Watts 887715 Vacuum Breaker Float Vent Kit 1 Inch

Product Description

The WATTS 887715 is a float vent kit designed for use with the 800M4 series pressure vacuum breaker (PVB) assemblies. This replacement kit services the float and vent mechanism inside the PVB bonnet, which is the component responsible for allowing air into the system during a backsiphonage event. Proper function of the float and vent assembly is essential for maintaining backflow prevention performance in potable water and irrigation applications. Installation is handled by licensed plumbers or backflow prevention specialists during scheduled maintenance or repair of the vacuum breaker assembly.

This float vent kit is sized for 1-inch vacuum breaker assemblies. Pressure vacuum breakers are widely used in residential and light commercial irrigation systems, hose connections, and other applications where the downstream piping may be subject to backsiphonage conditions. The kit provides the internal float and vent components needed to restore a worn or failed 800M4 PVB to proper operating condition without replacing the entire assembly.

Key Features

• Replacement float and vent components for the 800M4 series pressure vacuum breaker
• Sized for 1-inch PVB assemblies
• Restores backflow prevention function by servicing the internal vent mechanism
• Supports cost-effective field repair rather than full assembly replacement

Compatibility

Designed as a replacement service kit for WATTS 800M4 series 1-inch pressure vacuum breaker assemblies.

Installation Notes

Installation should be performed by a licensed plumber or certified backflow prevention technician. Shut off the upstream water supply and relieve system pressure before disassembling the PVB bonnet. Many jurisdictions require backflow prevention devices to be tested after service by a certified tester in accordance with local plumbing codes. Refer to the 800M4 service manual for disassembly and reassembly procedures.

Technical Specifications

• Size: 1 inch
• Weight: 0.1 pounds
• Compatible Assembly Series: 800M4

Standard Information

• Brand: WATTS
• Manufacturer Part Number: 887715