Weil McLain 383-500-030 Valve

The Weil-McLain 383-500-030 Gas Valve / Venturi Kit is a critical OEM replacement component designed specifically for Ultra 230 Gas Boilers. This technician-grade kit ensures precise fuel-to-air mixing ratios, maintaining the high-efficiency performance expected from the Ultra Series. The assembly features a 24V gas valve with a 1/2 inch NPT inlet, engineered to handle the rigorous modulation demands of condensing boiler systems. As a genuine boiler replacement part, it provides a factory-calibrated solution for restoring proper ignition and combustion stabilization in the field. This specific Weil-McLain venturi kit is configured for LP (Propane) Boilers and includes the necessary gas valve/venturi assembly and mounting hardware. When servicing these units, verify that the venturi throat geometry matches the 230 MBH firing rate to prevent CO issues or resonance. Always inspect the O-rings and adapter block during installation to ensure a gas-tight seal on the blower inlet manifold.

• Optimized Combustion: Factory-calibrated gas valve assembly ensures the correct stoichiometric ratio for the Ultra 230 burner.
• Direct Fit Integration: Includes OEM hardware for seamless mounting to the blower and burner interface without field modifications.
• Broad Compatibility: Engineered specifically for Weil-McLain Ultra Series boilers, specifically the 230 size group (Series 1, 2, and 3).
• High-Durability Construction: Built to withstand the moisture and pressure fluctuations typical of high-efficiency LP gas boiler environments.

Is this kit compatible with Natural Gas units?
While the 383-500-030 is designated for propane configurations, it is primarily used to replace the main valve/venturi assembly. Technicians must ensure the specific propane orifice from the existing unit is transferred or verified per the manufacturer’s instructions for LP operation.

What are the symptoms of a failing gas valve/venturi?
Common indicators include persistent "No Ignition" lockouts, erratic flame signals, or excessive noise during the modulation ramp-up, often caused by a sticking solenoid or internal blockages within the venturi throat.

Does this kit include the blower motor?
No, this is a gas valve/venturi assembly kit. It includes the valve, venturi, and necessary gaskets/screws, but the blower motor must be purchased separately if the fan assembly has failed.

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.