Watts 0794085 Repair Kit

For veteran contractors managing large-scale Reduced Pressure Zone (RPZ) assemblies, the Watts 0794085 Repair Kit is the professional-grade solution for overhauling the relief valve on 2-1/2" and 3" Watts backflow preventers. This comprehensive lead-free relief valve kit (formerly listed under legacy part numbers 0887235, LFRK909-VT-2 1/2-3, and RK909VT-3) provides all components necessary to stop intermittent discharge or persistent dripping at the relief port, ensuring the system remains in full compliance with local plumbing codes and safety regulations.

Engineered for high-demand commercial and industrial environments, the Watts 0794085 includes a factory-original cover, cover O-ring, sensing passage O-ring, bleed screw O-ring, vent hood, and bleed screw. Because this is a genuine Watts 909 VT replacement kit, every O-ring and internal part is machined to exact tolerances, allowing for a seamless fit that maintains the pressure differential required for proper RPZ operation. Field service is straightforward; the design allows for a complete component swap with no special tools required, minimizing system downtime during annual testing or emergency maintenance.

Key Benefits for Technicians

• Complete Relief Valve Overhaul: Restores the tight seal and mechanical response of the relief valve module to stop nuisance dripping.
• Lead-Free Compliance: Fully compatible with LFRK909 models, meeting all rigorous potable water safety standards.
• Technical Compatibility: Specifically designed for the 909 series 2-1/2" to 3" backflow assemblies, ensuring consistent spring tension and seating.
• OEM Durability: Uses industrial-grade elastomers and hardware to withstand pressure surges and mineral buildup in hard water applications.

Common Questions

When should the Watts 0794085 be used instead of a rubber-only kit?
This "Total Kit" is recommended when the relief valve cover or vent hood is damaged, or if the internal sensing passages show signs of wear that a simple O-ring replacement won't solve. It provides a more robust fix for older assemblies.

Does this kit work for both the standard 909 and the Lead-Free LF909?
Yes, the 0794085 is the updated, lead-free version that is backward compatible with both the original 909 and the modern LFRK 909 VT models in the 2-1/2" to 3" size range.

Which symptoms indicate the relief valve needs this specific kit?
If you observe a continuous discharge from the relief valve while the first check valve is known to be holding tight, or if there is a visible leak from the bleed screw or cover seal, a full relief valve service is necessary.

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.