640-000-028 | 3way valve Combi only | Weil McLain

**Weil McLain 3-Way Valve (640-000-028)** 3-Way control valve, Combi only. Designed for use in Weil McLain boiler systems. 3-way valves divert the flow to control the temperature of the water in the boiler. They can also be used to regulate the flow of water and steam in other systems. This product is a genuine Weil McLain replacement part. **Technical Specifications:** * SKU: 640-000-028 * Brand: Weil McLain * Type: 3-Way Valve * Application: Combi Only * Genuine Weil McLain Replacement Part **Benefits:** * Regulates water temperature in boilers * Controls flow of water and steam * Durable and reliable construction Shop now at our HVAC supply store for the best prices and fast shipping on Weil McLain replacement parts!