Watts 0386463 1/2″ Backflow Preventer & Fill Valve

Description

Watts 0386463 1/2″ Backflow Preventer & Fill Valve Overview

The Watts 0386463 is a 1/2″ combination backflow preventer and fill valve engineered to deliver dual-function protection and pressure maintenance in a single, compact assembly. Designed for residential and light commercial hydronic heating systems, this unit automatically replenishes system water to maintain proper operating pressure while providing a critical barrier against the backflow of potentially contaminated system water into the potable water supply.

Key Features

• 1/2″ connection size for standard hydronic system piping
• Dual-function design combines backflow prevention and automatic fill in one unit
• Protects potable water supply from contamination caused by backflow or back-siphonage
• Automatically maintains system pressure by admitting makeup water as needed
• Compact, integrated assembly simplifies installation and reduces pipe fittings
• Built to Watts’ exacting quality and durability standards
• Ideal for hydronic heating, boiler feed, and radiant heating applications

Application

This valve is well-suited for use on boilers, hydronic heating loops, and radiant floor heating systems where maintaining consistent system pressure and protecting the domestic water supply are both essential. The combined backflow preventer and fill valve eliminates the need for separate components, saving installation time and space in mechanical rooms.

Why Choose Watts?

Watts is a globally recognized leader in flow control, water quality, and conservation products. Their backflow preventers and fill valves are trusted by HVAC professionals and plumbing contractors for their reliability, code compliance, and long service life.