McDonnell & Miller 129302 42S Pump Controller and Low Water Cut-Off
McDonnell & Miller 129302 42S Pump Controller and Low Water Cut-Off
Couldn't load pickup availability
TIPS Contract Vendor
We are an officially awarded purchasing cooperative vendor.
📋 Procurement & Shipping Notice
- LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
- Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?
👉 Request a Commercial Quote or contact our procurement team for direct freight scheduling.
Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
Apply for Trade Account & Terms →| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 129302 |
| Model Designation | 42S |
Maintain optimal boiler safety and automated water level management with the McDonnell & Miller 129302, a high-performance 42S pump controller and low water cut-off. This robust control device serves as a critical interface between your water feeder and the boiler, ensuring that pump operations are cycled based on precise internal water levels to prevent dry firing and damage.
The unit utilizes a proven mechanical float assembly that responds directly to changes in water level, triggering the controller to activate or deactivate the boiler feed pump as required. This reliable, heavy-duty mechanism is designed for industrial and commercial steam heating systems where consistent fluid management and system longevity are paramount.
Key System Performance Baselines:
- Precision Sensing: Reliable mechanical float activation ensures accurate water level monitoring.
- Dual Functionality: Integrated pump control and secondary low water cut-off protection.
- System Durability: Robust construction engineered for long-term reliability in high-pressure steam environments.
⚠️ Application Profile: Primarily utilized in commercial steam boiler applications for reliable feed pump management and boiler safety, preventing damage caused by low water conditions.
