Weil McLain 511-044-287 Gas Valve

The Weil-McLain 511-044-287 Gas Valve is a critical replacement component for natural gas boilers requiring a high-capacity 1-inch NPT combination gas valve. Engineered for 24V control circuits, this redundant solenoid valve ensures precise fuel flow regulation and safe ignition cycles in commercial and high-output residential hydronic systems. This OEM Weil-McLain gas valve serves as a direct drop-in for CGa and GV boiler gas valves, maintaining the original equipment manufacturer’s pressure drop specifications and flow coefficients. Designed for natural gas boiler service, the unit integrates a pilot outlet and adjustable regulator to manage manifold pressure effectively. For technicians performing Weil-McLain boiler troubleshooting, this valve provides the necessary reliability for gas furnace valve replacement in systems where intermittent pilot or standing pilot configurations are utilized. Its heavy-duty construction handles the high BTU demands typical of larger 1" piping architectures without compromising response time or seating integrity during high-cycle operation.

• Industry Standard 1" x 1" NPT: Simplifies retrofits in high-BTU applications without requiring additional pipe reducers or manifold modifications.
• Standard 24V Operation: Ensures seamless integration with existing Weil-McLain control boards and thermostats.
• Natural Gas Specific: Factory-calibrated for NG applications to provide stable manifold pressure and efficient combustion.
• Redundant Valve Design: Features dual internal seating for enhanced safety and strict adherence to fuel-gas codes.

Is the 511-044-287 compatible with Propane (LP)?
This specific model is configured for Natural Gas. Converting to Propane requires a manufacturer-approved LP conversion kit and verification of the spring regulator specifications.

What are the signs of a failing Weil-McLain gas valve?
Common indicators include delayed ignition, failure to hold a pilot flame, or the main burners failing to engage despite a call for heat and 24V present at the terminals.

Can this valve be mounted in any orientation?
For optimal performance and to meet venting requirements, it should be installed in accordance with the manufacturer's specified orientation, typically upright with the dial or solenoid on top.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.