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McDonnell & Miller 114641 FS4-3S 1" Flow Switch with Stainless Steel Body

McDonnell & Miller 114641 FS4-3S 1" Flow Switch with Stainless Steel Body

Brand: McDonnell & Miller SKU: 114641
Regular price $646.95 USD
Regular price Sale price $646.95 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)114641
Model DesignationFS4-3S
Connection Size1 inch
Body ConstructionStainless Steel

Maintain consistent flow detection in your hydronic or industrial piping systems with the McDonnell & Miller 114641 FS4-3S, a high-performance flow switch engineered for reliability. This unit, identified by part number 114641, is specifically designed to monitor liquid flow and trigger automated responses to protect sensitive equipment from no-flow conditions.

The device operates by utilizing a precision-engineered paddle mechanism that responds to fluid movement within the pipe. When flow drops below the set point, the internal switch triggers, making it an essential component for pump protection, chiller management, and liquid monitoring systems where operational uptime is critical.

Key System Performance Baselines:

  • Material Integrity: Features a robust stainless steel body for superior chemical resistance.
  • Bellows Durability: Equipped with a Monel bellows assembly to withstand demanding fluid environments.
  • System Integration: Designed for seamless installation into standard 1-inch piping configurations.

⚠️ Application Profile: Ideal for commercial HVAC chillers, boiler feed systems, liquid processing lines, and booster pump protection where durable flow monitoring is required.

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