Weil-McLain®, 383500025, Hydronic Gas Valve, 1/2 in

Weil-McLain 383-500-025 Replacement Gas Valve for Ultra Gas Boilers

The Weil-McLain 383-500-025 Gas Valve is a direct replacement part designed for use with Weil-McLain Ultra Series gas boilers. This OEM valve assembly regulates fuel flow to the burner, maintaining consistent combustion performance and system safety in modulating condensing boiler applications.

Manufactured to original equipment specifications, this component is suitable for servicing existing Ultra boiler installations where precise gas control and compatibility with system electronics are critical. The 24V control signal and 1/2" NPT inlet make it fully compatible with factory configurations.

Product Features

• Application: Replacement gas valve for Weil-McLain Ultra series boilers
• Voltage: 24 VAC coil control
• Inlet Size: 1/2 inch NPT
• Design: OEM component with integrated safety shutoff
• Fuel Type: Natural gas

Installation Guidance

Installation must be performed by a qualified technician familiar with gas-fired boiler systems. Proper leak testing, combustion analysis, and control system calibration are required after replacement. Ensure gas pressure settings conform to manufacturer requirements.

Professional Use Notes

This gas valve is engineered to meet the performance and safety standards of Weil-McLain Ultra boilers. It supports modulation control and integrates with existing electronic control boards. Do not substitute with non-OEM parts, as combustion parameters are calibrated to this specific valve model.

System Compatibility

• Model Number: 383-500-025
• Boiler Series: Weil-McLain Ultra Gas Boilers
• Certification: Manufactured to Weil-McLain specifications for safety and performance

Important Considerations

This valve must be installed per Weil-McLain service manual instructions. Field installation without proper combustion testing or outside of approved boiler models may result in system malfunction or code non-compliance.

Summary

The Weil-McLain 383-500-025 Gas Valve restores critical burner control functionality in Ultra Series boilers. Its OEM design ensures precise operation and compatibility with factory configurations, supporting reliable boiler performance in residential and light commercial applications.