintenance technicians, plumbing contractors, facility operators, and system integrators use this valve for code compliance, replacement projects, preventive maintenance, and new installations requiring dependable cross-connection control.

Applications:

The Watts Cu7 U2-U2 Dual Check Valve is widely used in residential and commercial plumbing systems, municipal water service connections, water meter installations, beverage dispensing equipment, boiler feed systems, irrigation systems, water treatment equipment, apartment complexes, schools, hospitals, restaurants, office buildings, manufacturing facilities, and institutional plumbing networks. The valve automatically prevents reverse flow that could contaminate potable water supplies while helping protect downstream equipment and maintain system integrity. It is commonly specified in applications where reliable backflow prevention is required to comply with plumbing codes, protect public water supplies, and ensure safe operation of water distribution systems.

Technical Specifications:

• Manufacturer Part Number (MPN): 0064040
• Brand: Watts
• Model: Cu7 U2-U2
• Product Type: Dual Check Valve / Backflow Preventer
• Connection Size: 1/2 in. x 1/2 in.
• Connection Type: Copper Tube (Copper Sweat)
• Valve Type: Dual Check Backflow Preventer
• Body Material: Bronze
• Internal Components: Stainless Steel and Engineered Materials
• Function: Reverse Flow Prevention
• Protection Type: Backpressure and Backsiphonage Protection
• Service Media: Potable Water
• Installation: Inline Water Distribution Systems
• Application: Residential and Commercial Plumbing Systems
• Flow Direction: One-Way Flow Control
• Maintenance Type: Serviceable Design
• Suitable For: Water Service Lines, Meters, and Distribution Systems
• Compliance: Designed for Potable Water Backflow Protection Applications

Common Replacements:

• Watts 7 Dual Check Valve 1/2" Copper Sweat
• Watts LF7R Lead-Free Dual Check Valve 1/2"
• Zurn Wilkins 850XL Dual Check Valve 1/2"