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Flow Switch

27 Products
Economical Brass Flow Switches

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.

3/4 in Flow Switches for Threaded Plastic Piping

The FS-100-Series offers low cost flow monitoring with a variety of switch actuation points and low pressure drop. All wetted parts are polypropylene.

Thermal Dispersion Flow Switches for Use With Gases

The FST-320-Series thermal dispersion flow switches, especially designed for use with gases, sense changes in the heat transfer characteristics of the gases.

Vane Flow Switch for Boilers & Heaters, Adjustable 1-8 in Pipes

The Series FS-2 Vane Flow Switch is designed for boilers and heaters, adjustable for 1-8" pipes. Ideal for flow proving in various applications, featuring durable aluminum housing.

Mini Flow Switches for 1/2 to 2 in Pipelines, Brass or SS Body

The Series V10 Mini Flow Switches monitor flow in 1/2 to 2-inch pipelines. Available in brass or stainless steel, they ensure reliable performance for various applications.

Thermal Dispersion Flow Switches for Liquids

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.

Non-magnetic Industrial Flow Switches - Ideal for Rusty Water

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.

Flotect® Flow Switches: Weatherproof, Explosion-Proof, Low Flow Protection

The Flotect® Flow Switches provide reliable low flow protection in weatherproof and explosion-proof designs. Ideal for safeguarding pumps and systems in demanding environments.

Compact Fan and Filter Fan Air Flow Switch

The FSW800B-Series air-flow monitor provides a simple but reliable alternative to indicate positive or negative air flow of fans.

Trim to Size Paddle Type Flow Switch

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.

Industrial Flow Switches - From 2 to 15 Feet/second

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.

Heavy Duty Paddle Flow Switch

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.

Compact Flotect® Flow Switch – Weatherproof, NEMA 4, Fits 1/2 to 2 in Pipes

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.

Piston Flow Switch for Air/Water, 0.05-1 GPM, SPST Reed, FDA Compliant

The P2 Flow Switch features a compact piston design for air and pure water applications, with FDA compliant materials, ideal for monitoring filter life and cooling systems.

Thermal Dispersion Flow Switches

The FSW-6000/7000-Series are thermal flow switch monitors designed to monitor flow status and also used to detect level of liquids, air and gas with visual indication of flow

Vane Flow Switch for 1-6 in Pipes, 150 psig, 212 °F - Chemical & HVAC Use

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.

Flow Switch, LED Indicators, Adjustable Flow Rate, NO/NC Outputs

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.

Brass High Pressure Flow Switches, 0.25-2.0 GPM, Industrial Use

The Brass High Pressure Flow Switches are designed for industrial use, managing liquid flow from 0.25 to 2.0 GPM. Ideal for cleaning and lubrication systems.

Liquid Flow Transmitter and Switch with Visual Indication

The FSW-9000-Series is a flow switch monitor that measures the velocity of the flow. The-Series provides two output options: a 4 to 20mA analog output and a PNP/NPN output.

Flow Switch With Compact Relay Controller

This switch package offers a complete solution for flow or no-flow switching in pipes or ducting up to 12'. The compact relay controller actuates valves, pumps, or blowers.

Flow Switch

Flow switches are vital for industrial, commercial, and lab applications. DwyerOmega provides diverse options, including economical air flow switches, heavy-duty paddle switches, and thermal dispersion models for liquids. Ideal for precise flow monitoring and control.
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