McDonnell & Miller 172806 150S-M Combo Low Water Cut-Off and Pump Controller
McDonnell & Miller 172806 150S-M Combo Low Water Cut-Off and Pump Controller
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Apply for Trade Account & Terms →| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 172806 |
| Model Designation | 150S-M |
Maintain consistent boiler water levels and prevent critical equipment failure with the McDonnell & Miller 172806 150S-M combo unit. Designed for steam boilers, this versatile assembly serves as both a primary low water cut-off and an automatic pump controller, ensuring that feedwater is supplied precisely when needed to protect the pressure vessel. By integrating these two essential functions, the 150S-M provides a robust safety solution that helps minimize downtime and extends the service life of commercial heating systems.
The unit operates using a high-precision internal switch mechanism that monitors the boiler water line. When the water level drops below the designated set point, the integrated pump controller activates the feedwater pump; if the level continues to fall below the critical safety threshold, the low water cut-off function automatically interrupts burner operation to prevent dry firing and heat exchanger damage.
Key System Performance Baselines:
- Dual-Function Safety: Provides integrated pump control and low water shut-off in a single, compact housing.
- Robust Construction: Engineered to withstand the rigors of high-pressure commercial steam boiler environments.
- Reliable Switching: Features precise mechanical control for consistent water level regulation.
- Safety Compliance: Helps facilities meet code requirements for mandatory boiler water level supervision.
⚠️ Application Profile: Ideal for light-to-medium commercial steam boilers, industrial processing steam systems, and building heating applications requiring redundant water management controls.
