MicroAir IV — 0-10V PLC Compatible Pressure Regulator

Control ultra-low air pressure with fast, PLC-compatible 0-10V input designed for bump and taper tubing, medical tubing, catheter lines, automotive tubing, and other precision extrusion applications. Manufactured in the USA by On Line Controls, Inc., MicroAir IV delivers stable, hysteresis-free pressure response, long service life, and dependable support for demanding production environments worldwide.

MicroAir IV pressure regulator on extrusion control panel

Our MicroAir IV Services

Purpose-built MicroAir IV solutions for precision extrusion control, support, configurations, and long-term reliability.

MicroAir IV Sales

Purchase MicroAir IV regulators with 0-10V input for PLC integration, high-speed switching, bump and taper tubing, and precise ultra-low pressure control in extrusion lines.

Multi-Channel Units

Choose single, dual, 3-channel, or 4-channel MicroAir configurations to support multiple extrusion lines or complex tubing processes with consistent pressure control.

Technical Support

Get troubleshooting, installation guidance, maintenance advice, and unlimited phone support for MicroAir IV and related ultra-low pressure regulator applications.

PLC Ready Control

Precision Pressure Control for Extrusion Lines

MicroAir IV is built for manufacturers that need fast, stable pressure regulation during critical tubing processes. Its 0-10V input allows connection to PLCs or other equipment, making it ideal for high-speed switching, bump tubing, and taper tubing. With no calibration required, low maintenance demands, and USA manufacturing, it supports consistent outside diameter control and reliable production performance.

Technician adjusting pressure controls for tubing extrusion
The OLC Difference

Why Choose On Line Controls, Inc.?

Work with the recognized industry leader in ultra-low air pressure regulators.

Proven Precision

Controls pressure below 1 inch of water for demanding extrusion applications.

USA Made

Manufactured at the Shrewsbury, Massachusetts facility for consistent product quality.

Long Lifespan

Designed for low maintenance and 10-20+ years of reliable operation.

Expert Support

Unlimited phone support and decades of extrusion control experience guide every purchase.

Meet The OLC Team

Experienced leadership behind MicroAir precision control.

Kay DeWolfe, President of On Line Controls

Kay DeWolfe

President

Kay DeWolfe serves as both owner and President of On Line Controls, Inc., bringing over 35 years of invaluable experience to the industrial pressure control industry. Under her leadership, the company has maintained its position as the recognized industry leader in ultra-low air pressure regulators for plastic tubing extrusion. Kay's extensive background in precision manufacturing and customer support has been instrumental in expanding OLC's global reach to serve customers across 18 countries while maintaining the highest quality standards. Her commitment to engineering excellence and customer satisfaction continues to drive the company's innovation in pressure control technology, ensuring that OLC's MicroAir and motorized potentiometer products remain the industry standard for precision and reliability.

Frequently Asked Questions

What is the MicroAir IV used for?

MicroAir IV is an ultra-low air pressure regulator used for internal air support during free extrusion of plastic tubing and profiles. It helps manufacturers maintain precise tubing outside diameter and stable process conditions. Common applications include medical tubing, catheter tubing, plastic straws, automotive tubing, and extrusion lines requiring fast pressure changes.

How does MicroAir IV connect to a PLC?

Is MicroAir IV suitable for bump and taper tubing?

What pressure ranges are available for MicroAir units?

Can MicroAir IV be ordered in multiple channels?

Does MicroAir IV require calibration?

What warranty and support are included?

Can MicroAir IV be shipped internationally?

Need Help Specifying MicroAir IV?

Talk with OLC for application guidance and product details.

Certified & Trusted

Awards and Recognition

CE compliant certification logo

CE Compliant

Supports international product shipping requirements.

MPO Magazine feature recognition

MPO Magazine Feature

Recognized for extrusion industry expertise.

USA manufacturing trust indicator

USA Manufacturing

Built domestically for reliable quality control.

Ready to Discuss MicroAir IV?

Share your extrusion application, pressure range, channel needs, and PLC requirements. The OLC team will help you identify the right MicroAir IV configuration and next steps.

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.