Watts 0887124 Seal Kit

The Watts 0887124 Seal Kit (listed interchangeably as Watts 887124) is a critical field-service solution designed specifically for repairing the relief valve assembly on 3/4" to 1" Watts Series 909 Reduced Pressure Zone (RPZ) backflow preventers. As a lead-free compliant kit, it ensures the hydraulic integrity of the relief valve mechanism, preventing nuisance dripping and ensuring the assembly maintains the required pressure differential between the zones. This kit is built for long-term reliability in potable water systems, featuring high-grade elastomers that resist thermal degradation and mineral buildup. When maintaining a Watts RK 909S 3/4-1, renewing the internal seals is a cost-effective alternative to full valve replacement, restoring the reduced pressure zone assembly to the precise tolerances required by local plumbing codes and ASSE 1013 standards.

• OEM Compatibility: Precision-engineered for Watts Series 909 relief valves in both 3/4" and 1" sizes, ensuring a perfect seal and proper spring tension.
• Complete Internal Overhaul: Includes all necessary O-rings, a molded disc assembly, and the diaphragm required for most relief valve service procedures.
• Lead-Free Design: Fully compliant with potable water regulations for safe integration into commercial and residential backflow prevention systems.
• Performance Restoration: Corrects common failure points like "relief valve spitting" or the inability to hold a 2.0 PSI differential during annual testing.

• Will this kit work on the 919 series? No, the Watts 0887124 is specifically designed for the 909 relief valve series; the 919 uses a different internal configuration.
• Is any special lubricant required during installation? Use a food-grade, NSF-certified silicone lubricant on the O-rings to ensure a proper seat and prevent pinching during reassembly.
• Is 0887124 different from the 887124? No, these are the same factory part number. Watts often uses leading zeros in their SKU inventory management systems.

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.