Watts 0794090 Kit

The Watts 0794090 repair kit is an essential field-service solution for rehabilitating the 4 inch 909 Reduced Pressure Zone (RPZ) backflow preventer. This lead-free total rubber parts kit provides everything required for a full relief valve overhall and check assembly maintenance to ensure the potable water supply remains protected from backsiphonage and backpressure. Engineered for high-flow commercial plumbing applications, the kit features high-grade elastomers designed to withstand the rigors of cross-connection control under variable pressure conditions. Precise fitment for the RK-LF909 Series ensures that critical components like the diaphragm and piston O-rings maintain the "air-in/water-out" relief valve operational performance without the need for specialized backflow tester tools during the installation of soft goods. Utilizing genuine OEM Watts parts prevents the hazardous mixing of non-potable and potable water, keeping your system compliant with strict national plumbing codes.

• Complete Rubber Overhaul: Includes all necessary O-rings, molded disc assemblies, and the main relief valve diaphragm for a comprehensive service.
• Lead-Free Compliance: Specifically designed for LF909 models to meet current Safe Drinking Water Act requirements.
• Simplified Field Maintenance: Components are engineered for direct replacement, reducing labor hours and downtime for HVACR contractors.
• Enhanced Durability: Heat and chemical-resistant rubber components are built to handle commercial backflow prevention stressors.

Does this kit include parts for both the check valves and the relief valve?
Yes, as a total rubber parts kit, the 0794090 contains the elastomers for the relief valve and the check discs and seat O-rings for both check assemblies.

Can I use this kit for the standard 909 and the lead-free LF909 versions?
This Watts 4 inch repair kit is compatible with both the original Series 909 and the Lead Free Series LF909 backflow preventer models.

Are special tools required to install these rubber components?
No, the Watts 909 repair kit is designed for straightforward field servicing without the need for proprietary or specialty tools.

This item is not eligible for free shipping.

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.