Watts Regulator 0887126 AK RPZ Backflow Preventer Repair Kit

Description:

The Watts Regulator RK 909 VT 3/4"-1" Repair Kit (Part No. 0887126 AK) is a genuine OEM relief valve repair kit designed for servicing 3/4 inch and 1 inch Watts 909 and LF909 Reduced Pressure Zone (RPZ) backflow preventer assemblies. The kit includes the major components required to restore proper relief valve operation, helping maintain reliable backflow protection and extend the service life of the assembly. It is intended for preventive maintenance and repair in commercial, industrial, irrigation, and potable water systems.

Applications:

The RK 909 VT repair kit is widely used by plumbers, maintenance technicians, and facility managers to service Watts 909 and LF909 RPZ backflow preventers installed in commercial buildings, municipal water systems, hospitals, schools, industrial facilities, irrigation systems, and fire protection applications. Replacing worn relief valve components helps restore proper valve operation, prevent backflow, and maintain compliance with plumbing and cross-connection control requirements.

Technical Specifications:

• Manufacturer Part Number (MPN): 0887126 AK
• Model: RK 909 VT 3/4"-1"
• Brand: Watts
• Product Type: Relief Valve Repair Kit
• Compatible Models: Watts 909 and LF909 RPZ Backflow Preventers
• Compatible Valve Sizes: 3/4 in. and 1 in.
• Kit Type: Total Relief Valve Repair Kit
• Kit Contents: Relief Valve Assembly, Seat, Seat O-Ring, Cover O-Ring, Lubricant
• Service Media: Potable Water
• Function: Restores Relief Valve Performance
• Installation: Internal repair of existing backflow preventer
• OEM Replacement Part: Yes
• No Special Tools Required: Yes
• Application: Reduced Pressure Zone (RPZ) Backflow Preventer Maintenance

Common Replacements:

• Watts RK 909 CK1 3/4"-1" First Check Repair Kit
• Watts RK 909 CK2 3/4"-1" Second Check Repair Kit
• Watts RK 909 RT 3/4"-1" Complete Rubber Parts Kit