Watts 888823 Second Check Valve Assembly Repair Kit

Product Description

The WATTS 888823 is a second check valve assembly used as a replacement repair component in Watts backflow preventer assemblies. This part restores the internal check valve function critical to maintaining backflow protection in commercial and industrial water systems. Licensed plumbers and mechanical contractors install this component during scheduled maintenance or after a failed field test indicates check valve fouling or seat wear. At 4.97 pounds, it is a substantial assembly suited for large-diameter valve bodies in the 6-inch and 8-inch size ranges.

This assembly is designed for use in 6-inch Watts backflow preventer models including the 774, 774DCDA, 2000SS, 3000SS, 994, 994RPDA, 4000SS, and 5000SS. For 8-inch installations, it fits the 2000SE and 3000SE models. These assemblies are typically found in commercial buildings, industrial facilities, and municipal water service applications where large-diameter backflow prevention is required by code.

Key Features

• Direct replacement second check valve assembly for field repair of large-diameter Watts backflow preventers
• Compatible with both 6-inch and 8-inch valve body sizes across multiple Watts series
• Supports compliance with backflow preventer annual test-and-maintenance requirements
• Substantial construction at 4.97 pounds consistent with heavy-duty commercial valve service

Compatibility

Fits 6-inch Watts models 774, 774DCDA, 2000SS, 3000SS, 994, 994RPDA, 4000SS, and 5000SS. Fits 8-inch Watts models 2000SE and 3000SE.

Installation Notes

Installation should be performed by a licensed plumber or certified backflow preventer tester. Shut off the upstream isolation valve and relieve system pressure before disassembling the valve body. Follow the applicable local plumbing code and the Watts service manual for the specific valve series when reassembling internal components. A post-repair differential pressure test is typically required by local authority having jurisdiction before returning the assembly to service.

Technical Specifications

• Compatible Valve Sizes: 6 inches, 8 inches
• Weight: 4.97 pounds

Standard Information

• Brand: WATTS
• Manufacturer Part Number: 888823