FCI’s dual alarm FLT93 Flow Switch reliably monitors the flow and temperature of liquids, gases, and slurries. The pump offers dual alarm capability, with Alarm 1, the switch will detect a low flow situation anywhere between 0.01 and 3 feet per second FPS. This low flow alarm is a pre-warning signal for the operator to decide to keep the pump running or to shut it down.

If an Alarm 2 occurs because the feed line to the pump is running dry, this condition would be an emergency signal to shut down the pump. In such situations, the temperature of the bearings may rise fast. Using a flow switch prevents permanent damage to the pump’s bearings that will require an overhaul of the pump before more damage occurs.

The advanced FLT93 Flow Switch is a dual-function instrument that indicates both flow and temperature, and/or level sensing in a single device. Dual 6A relay outputs are standard and are assignable to flow, level or temperature. The switch is hydrostatically proof pressure tested to 3500 psig [240 bar (g)] at 70°F (21°C). De-rated with temperature, the maximum operation service recommended is 2350 psig [162 bar (g)] at 500°F (260°C). Higher ratings are available with special construction and test certification.

Fluid Components International LLC.
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