Direct Acting Diaphragm Pressure Reducing Regulators

OLC MicroAir regulators cover a broad spectrum from ultra-low ranges of 0–2 inches of water up to 0–5 psi. Multiple range options are available including 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 also offered if your process requirements change after purchase.

MicroAir I units offer simple manual control via a 30-turn precision adjustment knob. MicroAir II units add contact closure inputs (Air Up/Air Down) for integration with diameter gauges or external controllers. MicroAir IV units feature a precision voice-coil linear motor with 0–10 volt input, enabling high-speed switching (under 0.1 second response) for PLC integration and bump or taper tubing applications.

Yes. MicroAir II models accept Air Up and Air Down contact closure inputs from diameter gauges or other controllers. MicroAir IV models accept a 0–10 volt analog input for direct PLC connection, offering three operational modes: Dual State, Linear, and Manual Setting. This makes them highly adaptable for automated extrusion line control.

OLC's direct acting diaphragm regulators are primarily used in medical tubing extrusion, catheter manufacturing, automotive tubing production, multi-lumen tubing, bump and taper tubing, plastic profile extrusion, and micro-tube manufacturing. Major OEM extrusion equipment makers including Davis-Standard, Conair, and Graham/AK Brand integrate OLC regulators into their systems.

The number of channels depends on the number of lumens in your tubing. Single channel models are suited for standard single-lumen tubing. Dual channel models handle two-lumen applications. The MultiAir 3-channel and 4-channel configurations independently control three or four lumens respectively, each with its own pressure range, display, and output options.

Yes. All OLC MicroAir regulators ship worldwide via UPS, DHL, or FedEx and are CE compliant for international shipping. Every unit includes a three-year warranty on parts and labor along with unlimited phone support. OLC currently serves customers in 18 countries including the USA, Germany, Japan, China, France, and India, among others.