CE Compliant certified

CE Compliant

Made in the U.S.A. certified

Made in the U.S.A.

Buy MicroAir Ultra Low Pressure Regulator Online

MicroAir Ultra Low Pressure Regulators by On Line Controls, Inc. deliver precision air pressure control for plastic tubing extrusion applications. Available in single, dual, three, and four-channel configurations with manual or PLC/analog control, these regulators maintain stable, hysteresis-free performance across pressures from 0-3 inches of water to 0-5 psi.

Single Channel MicroAir II
Single Channel MicroAir IV
Dual Channel MicroAir II
Dual Channel MicroAir I
Dual Channel MicroAir IV
Single Channel MicroAir I
MultiAir 4-channel MicroAir IV
MultiAir 3-channel MicroAir IV
MultiAir 3-channel MicroAir II
MultiAir 3-channel MicroAir I

Our Range of Products

Single Channel MicroAir II

Single Channel MicroAir II

  • Contact closure input from O.D. gauge control
  • Hysteresis-free action, viscostatic damping
  • 0.1" water resolution with digital display
Single Channel MicroAir IV

Single Channel MicroAir IV

  • Sub-0.1 sec response, typically 20 msec
  • 0-10V input for PLC or device control
  • Three modes: Dual State, Linear, Manual
Dual Channel MicroAir II

Dual Channel MicroAir II

  • Dual channel with contact closure input
  • Hysteresis-free, viscostatic damped control
  • Dual-speed manual up/down button control
Dual Channel MicroAir I

Dual Channel MicroAir I

  • Dual channel, precise 30-turn knob control
  • Hysteresis-free, stable pressure regulation
  • Stainless steel enclosure, CE compliant
Dual Channel MicroAir IV

Dual Channel MicroAir IV

  • Dual channel, <0.1 sec high-speed response
  • 0-10V PLC input for bump & taper tubing
  • Voice-coil motor with viscostatic damping
Single Channel MicroAir I

Single Channel MicroAir I

  • Regulates below 1" water with precision
  • 30-turn knob, hysteresis-free regulation
  • 10-20 year expected service life

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Frequently Asked Questions

What pressure ranges are available for MicroAir regulators?

MicroAir regulators are available in pressure ranges from 0-2 inches of water up to 0-5 psi. Specific options include 0-3", 0-5", 0-10", 0-15", and 0-30" of water and up to 0-3 or 0-5 psi, depending on the model. This makes them suitable for extremely precise, ultra-low pressure tubing extrusion applications.

What is the difference between MicroAir I, II, and IV models?

How many channels do I need for my tubing extrusion application?

Can MicroAir regulators connect to a PLC or external control system?

What response time can I expect from MicroAir IV high-speed models?

Are MicroAir regulators CE compliant for international shipping?

Can the pressure range be changed after purchase?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Medical Tubing & Catheter Manufacturing

Medical Tubing & Catheter Manufacturing

Precise ultra-low pressure control ensures consistent lumen dimensions and wall uniformity in catheter and medical tubing extrusion.

Automotive Tubing Production

Automotive Tubing Production

Stable, hysteresis-free air pressure regulation maintains exact outside diameter tolerances during high-volume automotive tubing extrusion.

Multi-Lumen Tubing Extrusion

Multi-Lumen Tubing Extrusion

Multi-channel MicroAir units independently regulate each lumen's air pressure for complex multi-lumen plastic tube profiles.

Plastic Profile & Straw Extrusion

Plastic Profile & Straw Extrusion

Ultra-low pressure regulation from below 1 inch of water supports precise diameter control in plastic straw and profile extrusion lines.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Why Plastic Tubing Manufacturers Choose On Line Controls, Inc.

44+ Years of Extrusion Expertise

Since 1980, OLC has been the recognized industry leader in ultra-low air pressure regulation for plastic tubing extrusion, serving customers across 18 countries worldwide.

Precision Accuracy, Zero Hysteresis

MicroAir regulators deliver ±0.1% full-scale accuracy with hysteresis-free operation and sub-0.1-second response, ensuring consistent tubing diameter across all flow rates.

3-Year Warranty & Lifetime Support

Every MicroAir unit ships with a 3-year warranty on parts and labor, unlimited phone support, and a proven 10–20 year product lifespan requiring no calibration.

Get a Quote for Your MicroAir Pressure Regulator

Submit your requirements and our technical team will respond with pricing, configuration guidance, and application recommendations within one business day.

Contact Us Today

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.