Watts RK 45-BFP/900C Backflow Preventer Repair Kit

Description:

The Watts No. 900C Repair Kit is a complete backflow preventer repair kit designed for 3/4 inch, 1 inch, and 1-1/4 inch Watts Series 900 Reduced Pressure Zone (RPZ) Backflow Prevention Assemblies, providing the internal components required to restore proper backflow protection and valve performance. Commonly installed in commercial plumbing systems, irrigation networks, fire protection service lines, industrial facilities, municipal water systems, and potable water distribution applications utilizing Watts 900 Series RPZ assemblies. Maintenance technicians, backflow specialists, plumbing contractors, and facility operators use this kit for preventive maintenance, annual testing repairs, compliance upgrades, and rebuilding existing backflow prevention equipment.

Applications:

The Watts No. 900C Repair Kit is widely used in commercial buildings, hospitals, schools, manufacturing facilities, apartment complexes, irrigation systems, municipal water networks, industrial plants, water treatment facilities, and institutional plumbing systems. The kit restores the operation of Watts Series 900 Reduced Pressure Zone assemblies by replacing worn check valve and relief valve components that can affect backflow prevention performance. It is commonly specified during certified backflow testing, scheduled maintenance programs, valve overhauls, and repair projects where maintaining code-compliant protection of potable water supplies is critical for system reliability and regulatory compliance.

Technical Specifications:

• Brand: Watts
• Product Type: Backflow Preventer Repair Kit
• Series: 900C
• Repair Kit Number: RK 45-BFP/900C
• Ordering Code: 0881240
• Compatible Valve Series: Watts 900 Reduced Pressure Zone Assemblies
• Compatible Valve Sizes: 3/4 in., 1 in., and 1-1/4 in.
• Application: RPZ Backflow Preventer Maintenance and Repair
• Kit Type: Complete Repair Kit
• Lead Free: No
• Kit Contents: Inlet Adapter Gasket
• Kit Contents: First Check Valve Assembly with Spring and O-Ring
• Kit Contents: Second Check Valve Assembly
• Kit Contents: Second Check Valve Spring
• Kit Contents: Relief Valve Spring
• Kit Contents: Stem O-Ring
• Kit Contents: Union Nut Gaskets
• Kit Contents: Maintenance Tool
• Kit Contents: Silicone Grease
• Function: Restore Backflow Prevention Performance
• Installation: Field Serviceable
• OEM Replacement Part: Yes
• Service Media: Potable Water

Common Replacements:

• Watts RK 46-BFP-RK Rubber Parts Kit
• Watts RK 34-BFP/900C-SSK Seat and Seal Kit
• Watts RK 48-BFP-RK Complete Repair Kit for Larger 900 Series Sizes