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Flow Switches
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The FSW800B-Series air-flow monitor provides a simple but reliable alternative to indicate positive or negative air flow of fans.
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The FSW301 flow switch comprises a paddle system with a permanent magnet attached. This construction allows a useful life of up to 100,000,000 switching cycles.
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The Vane Flow Switch is designed for 1-6 inch pipes, ideal for chemical and HVAC applications. It ensures equipment protection with excellent durability and chemical resistance.
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The Series TDFS2 Thermal Dispersion Flow Switch features adjustable flow rates and LED indicators for easy monitoring. Ideal for boilers, chillers, and liquid transfer systems.
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The FST-320-Series thermal dispersion flow switches, especially designed for use with gases, sense changes in the heat transfer characteristics of the gases.
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The FSW-160 is the newest heavy-duty line of flow switches.The switch is used to signal,start,or stop electronically operated equipment when flow or no-flow conditions occur.
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The Compact Flotect® Flow Switch is a weatherproof, NEMA 4 device designed for 1/2 to 2-inch pipes, ensuring reliable flow monitoring for liquids, gases, and air.
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The FST-200 flow switches use thermal dispersion technology to create a very accurate and economical method of sensing flow. Monitor fluids from 0.4 to 1.2 specific gravity.
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The FSW-25 flow switch utilizes the force of liquid flow to propel its paddle and to detect the incoming flow or movement of the existing liquid in the pipe.
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The FSW-40A and FSW-50-Series flow switches feature 15 A SPDT switches. Their non-magnetic design makes these switches ideal for applications in which rust is a problem.
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The FSW-30A flow switches are supplied with six orifices to provide 6 overlapping flow ranges from 0.12 to 8.0 GPM for water. Wetted Parts: brass, 316 SS, phosphor bronze.
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The Series P3 Polypropylene Flow Switches offer versatile inlet options for water and cooling systems. Ideal for pure water equipment and heat exchangers.
Flow Switches
Switches support flow measurement, switching, control, or installation work in liquid, gas, air, water, and process systems. Products in this category span threaded plastic pipe flow switches, thermal dispersion liquid and gas flow switches, compact relay flow switches, heavy-duty paddle switches, trim-to-size paddle switches, and non-magnetic industrial flow switches.
Applications include pump protection, cooling water verification, HVAC hydronic loops, chemical lines, gas flow confirmation, filter monitoring, equipment interlocks, and alarms for low-flow or no-flow conditions. Products represented in the source data include Omega Engineering and Dwyer Instruments.
Applications include:
- Detect flow or no-flow states
- Protect pumps, heaters, chillers, and process equipment
- Switch relays or control circuits
- Use paddle or thermal dispersion measurement
- Match wetted materials to liquid or gas service
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