Pressure regulators handle unstable applications
A
Parker-Origa product story
Edited by the Engineeringtalk editorial team
Jun 24, 2008
Even with fluctuating input pressures, the SRE and CRE Airfit Control series will offer precisely regulated outputs between 0 and 10bar.
Hoerbiger-Origa has extended its Airfit Control range of proportional pressure regulators with new models that bring truly dynamic control and precise regulation to applications requiring large and rapidly changing pressure differences, high flow rates, or extremes in input or output pressures.
The Airfit SRE and CRE Control pressure regulators cover size ranges from 0.25in (G 1/4) to 2in (G2).
They deliver precise and reliable pressure regulation in applications with high temperatures, high levels of vibration or high levels of contamination.
Airfit regulators uses two directional valves for converting electrical pulses to pilot pressure.
This forced ventilation of the pilot chamber means there is no permanent air consumption and means that the quantity of air pressure required during the regulation process is extremely low.
The self-regulating seal between the pilot chamber and the output prevents the 'stick-slip' phenomenon.
The result is a design that combines precise control with high dynamics, while offering an extremely long and reliable service life.
The eight variants in the extended Airfit range cover input pressures up to 16bar, while the elimination of 'stick-slip' means the products will operate reliably at the very lowest input pressures.
Even with fluctuating input pressures, the SRE and CRE Airfit Control series will offer precisely regulated outputs between 0 and 10bar.
The design also allows the products to deliver reliable regulation at flow rates of up to 40,000 litres a minute.
The regulators are controlled via SPS PLC or potentiometer, with either 0-10V, 0-20 or 4-20mA.
The systems are suitable for use with compressed air and gases such as oxygen, nitrogen and various inert gases.
The Airfit Control proportional pressure regulators suit applications including: metering and mixing of fluids; band-edge control of conveyor belts and wrapping systems; tension regulation; laser cutting; welding; vacuum generation: driving air motors and air tools; weight compensation for handling tools; grinding and polishing; and milling and welding.
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