Weil McLain 640-000-028 3-Way Valve for Combi Boilers

The Weil McLain 640-000-028 3-way valve is a replacement hydronic control valve for Weil McLain combi boiler systems. A 3-way valve directs water flow between circuits, which helps the boiler manage water temperature and distribution.

Key Features:

• Genuine Weil McLain 3-way valve, part number 640-000-028
• For Combi applications only
• Directs water flow between the heating and domestic hot-water circuits
• Listed by Weil McLain under Combi boiler replacement kits and parts

A suitable choice for service and repair work on a Weil McLain combi boiler that needs a replacement 3-way valve.