PRF Series

The Univer PRF Series proportional flow control valves are characterised by high performance, accuracy, linearisation, stability and provide an operationally safe design. Pneumatic control is effected via a microprocessor in which the desired control signal is specified as an analog or digital signal. A DP sensor (PE converter) measures differential pressure at an orifice gauge and sends a permanent signal as an actual value to the electronics for comparison. The latter then actuates a proportional solenoid valve to achieve a very fast, precise and proportional flow linearised with the control signal.

Model PRF020 PRF100
Port Size G1/8 G3/8
Voltage 24 VDC 10% 24 VDC 10%
Electrical Power Consuption 12.5 W (max) 24.5 W (max)
Pressure Supply 8 bar max 8 bar max
Weight 0.75kg 0.75kg
Operating Temperature -5° > +70°C -5° > +70°C
Electrical Connection Cable Gland
Medium Compressed Air & Neutral Gases
Filtration 50 μm Minimum Filtration
IP Rating IP 67
Hysteresis 1% of Corresponding Range
Repeatability 0.5% of Corresponding Range