Zurn RK114-550R Check Rubber Kit Wilkins 550

Product Description

The ZURN RK114-550R is a check rubber kit designed as a replacement repair part for Wilkins 550 series backflow preventers in the 1-1/4 inch to 2 inch size range. This kit supplies the rubber sealing components needed to restore proper check valve function within a 550 series assembly. Backflow preventers rely on precise seating and sealing to maintain code-compliant performance, and worn or damaged rubber internals are a common cause of failure. This kit gives plumbers and backflow technicians the components required to return a unit to service without replacing the entire device.

This kit is suited for commercial and residential plumbing systems where Wilkins 550 double check valve assemblies are installed for backflow protection. Typical applications include irrigation supply lines, commercial equipment connections, and potable water service protection. The 1-1/4 inch to 2 inch size range covers the mid-range valve bodies commonly found in light commercial and larger residential installations. Repair kits of this type are used during annual backflow test-and-repair service or following a failed field test.

Key Features

• Designed to service Wilkins 550 series double check valve assemblies in 1-1/4 inch to 2 inch sizes
• Includes rubber check seating components to restore proper sealing function
• Supports field repair and reconditioning without full valve replacement
• Helps maintain backflow preventer compliance with local plumbing codes

Compatibility

Designed as an OEM-style replacement rubber kit for Wilkins 550 series backflow preventers in the 1-1/4 inch to 2 inch size range.

Installation Notes

Installation should be performed by a licensed plumber or certified backflow prevention assembly tester. Shut off upstream supply and relieve system pressure before disassembling the valve body. Follow the valve manufacturer service instructions for correct component seating sequence and orientation. After reassembly, the device should be tested per local authority having jurisdiction requirements before returning to service.

Technical Specifications

• Valve Series: Wilkins 550
• Compatible Size Range: 1-1/4 inches to 2 inches
• UPC Code: 612052091723

Standard Information

• Brand: ZURN
• Manufacturer Part Number: RK114-550R