Dwyer Flow Switches

We offer an extensive range of Dwyer flow switches. You can choose from shuttle/piston and thermal flow switches. 

Shuttle/piston devices are special sensors with an electrical contact output at a specific flow rate. The items are used with air, gases, oil, as well as water. Shuttle or piston flow switches are widely utilized for oil flow control, low flow detection in cooling lines, the list goes on.

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Flow (Dwyer)

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Flow (Dwyer) Products List

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The Series P2 flow switches are a great option for various air and water applications thanks to a prison-type design. The Series P3 polypropylene flow switches meet an array of piping requirements with compatible liquids. The Series P4 PPS flow switches have a molded plastic construction for excellent performance. The devices are used to monitor liquids.

Thermal flow switches from Dwyer are perfect for leak detection. With these devices, you can select NO or NC operation, which is very convenient. These flow switches are used in various applications, for example, chillers and hot water heaters.

The Series TDS thermal dispersion flow switches offer solid-state low detection of non-coating liquids for pump and process protection. These switches can be easily connected with remote PLC or relay control devices. The Series TDFS2 thermal dispersion flow switches indicate if the flow rate is above/below a user set flow rate. The devices feature 2 LED status indicators.

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