Watts 0794063 Repair Kit

The Watts 0794063 is a lead-free first check repair kit engineered for 1-1/4" to 2" Series 909 reduced pressure zone (RPZ) backflow preventers. This comprehensive RK 909 CK1 service kit is designed to restore the integrity of the primary check valve assembly, ensuring reliable backflow protection in potable water systems. As the direct replacement for legacy part numbers including 0887133, 887133, and LFRK909M1-CK1, this kit is essential for addressing seat leakage or mechanical failure within the first check module. The components are manufactured from high-grade, corrosion-resistant materials to maintain compliance with lead-free plumbing codes. Designed for professional field service, this Watts 909 repair kit includes the check disc assembly, O-ring, and lubricant required for a complete overhaul of the first check stage, ensuring the assembly maintains the required pressure differential during operation.

Key Benefits:

• Direct Compatibility: Engineered specifically for 1-1/4", 1-1/2", and 2" Watts 909 and LF909 backflow preventers.
• Standardized Maintenance: Replaces multiple older part iterations, including RK909CK1-1 1/4-2, for streamlined inventory.
• Lead-Free Compliance: All internal wetted components meet the stringent requirements of the Safe Drinking Water Act.
• Extended Service Life: EPDM elastomers provide superior resistance to thermal cycling and localized water chemistry issues.
• Simplified Installation: Drop-in internal components allow for fast field repairs without removing the valve body from the line.

Common Questions:

How do I know if the first check or the relief valve needs service?
If the relief valve discharge is constant, it often indicates the first check valve is fouled or leaking. Utilizing the Watts 0794063 first check kit restores the seal, maintaining the pressure zone necessary to keep the relief valve closed.

Is this kit compatible with both the M1 and non-M1 Series 909?
Yes, this Watts backflow repair kit is designed to service the first check on both original 909 and 909M1 series valves within the 1-1/4" to 2" size range.

Does this kit include parts for the second check or relief valve?
No, the 0794063 focuses exclusively on the first check valve assembly. If the second check or the relief valve requires maintenance, separate kits must be sourced for those specific modules.

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.