Description
The Weil McLain 510-811-641 is an OEM combination gas control valve engineered as a direct replacement for compatible Weil McLain boilers and heating appliances. Designed for thermopile-only operation at 24 volts, this valve integrates multiple gas control functions into a single compact assembly, simplifying installation and reducing potential leak points in the gas train.
Key Features
- Combination gas control valve — integrates pressure regulation, manual shutoff, and automatic gas valve functions in one unit
- 3/4″ inlet x 1″ outlet NPT connections for straightforward in-line installation
- 24-volt thermopile-only operation — no external transformer required; powered entirely by the system’s thermopile generator
- OEM Weil McLain replacement part — ensures proper fit and performance for compatible boiler models
- Compact, single-body design reduces installation complexity and potential leak points
- Durable construction built to withstand the demands of continuous residential and light commercial heating applications
Specifications
- SKU: 510-811-641
- Brand: Weil McLain
- Valve Type: Combination Gas Control Valve
- Inlet Connection: 3/4″ NPT
- Outlet Connection: 1″ NPT
- Operating Voltage: 24 Volt Thermopile Only
Application
This valve is intended for use as an OEM replacement in Weil McLain boiler systems that utilize a thermopile power source. Always verify compatibility with your specific boiler model and serial number before installation. Installation should be performed by a qualified HVAC or gas technician in accordance with all applicable local codes and manufacturer guidelines.
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