
MultiAir 4-channel MicroAir IV
- 4 independent channels
- Multi-lumen tubing control
- Programmable high-speed switching
CE Compliant
Explore our advanced inches-of-water pressure regulators, engineered for ultra-low sub-PSI air control in precision plastic tubing extrusion. The MicroAir product line offers unmatched accuracy down to fractions of an inch of water column, with hysteresis-free operation and response times under 0.1 second. Available in manual, contact-closure, and 0-10V input configurations with single to 4-channel models for multi-lumen applications. Made in the USA with a 3-year warranty.











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Select based on your required pressure range (0-3" water to 0-5 psi), flow rate (SCFH), control method (manual/automatic), and number of channels needed for multi-lumen applications. Contact our technical team for application-specific sizing.
Talk to our experts for custom solutions and tailored guidance.

Precise diameter control for catheter and medical tubing extrusion with sub-PSI accuracy ensuring consistent wall thickness and lumen sizing for critical healthcare applications.

Reliable air pressure regulation for automotive tubing production including fuel lines, brake lines, and fluid transfer systems requiring tight dimensional tolerances.

Ultra-low pressure control for bump, taper, and multi-lumen tubing applications enabling precision sizing of extruded profiles with hysteresis-free operation.

Dependable pressure regulation for various plastic profile and tubing production requiring consistent dimensional control across varying production speeds and flow rates.
Talk to our experts for custom solutions and tailored guidance.
Our MicroAir regulators deliver industry-leading accuracy to ±0.1% of full scale with hysteresis-free operation, ensuring consistent tubing quality and minimal waste in your extrusion process.
Built in the USA with a 10-20 year lifespan, our pressure regulators require minimal maintenance and come with a comprehensive 3-year warranty and unlimited phone support.
High-speed switching models respond in under 0.1 second, enabling precise bump and taper control while maintaining stable pressure across varying flow rates from zero to maximum SCFH.
Connect with our engineering team to discuss your specific tubing extrusion requirements. We'll help you select the right pressure regulator configuration and provide expert technical guidance.
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