McDonnell & Miller 114639 FS4-3RP-T 1" Flow Switch with Test Button
McDonnell & Miller 114639 FS4-3RP-T 1" Flow Switch with Test Button
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Apply for Trade Account & Terms →| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 114639 |
| Model Designation | FS4-3RP-T |
| Connection Size | 1" |
Maintain precise liquid flow monitoring in your HVAC and process systems with the McDonnell & Miller 114639 flow switch. This model FS4-3RP-T is specifically engineered to detect the presence or absence of flow in pipelines, providing critical interlocking control to protect equipment from dry-firing or flow-related damage.
The unit utilizes a precision-engineered paddle mechanism that responds to fluid movement within the pipe. When flow reaches the calibrated velocity, the paddle shifts, actuating a snap-acting switch to signal the control circuit. The integrated test button allows technicians to simulate flow conditions instantly, ensuring the system remains operational without requiring actual pipe-line manipulation.
Key System Performance Baselines:
- Enhanced Safety: Built-in test button functionality for rapid on-site diagnostics.
- Reliable Switching: Precision snap-action design for consistent electrical contact.
- Rugged Construction: Built to withstand the demands of industrial hydronic loops.
⚠️ Application Profile: Ideal for monitoring flow in chilled water systems, hot water heating boilers, booster pumps, and liquid transfer lines where system protection and flow verification are mandatory requirements.
