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McDonnell & Miller 113200 FS-1 1/2" Liquid Flow Switch

McDonnell & Miller 113200 FS-1 1/2" Liquid Flow Switch

Brand: McDonnell & Miller SKU: 113200
Regular price $358.95 USD
Regular price Sale price $358.95 USD
Sale Out of Stock - Call to Order
Ships Direct from Distribution β€” Dispatches in 24–48 Hrs
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Performance ParameterEngineering Baseline Value
Manufacturer Part Number (MPN)113200
Model DesignationFS-1
Connection Size1/2" NPT

Protect your hydronic equipment from damage caused by insufficient flow with the reliable 113200 FS-1 liquid flow switch by McDonnell & Miller. This precision-engineered device is designed to monitor flow rates in various piping systems, triggering electrical contacts to ensure pumps, heaters, or cooling systems remain protected during unexpected flow fluctuations.

The unit functions by utilizing an internal paddle mechanism that detects liquid movement within the pipe. When the flow drops below or rises above the set threshold, the switch acts to open or close an electrical circuit, providing a critical feedback loop for automated system control and emergency shutdown safety protocols.

Key System Performance Baselines:

  • Precision Sensing: Reliable detection of flow status to safeguard expensive boiler and chiller equipment.
  • Rugged Construction: Built to withstand demanding industrial and commercial HVAC environments.
  • Simplified Installation: Designed for straightforward integration into existing 1/2" NPT piping configurations.
  • Safety Assurance: Provides consistent, repeatable switching actions to prevent dry-fire or overheating conditions.

⚠️ Application Profile: Ideal for monitoring water flow in chilled water systems, hot water boilers, liquid transfer lines, and booster pump installations requiring positive flow confirmation.

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