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Flow Switch enables flow control from outside pipe.

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Flow Switch enables flow control from outside pipe.
Flow Switch enables flow control from outside pipe.
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May 2, 2014 - Installed in minutes without drilling or cutting, Model DFS (Doppler Flow Switch) 5.1 controls flow of wastewater, slurries, caustics, acids, and difficult liquids via non-contacting ultrasonic sensor mounted on outside of ˝ in. dia or larger pipes. Water tight NEMA4X switch enclosure includes 5 A DPDT control relay with adjustable ON and OFF set point controls, adjustable time delay, and flow rate bar graph. Switch is suited for pump protection, valve control, and flow/no-flow alarms.

Control Flow From Outside a Pipe - New Flow Switch

Greyline Instruments, Inc.
105 Water St.
Massena, NY, 13662

Press release date: May 1, 2014

This new Model DFS 5.1 Doppler Flow Switch controls flow with a non-contacting ultrasonic sensor mounted on the outside of pipes ˝ inch diameter or larger. It installs in minutes. No pipe drilling or cutting is required and there is no maintenance.

The Greyline DFS 5.1 is designed for pump protection, valve control and flow/no-flow alarms. It is ideal to control wastewater, slurries, caustics, acids and "difficult" liquids. The water tight NEMA4X switch enclosure includes a 5 ampere DPDT control relay with adjustable ON and OFF set point controls, adjustable time delay, flow rate bargraph and relay status LED's. A sensor mounting kit is included with each switch and sensor cable can be extended up to 150 m.

Greyline Instruments Inc.,
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