Watts 0063230 Preventer

The Watts 0063230 (Model LF007-QT) is a 1/2-inch double check valve assembly designed to prevent the backflow of contaminated water into the potable water supply. This lead-free unit is the direct updated replacement for the 0062131 and legacy 007-1/2 models. Engineered for low-head loss performance, it features a modular design with two independent check valves and two shutoff valves. The 007QT-1/2 utilizes a bronze body construction and Noryl check seats, making it ideal for non-health hazard applications like fire protection lines and irrigation systems. It is rated for continuous pressure up to 175 psi and fluid temperatures up to 180°F. For contractors performing field maintenance, the top-entry cover allows for rapid access to internal components without removing the body from the line, ensuring efficient repair and testing. This assembly meets ASSE 1015 and CSA B64.5 standards, providing reliable cross-connection control in commercial and residential plumbing installations.

Technical Specifications and Benefits

• Lead-free construction: Complies with federal mandates for potable water safety and "lead-free" plumbing requirements.
• Replaceable seats: Noryl internal seats are easily serviced or replaced, extending the service life of the valve body.
• Compact footprint: The short-form design simplifies installation in tight mechanical rooms or enclosures.
• In-line serviceability: Independent check modules can be inspected or cleaned without special tools or piping disconnection.
• Quarter-turn ball valves: Equipped with standard tee handles for positive shutoff during backflow testing or maintenance.

Common Questions

What is the difference between the 007 and LF007 models?
The LF007 (0063230) is the lead-free version of the legacy 007 series, utilizing specialized alloys to meet current potable water regulations while maintaining the same physical dimensions for drop-in replacement.

Can this unit be installed vertically?
Yes, the Watts 007QT-1/2 is approved for both horizontal and vertical "up-flow" orientations, provided the installation adheres to local plumbing codes and manufacturer clearance requirements for testing.

What are the primary applications for a double check valve assembly?
It is used in non-health hazard cross-connections where backpressure or backsiphonage may occur, such as residential sprinklers or industrial cooling lines not containing toxic chemicals.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.