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Proportional Pressure Regulator |
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Piezotronic technology has also been applied to proportional regulator units offering many advantages. Conventional pressure regulators comprise a pressure sensor measuring the outlet pressure, and providing a feedback signal to an amplifier. This signal is then compared to the control signal and the difference is converted to a digital signal, which energises one or the other of 2 internal two-way solenoid valves. With this type of regulator there is a large consumption of air when the valve exhausts through one of the solenoid valves to achieve the required output. The response times are poor and because the 2 solenoid valves are constantly being used, the service life can be low. |
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The Hoerbiger Tecno regulator uses their piezo valve as its pilot unit, providing a fast and highly dynamic pilot signal. The piezo valve is driven via an integrated miniature pressure regulator and fine filter. The output then operates a proportional diaphragm pressure regulator, with two separate seats for pressurising and venting. The outlet pressure is compared with the set pressure via a pressure sensor and is constantly corrected by the electronic system resulting in: · Higher Accuracy · Responsiveness <0.1% · Reaction times of <7ms · Long Service Life · Low power consumption
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| Port Size |
Max Flow Rate (litres/min) |
Output |
Part No: 4-20mA Output |
Part No: Voltage Output |
| G1/8 | 350 | 0-8 Bar | PS 11111-B | PS 11113-B (0-8V) |
| G1/8 | 350 | 0-2 Bar | PS 11139-B-20 | PS 11162-B-20 (0-10V) |
| G1/8 | 350 | 0-0.2 Bar | PS 11139-B-02 | PS 11162-B-02 (0-10V) |