Description
Weil McLain 381-356-534 Combination Gas Control Valve
The Weil McLain 381-356-534 is a combination gas control valve engineered for dependable performance in residential and light commercial boiler applications. Featuring a step-open design, this valve opens in stages to deliver smooth, controlled gas flow — reducing the risk of pressure surges and ensuring consistent burner ignition. With 1/2″ x 1/2″ NPT inlet and outlet connections and 24-volt operation, it integrates seamlessly into standard boiler control circuits.
Key Features
- Combination gas control valve — integrates pressure regulation, safety shutoff, and flow control in a single unit
- Step-open operation for smooth, staged gas delivery and reduced pressure shock
- 1/2″ x 1/2″ NPT inlet and outlet connections for straightforward installation
- 24-volt coil voltage — compatible with standard residential and commercial boiler control systems
- Genuine Weil McLain OEM replacement part (SKU: 381-356-534)
- Designed for natural gas or LP gas applications (verify compatibility before installation)
Application
This combination gas control valve is a direct OEM replacement for compatible Weil McLain boilers. It is ideal for HVAC technicians and contractors performing boiler maintenance, service, or component replacement. The step-open feature supports reliable ignition sequences and stable burner operation across a wide range of heating loads.
Installation Notes
- Confirm gas type (natural gas or LP) compatibility with your specific boiler model before installation
- Ensure power is disconnected before servicing or replacing the gas valve
- Follow all local codes and manufacturer guidelines during installation
- Consult the Weil McLain boiler service manual for wiring and mounting specifications
