Weil-McLain®, 383500030, Gas Valve Kit, 1/2 in

Weil-McLain 383-500-030 Gas Valve and Venturi Assembly for Ultra 230 Boilers

The Weil-McLain 383-500-030 Gas Valve and Venturi Kit is a factory-supplied replacement component for Ultra Series 230 gas-fired condensing boilers. This assembly is engineered to regulate fuel input and maintain consistent combustion characteristics, ensuring safe and efficient boiler operation.

This OEM kit includes a gas valve and matching Venturi, calibrated specifically for the Ultra 230 model. Designed to support proper burner modulation and performance, the kit is essential for system restoration, service replacements, or addressing combustion faults in field-installed units.

Kit Components

• Gas Valve: 24V electronically controlled valve
• Venturi Assembly: Sized to Ultra 230 specifications

Compatible Application

• Boiler Model: Weil-McLain Ultra 230 only
• Fuel: Natural gas
• Inlet Size: 1/2" NPT
• Voltage: 24 VAC control signal

Installation Requirements

This component must be installed by a qualified HVAC or plumbing technician with experience servicing condensing gas boilers. Proper gas pressure checks, leak detection, and combustion testing are required during commissioning. Use only on model 230 systems; incorrect installation may impair burner function and void system certification.

Professional Considerations

The 383-500-030 kit restores original gas-air mixture control and ensures factory-rated combustion parameters. Replacement should be performed with boiler power isolated, and all OEM safety protocols observed. After installation, verify ignition sequence, valve operation, and combustion values per Weil-McLain service procedures.