McDonnell & Miller 149500 67-LQHU Mechanical Low Water Cut-Off
McDonnell & Miller 149500 67-LQHU Mechanical Low Water Cut-Off
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Apply for Trade Account & Terms →| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 149500 |
| Model Designation | 67-LQHU |
Ensure consistent boiler protection with the McDonnell & Miller 149500, a high-performance mechanical low water cut-off designed for steam boilers. The 67-LQHU model provides a reliable safety mechanism to prevent burner operation when water levels drop below the required threshold, effectively mitigating the risk of dry firing and overheating.
This device functions through a precision-engineered float assembly that moves in response to the boiler water level. When the float reaches a critically low point, it triggers a switch that breaks the burner circuit, providing an essential layer of safety for commercial and residential hydronic systems.
Key System Performance Baselines:
- Safety Protection: Prevents dry-firing conditions by automatically interrupting the burner circuit during low-water events.
- Robust Construction: Engineered with durable materials to withstand the demanding pressures and temperatures of steam heating environments.
- Reliable Operation: Mechanical design offers proven, consistent performance without the need for complex electronic sensors.
⚠️ Application Profile: Ideal for steam boilers in commercial, industrial, and residential heating applications requiring dependable, heavy-duty low water protection.
