Watts 0794064 Repair Kit

The Watts 0794064 is a professional-grade second check repair kit designed specifically for 1.25", 1.5", and 2" Reduced Pressure Zone (RPZ) backflow preventers. This kit facilitates a complete rebuild of the second check assembly in Watts Series 909 and LF909 lead-free valves. As the direct 0794064 updated version, it serves as the official replacement for legacy parts including 0887134, 881495, and RK909-CK2. For technicians servicing systems where backflow preventer maintenance is critical, this kit ensures the internal check module maintains a tight seal against backpressure. The components are engineered to handle high-flow commercial applications, ensuring the 909 series second check meets original factory specifications for head loss and seat closure. Utilizing this Watts 909 rebuild kit allows for field-level restoration of the backflow assembly without the need for full valve replacement, minimizing system downtime.

• Comprehensive Compatibility: Fits 1-1/4 to 2-inch Watts LF909 and 909 series second check modules.
• Direct OEM Replacement: Replaces discontinued part numbers LFRK909M1-CK2 and 887134 with updated material standards.
• All-Inclusive Components: Includes the disc assembly, O-rings, and seat assembly for a total internal overhaul.
• Lead-Free Construction: Complies with plumbing codes requiring lead-free materials for potable water service.

Common Backflow Service Questions

Does this kit work for both the first and second check?
No, the Watts 0794064 is specifically configured for the second check assembly. The first check requires a different kit due to varying spring tensions and seating requirements.

How do I know if I need a 909 or LF909 kit?
The 0794064 kit is designed to service both the standard 909 and the Lead-Free (LF909) models, making it a versatile choice for service trucks carrying inventory for multiple vintage installations.

Can I install this kit in a 1-inch valve?
No, this kit is specifically sized for the 1.25" through 2" body size. Attempting to fit these components into a 1" valve will result in improper sealing and potential assembly failure.

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.