MicroAir Regulator for Medical Tubing Extrusion

MicroAir regulators are available in ultra-low pressure ranges starting from 0–2 inches of water up to 0–5 psi. Range options include 0–3", 0–5", 0–10", 0–15", and 0–30" of water, as well as 0–3 psi and 0–5 psi. A range change service is available, and some units offer a free range change within 30 days of purchase.

MicroAir I models feature manual control via a 30-turn adjustment knob. MicroAir II models add contact closure inputs (Air Up/Air Down) from an OD gauge or external controller, enabling automated closed-loop diameter control. MicroAir IV models accept 0–10V analog or PLC input with high-speed response under 0.1 second, making them ideal for bump and taper tubing applications requiring programmable switching.

Yes. MicroAir IV models accept a 0–10V analog input signal from a PLC or other control device, enabling fully automated pressure management. The high-speed response time of less than 0.1 second (typically ~20 ms for 50% of full scale) makes them well-suited for automated tubing extrusion lines requiring dynamic pressure switching, such as bump and taper tubing production.

For multi-lumen tubing, the MultiAir series — available in 3-channel and 4-channel configurations — is specifically designed to provide independent pressure control for each lumen. Each channel can be set to a different pressure range and includes its own display and output. Models are available in manual (MicroAir I), contact closure (MicroAir II), and 0-10V PLC-controlled (MicroAir IV) variants.

Yes. MicroAir regulators are widely used in medical tubing and catheter manufacturing, where precise, stable, and repeatable air pressure control is critical to maintaining tight dimensional tolerances. All units are CE compliant for international shipping, and several are manufactured in the USA. They serve leading OEM extruder manufacturers including Davis-Standard, Conair, and Gimac.

Every MicroAir unit includes a 3-year warranty covering parts and labor, along with unlimited phone support for the life of the product. OLC also offers a range change service — free within 30 days of purchase on select models. Technical documentation and support resources are available, and the company has been supporting customers since 1980 from its Shrewsbury, Massachusetts facility.