
MultiAir 3-channel MicroAir IV
- 0-10V input for PLC or device control
- Sub 0.1s response for bump/taper tubing
- 3 channels in one stainless steel enclosure
CE Compliant
Made in the U.S.A.
The MicroAir 3-Channel Pressure Regulator line from On Line Controls, Inc. delivers ultra-low air pressure regulation for plastic tubing extrusion, medical catheter manufacturing, and automotive tubing. Available in manual, contact closure, and 0-10V PLC-controlled variants, each unit houses three independent channels in a stainless steel enclosure for precise multi-lumen tubing control.






To size a MicroAir 3-channel pressure regulator, identify your required pressure range (e.g., 0–3" of water, 0–5 psi), flow rate, and number of tubing lumens. OLC offers multiple pressure range options per channel, and each channel can be independently configured for different ranges to match your specific extrusion process requirements.
Talk to our experts for custom solutions and tailored guidance.

Delivers ultra-precise multi-channel air pressure control for catheter and medical-grade tubing extrusion lines.

Maintains consistent internal air pressure for dimensional accuracy during automotive tubing and profile extrusion.

Controls internal air support pressure across multiple channels for complex plastic profile and multi-lumen tubing production.

Three independent channels enable simultaneous, precise pressure regulation for each lumen in complex multi-lumen tube designs.
Talk to our experts for custom solutions and tailored guidance.
Since 1980, OLC has been the recognized industry leader in ultra-low air pressure regulation for plastic tubing extrusion, serving 18 countries worldwide.
Every MicroAir unit ships with a three-year warranty on parts and labor plus unlimited phone support, ensuring minimal production downtime.
OLC regulators require no calibration and deliver hysteresis-free, stable operation for 10 to 25 years, reducing total cost of ownership significantly.
Submit your requirements and our engineering team will respond with product recommendations and pricing within one business day.
For immediate assistance, feel free to give us a direct call at 978-562-5353. You can also send us a quick email at olc@onlinecontrols.com.
For immediate assistance, feel free to give us a direct call at 978-562-5353. You can also send us a quick email at olc@onlinecontrols.com.