Watts 887708 Pressure Vacuum Breaker Rebuild Kit

Product Description

The WATTS 887708 is a rubber rebuild kit designed for the 800M4 series pressure vacuum breaker (PVB) assemblies. This kit supplies the internal rubber components needed to restore a worn or leaking PVB to proper working condition, maintaining backflow prevention performance in potable water and irrigation systems. Covering the 1-1/4 to 2 inch valve size range, it is the correct service kit for licensed plumbers and backflow prevention technicians performing routine maintenance or repair on these assemblies. The kit weighs 0.2 pounds, making it a compact service component to keep on the service vehicle.

Pressure vacuum breakers are installed in irrigation systems, commercial plumbing, and industrial water supply lines where backflow protection is required by code. This rebuild kit is appropriate for service calls on existing 800M4 PVB installations in residential irrigation and light commercial applications. Technicians replacing internal elastomers as part of a scheduled maintenance program or in response to a failed annual test will find this kit addresses the rubber seating and sealing components of the assembly.

Key Features

• Fits 800M4 series pressure vacuum breaker valves in the 1-1/4 to 2 inch size range
• Supplies replacement rubber internal components to restore backflow prevention function
• Lightweight at 0.2 pounds, suitable for stocking on a service vehicle
• Supports routine maintenance and repair without full valve replacement
• Intended for use by licensed plumbers and certified backflow prevention testers

Compatibility

Designed for use with WATTS 800M4 series pressure vacuum breaker assemblies in the 1-1/4 to 2 inch valve size range.

Installation Notes

Service on pressure vacuum breakers must be performed by a licensed plumber or certified backflow prevention technician in accordance with local plumbing codes and IPC guidelines. Shut off the upstream water supply and relieve system pressure before disassembling the valve body. Inspect all seating surfaces for corrosion or scoring before installing new rubber components. Reassemble per the manufacturer service instructions and perform a post-repair backflow test to verify proper function before returning the system to service.

Technical Specifications

• Valve Size Range: 1-1/4 to 2 inches
• Compatible Series: 800M4 Pressure Vacuum Breaker
• Weight: 0.2 pounds

Standard Information

• Brand: WATTS
• Manufacturer Part Number: 887708