Remote control of flow rate – a signal from your system controller allows precise and repeatable selection of flow rates in challenging cooling situations.

Program multiple flows – or shut off the flow completely!

Select multiple flow rates – replace variable flow valves and associated switching valves with a single component.

Achieve consistent flows through parallel paths – changes in downstream restrictions in multiple paths can be easily accommodated by placing a flow controller in each path.

How it works

A helical turbine is spun by the liquid entering the control valve assembly. Its rotational velocity is detected by a Hall Effect sensor, (A) that sends a pulse stream with a frequency proportional to the flow rate to the flow controller (C). The controller circuit compares the measured flow rate with the selected control flow rate. Depending on whether the measured flow rate is greater or lesser than the selected control flow rate, a geared DC stepper motor (B) is pulsed to rotate a vane, which decrease or increase the area of the outlet of the control valve until the target flow rate is achieved.

Flexible control capability - choose from 3 flow control modes

1. Parameter Mode – select the target flow rate through the contoller’s key panel.
2. External Mode – the target flow rate is selected from an external 4–20 mA, 0–5 or 1–5 VDC source.
3. Preset Mode – up to 4 user-selected flow rates are selectable by contact closure across 3 rear panel connections.

Valve can be fully closed – or used with an external shut off valve

Selecting or programming a flow rate of 0 L/min causes the valve to become fully closed in 2 -3 seconds.

The flow controller should be used with a separate shut off valve if faster or frequent shut off is required. The flow controller can be programmed to retain the previous vane position to quickly restore the controlled flow with minimal movement.