Watts 0794061 Valve Parts

When you are servicing Watts Series 909-RV lead-free backflow preventers in the 3/4" and 1" sizes, using the Watts 0794061 Relief Valve Repair Kit is the industry standard for maintaining code compliance and system integrity. This RK-LF909-RV rubber parts kit is the direct OEM replacement for the legacy 0887131 and 887131 parts, ensuring a precise fit without the need for special tools or field modifications. Field technicians frequently encounter discharge from the relief valve due to fouled or worn elastomers; this kit addresses those issues by providing a new diaphragm, disc, molded disc assembly, and all necessary O-rings (piston, stem, and cover). These high-grade components are designed to withstand the seating stresses and thermal cycles common in commercial and residential potable water systems, ensuring the LFRK909-RV-3/4-1 maintains the required differential pressure between the zones of the assembly.

Key Benefits

• Direct Compatibility: Engineered specifically for 3/4" and 1" Watts 909-RV assemblies, eliminating the risk of using incorrect aftermarket seals.
• Lead-Free Compliant: Fully meets all regulatory requirements for potable water installations.
• Comprehensive Maintenance: Includes all critical rubber components needed to stop relief valve "spitting" and restore the prescribed air-gap operation.
• Updated Specifications: Features the latest material improvements found in the 0794061 series for better chemical resistance compared to older 887131 kits.

Common Questions

Is the Watts 0794061 compatible with non-lead-free 909 valves?
Yes, while this kit is designated LFRK909-RV, it is backward compatible with the standard 909 series relief valves of the same 3/4" and 1" sizes.

Does this kit include the relief valve spring?
No, this is a rubber parts kit. If your spring is corroded or broken, you would need to order a complete relief valve total internal parts kit rather than the elastomer-only 0794061.

How do I know if I need a relief valve kit instead of a check valve kit?
If water is constantly dripping or discharging from the relief valve vent, and check valves are holding pressure, the Watts 0794061 is the correct repair solution to seal the relief valve seat.

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.