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Smart 120100 | Flow Switch Fs7-4e Single Pole Double Throw With Nema 7/9 Enclosure 1-1/4 Inch Npt | Mcdonnell Miller Up To 70% Off [IBQMOU1E]

$79.99 $255.99 -69%

Flow Switch FS7-4E Single Pole Double Throw Experience the reliability and efficiency of the McDonnell Miller FS7-4E flow switch, a single pole, double throw (SPDT) device designed for liquid flow control applications. This versatile and durable swit

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Smart 120100 | Flow Switch Fs7-4e Single Pole Double Throw With Nema 7/9 Enclosure 1-1/4 Inch Npt | Mcdonnell Miller Up To 70% Off [IBQMOU1E]

Flow Switch FS7-4E Single Pole Double Throw

Experience the reliability and efficiency of the McDonnell Miller FS7-4E flow switch, a single pole, double throw (SPDT) device designed for liquid flow control applications. This versatile and durable switch is encased in a robust NEMA 7/9 enclosure, making it suitable for various industrial environments. With a 1-1/4 inch NPT connection and a 12-pound weight, the FS7-4E is built to withstand the demands of diverse piping systems. Its flow rate range of 0.5 to 15 GPM and maximum pressure of 150 PSI ensures optimal performance in a wide array of applications.

Key Product Features

The McDonnell Miller FS7-4E flow switch is equipped with an array of features that make it an excellent choice for liquid flow control. It operates on a 120/240 VAC power supply and offers a switching capacity of 15 amps at 120 VAC or 10 amps at 240 VAC, ensuring reliable performance in demanding conditions. The switch boasts a pressure range up to 150 PSI and an operating temperature of -40°F to 180°F, making it suitable for a variety of liquid flow control applications. Its electrical connections are made through a 1/2-inch NPT conduit hub, and it holds approvals from UL, CSA, and FM, ensuring compliance with the highest safety standards.

Applications and Benefits

The McDonnell Miller FS7-4E flow switch is widely used in applications such as pumps, chillers, and cooling towers, where precise monitoring and control of liquid flow are critical. The switch's ability to detect flow rates in the range of 0.5 to 15 GPM ensures that it can meet the needs of both small and large-scale operations. With its durable construction and reliable performance, the FS7-4E is an ideal choice for maintaining optimal efficiency and preventing system malfunctions. Order your FS7-4E flow switch today from our trusted HVAC store and enjoy fast shipping and competitive prices. To help you get started, we offer a comprehensive installation manual and specification sheet for your convenience.

What Our Customers Say

February 2, 2026

Absolutely no complaints!

The performance is consistently reliable.

- Thomas Ross.

February 2, 2026

Absolutely no complaints!

It has exceeded my needs and expectations.

- Genesis Patterson.

February 2, 2026

Absolutely no complaints!

This has improved my workflow tremendously.

- Bruce Howard.

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