Watts 887228 Second Check Rubber Kit 6 Inches

Product Description

The WATTS 887228 is a second check rubber repair kit designed for use in backflow preventer assemblies. This kit supplies the elastomeric seating and sealing components needed to restore the second check valve to proper working condition during a rebuild or scheduled maintenance. Backflow preventers require periodic inspection and internal component replacement to maintain certification and performance, and this kit provides the correct rubber parts for that service. The 887228 is sized for 6-inch assemblies and is intended for installation by licensed plumbers and backflow prevention assembly testers.

This kit is used in commercial and industrial plumbing systems where reduced-pressure zone or double-check backflow prevention is required. It is appropriate for potable water supply lines, irrigation systems, and fire suppression connections where cross-connection control compliance is mandated. The kit is specifically matched to the WATTS 909, LF909, 4000CIV, and 5000CIV backflow preventer series in the 6-inch size.

Key Features

• Rubber components sized for 6-inch backflow preventer assemblies
• Compatible with 909, LF909, 4000CIV, and 5000CIV series assemblies
• Supports scheduled rebuild and recertification work on second check valve internals
• Designed to restore proper seating and sealing performance in the second check module

Compatibility

Compatible with WATTS 909, LF909, 4000CIV, and 5000CIV backflow preventer assemblies in the 6-inch size.

Installation Notes

Installation should be performed by a licensed plumber or a certified backflow prevention assembly tester in accordance with local plumbing codes and the International Plumbing Code. Shut off the upstream and downstream isolation valves and relieve system pressure before disassembling the check module. Inspect the check seat and guide for wear or corrosion before installing new rubber components, and reassemble to manufacturer torque specifications as documented in the WATTS service manual for the applicable assembly series.

Technical Specifications

• Size: 6 inches
• Weight: 0.7 pounds
• Compatible Series: 909, LF909, 4000CIV, 5000CIV
• Component: Second Check Rubber Kit

Standard Information

• Brand: WATTS
• Manufacturer Part Number: 887228