Inches-of-Water Pressure Regulator for Tubing Extrusion

All OLC MicroAir inches-of-water pressure regulators use ¼" NPT male fittings for both air input and output connections. The air input connects to standard factory compressed air regulated down to approximately 45–65 psi depending on the model, which the regulator then steps down to the required ultra-low extrusion pressure.

OLC MicroAir regulators are available in multiple pressure ranges: 0-2", 0-3", 0-5", 0-10", 0-15", and 0-30" of water, as well as 0-3 psi and 0-5 psi. This broad range covers everything from micro-tube and catheter extrusion requiring pressures below 1" of water to larger-diameter automotive tubing applications.

MicroAir I models offer manual control via a precise 30-turn knob. MicroAir II models add contact closure input compatibility for integration with O.D. gauges and diameter controllers. MicroAir IV models feature a high-speed voice-coil motor with 0-10V analog/PLC input, enabling response times under 0.1 second — ideal for bump and taper tubing applications requiring rapid pressure switching.

Yes. OLC offers 2-channel, 3-channel, and 4-channel MicroAir configurations specifically designed for multi-lumen tubing. Each channel operates independently and can be configured with a different pressure range and its own display, providing precise simultaneous control of each lumen's internal air pressure during extrusion.

Yes. OLC MicroAir regulators are widely used in the manufacture of medical tubing, catheter tubing, and multi-lumen tubing. Their hysteresis-free, ultra-low pressure regulation ensures tight dimensional control required in medical-grade extrusion. All units are CE compliant for international shipping and are manufactured in the USA to high quality standards.

All OLC MicroAir pressure regulators include a three-year warranty on parts and labor with unlimited phone support. A range change service is also available — free within 30 days of purchase on select models. Technical documentation and support resources are available through the company's services page and product manuals.