Weil McLain 381-356-534 Gas Valve

The Weil McLain 381-356-534 Gas Valve is an OEM combination gas control valve engineered for precision fuel regulation in high-efficiency propance boilers. Designed with a 1/2" x 1/2" NPT connection, this 24-volt gas valve features a step-open function for controlled ignition and stable burner performance. As a direct replacement for discontinued models like the 511-044-258, it is commonly utilized in the Weil McLain EG Series 2 through 4 boilers configured for liquid propane (LP) applications.

For technicians performing boiler gas valve replacement, this component ensures seamless integration with existing pilot assemblies and 100% compatibility with OEM furnace control systems. The 381-356-534 manages manifold pressure effectively, featuring an adjustable regulator for fine-tuning combustion parameters to meet equipment specifications. Its robust construction and straight-through body pattern facilitate streamlined HVAC part installation in tight cabinet configurations, maintaining safe gas valve operation across broad ambient temperature ranges.

Key Benefits

• Step-Open Functionality: Provides a delayed full-fire sequence for smoother ignition and reduced mechanical stress on the heat exchanger.
• OEM Fitment: Genuine Weil McLain replacement part ensures precise gas valve troubleshooting and eliminates configuration errors associated with universal alternatives.
• LP Gas Optimization: Specifically calibrated for propane applications, offering reliable pressure regulation for high-output burners.
• Compact NPT Porting: Standard 1/2 inch gas line inlet and outlet allow for efficient retrofit and secure threading.

Common Questions

What boiler models is the 381-356-534 compatible with?
This valve is specifically designated for Weil McLain EG series propane boilers, covering sizes 2 through 4, and serves as the official replacement for legacy part numbers such as 511-044-258.

Can this valve be used for natural gas applications?
This specific part is factory-configured for Liquid Propane (LP). While some combination valves allow for conversion, technical documentation should be consulted to ensure manifold pressure and spring kits align with Natural Gas requirements.

How do I verify the electrical requirements?
This is a standard 24 VAC control valve. It should only be used with a 24-volt transformer and intermittent pilot or standing pilot ignition systems depending on the specific boiler series.

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.