Description
The Weil McLain 511-044-508 is a two-stage natural gas valve engineered for precise fuel delivery and reliable combustion control in Weil McLain boiler systems. Featuring independent low-fire and high-fire adjustment capability, this valve gives technicians the flexibility to fine-tune burner performance for maximum efficiency and system longevity.
Key Features
- Two-stage operation for improved combustion efficiency and comfort
- 1/2″ NPT connection for straightforward installation
- Low-fire outlet pressure: 0.9″ W.C. — independently adjustable
- High-fire outlet pressure: 3.5″ W.C. — independently adjustable
- Designed specifically for natural gas applications
- OEM replacement part for compatible Weil McLain boiler models
- Low-fire and high-fire settings are both field-adjustable for precise commissioning
Product Specifications
- SKU: 511-044-508
- Brand: Weil McLain
- Gas Type: Natural Gas
- Valve Stages: Two Stage
- Connection Size: 1/2″
- Low-Fire Outlet Pressure: 0.9″ W.C.
- High-Fire Outlet Pressure: 3.5″ W.C.
- Adjustment: Low Fire and High Fire Adjustable
Why Choose the Weil McLain 511-044-508?
Two-stage gas valves offer a significant advantage over single-stage designs by allowing the burner to operate at a reduced firing rate during mild demand conditions. This reduces short-cycling, lowers fuel consumption, and extends the service life of the heat exchanger and related components. The field-adjustable low-fire and high-fire pressure settings make commissioning straightforward for qualified HVAC technicians, ensuring the system operates within manufacturer-specified parameters. As a genuine Weil McLain OEM part, the 511-044-508 ensures compatibility and maintains warranty integrity on supported boiler models.
