McDonnell & Miller 114400 FS4-3 1" Flow Switch
McDonnell & Miller 114400 FS4-3 1" Flow Switch
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Apply for Trade Account & Terms →| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 114400 |
| Model Designation | FS4-3 |
| Connection Size | 1" NPT |
Protect your critical heating and cooling systems from potential dry-fire or flow-related damage with the McDonnell & Miller 114400 FS4-3 1" flow switch. This robust device is engineered to monitor liquid flow in pipes and actuate electrical circuits, ensuring your equipment operates only under safe, optimal flow conditions.
The unit functions by utilizing a paddle-actuated mechanism that detects the presence or absence of flow within the line. When the liquid moves the paddle, it triggers a precision-built internal switch, providing instantaneous status feedback to your system's control board or alarm circuitry.
Key System Performance Baselines:
- Reliable Sensing: Precision mechanical switch design ensures consistent, accurate flow detection.
- High Durability: Built to withstand demanding hydronic environments with professional-grade materials.
- Standardized Connection: Features a 1" NPT connection for seamless integration into common pipe sizes.
⚠️ Application Profile: Primarily used in commercial and residential HVAC systems, chilled water loops, and boiler auxiliary monitoring to prevent pump damage and safeguard heat exchangers from overheating due to stagnant flow.
