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The pneumatic proportional valve controls the outlet pressure
in proportion to an electrical command input signal.
It comprises a complete closed loop servo system in a compact
monoblock assembly with proportional solenoid valve, electronic
regulator and internal pressure transducer.
In the process, the outlet pressure is transformed into a
proportional electrical signal and compared with the input signal.
If the outlet pressure exceeds the preset setpoint, the valve
exhausts down to the pressure desired.
The valve has no constant bleed.
At absence of input signal or supply voltage the valve exhausts.
The power supply of the setpoint potentiometer is provided by the
proportional valve via connector pin number 5.

Open transducers = 100 mbar, 500 mbar, 1 bar and vacuum

Proportional pressure regulators are being used for blowing machines,
ultrasonic equipments, testing machines, painting systems, contouring
systems, laser welding machines, textile machines, cheese presses,
pneumatic brakes, clamping devices and medical engineering.

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