Watts 0887120 Kit

The Watts 0887120 is a professional-grade RK 909-CK1 first check repair kit engineered for 3/4" and 1" Reduced Pressure Zone (RPZ) backflow preventers. This factory replacement kit is designed specifically for the Watts Series 909 and Lead-Free LF909 assemblies, providing a direct solution for maintaining the integrity of the first check station. As a direct replacement for legacy part numbers 881466 and RK909-CK1, this backflow preventer repair kit ensures your system meets code requirements without the need for a full valve replacement. The kit includes a high-durability disc assembly, spring, seat, seat O-ring, cover O-ring, and specialized lubricant to facilitate a leak-free seal. For contractors and facility managers, the Watts 909 first check kit is the industry standard for restoring 3/4 inch to 1 inch RPZ valves to original factory performance specifications, ensuring reliable protection against back-siphonage and backpressure in potable water systems.

• Direct OEM Compatibility: Specifically engineered for 3/4" and 1" Watts 909 and LF909 Series valves, securing a perfect fit for the first check station.
• All-In-One Service Solution: Includes every necessary component—disc assembly, spring, seat, and O-rings—to complete a standard first check overhaul.
• Field-Service Friendly: Designed for streamlined installation with no special tools required, reducing labor time during annual testing and maintenance.
• Lead-Free Compliant: Fully compatible with LF909 models, meeting all current regulations for potable water applications.
• Durable Construction: Features high-quality materials built to withstand the mechanical stress and pressure fluctuations typical of commercial backflow prevention.

When should the first check kit be replaced?
Replacement is typically required if the first check valve fails a certified backflow test, specifically if the check is leaking or failing to maintain the required pressure differential (usually at least 5.0 psi for most local codes).

Is the 0887120 compatible with older Watts 909 models?
Yes, the 0887120 is the current direct replacement for older 881466 and RK909-CK1 part numbers used in standard 3/4" and 1" 909 series assemblies.

Do I need special tools to replace the first check seat?
The Watts 909 series is known for its "no special tools" design, making it easier for technicians to service the internal components compared to many competitive RPZ valves.

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.