
Single Channel MicroAir I
- Below 1" water regulation
- 10-20 year life expectancy
- 4½" Magnehelic display
CE Compliant
Bellofram Type 91 Subminiature Air Regulators provide ultra-precise pressure control from 0-5 PSI with 5mm NPT connections. These compact regulators feature hysteresis-free operation, manual adjustment capabilities, and stable performance for critical applications requiring exact pressure regulation in space-constrained environments.










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Available pressure ranges from 0-3 inches of water up to 0-5 PSI for precise tubing control applications.
Talk to our experts for custom solutions and tailored guidance.

Precise air pressure control for medical tubing, catheter production, and sterile tubing applications.

Ultra-precise pressure regulation for automotive tubing extrusion and profile manufacturing.

Industry-standard air pressure control for plastic profile extrusion and tubing diameter control.
Talk to our experts for custom solutions and tailored guidance.
Industry-leading ultra-low air pressure regulators with proven reliability and precision for plastic tubing extrusion applications worldwide.
Our MicroAir regulators deliver 10-25 year operational life with minimal maintenance requirements and no calibration needed.
3-year warranty on all products with unlimited phone support and expert technical assistance for optimal performance.
Get expert technical guidance and pricing for your precision air control needs. Our team responds quickly with detailed specifications.
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