Description
The Weil McLain 640-000-088 is a 3-way zone valve engineered for reliable flow control in residential and light commercial hydronic heating systems. Designed to meet the quality standards Weil McLain is known for, this zone valve enables precise diversion or mixing of hot water flow between heating zones, helping to maintain consistent comfort throughout the building.
Key Features
- 3-way valve configuration for diverting or mixing hydronic flow between zones
- Designed for compatibility with Weil McLain boiler systems and hydronic heating applications
- Durable construction built to withstand the demands of continuous hydronic system operation
- Enables individual zone temperature control for improved comfort and energy efficiency
- Direct OEM replacement part for supported Weil McLain systems
Application
This 3-way zone valve is ideal for use in hot water baseboard, radiant floor, and other hydronic heating systems where zone-by-zone temperature management is required. It works in conjunction with zone control panels and thermostats to automate flow based on heating demand.
Why Choose Jackson Systems
Jackson Systems is a trusted HVAC distributor offering genuine OEM parts, fast shipping, and knowledgeable support. Order the Weil McLain 640-000-088 with confidence from Jackson Systems.







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