Replace Failing Pressure Regulator on Extrusion Line

Common signs of a failing pressure regulator include inconsistent tubing outside diameter, pressure drift or instability at the output, inability to hold a set point under varying flow rates, and audible air leaks. If your current regulator exhibits hysteresis or slow response that no longer meets process tolerances, it is likely time to replace it.

OLC MicroAir replacement regulators are available in pressure ranges from 0–2 inches of water up to 0–5 psi. Specific 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. Each unit can be configured with the range that matches your original extrusion line setup.

Replacement MicroAir units are available with three control interface options: manual-only 30-turn knob for simple set-and-hold applications, contact closure input (Air Up / Air Down) for integration with diameter gauges or external controllers, and 0–10V analog input for direct PLC control. High-speed models with less than 0.1-second response are available for bump and taper tubing applications.

Channel count should match the number of lumens or air circuits on your extrusion line. Single-channel units suit standard single-lumen tubing. Dual-channel units handle two independent pressure circuits. Three-channel and four-channel MultiAir units are designed for multi-lumen medical or industrial tubing where each lumen requires separate, independently controlled air pressure.

Yes. OLC MicroAir regulators use standard ¼" NPT male air fittings and accept 110/220 VAC 50/60Hz dual-selectable voltage input, making them broadly compatible with existing factory air supplies and electrical infrastructure. Units mount vertically with four 5/16" diameter holes and are housed in stainless steel enclosures sized similarly across the product range.

Every OLC MicroAir replacement unit includes a three-year warranty covering parts and labor, unlimited phone technical support, and range change service (free within 30 days of purchase on select models). Units ship worldwide via UPS, DHL, or FedEx from OLC's Shrewsbury, Massachusetts facility. The company also offers ongoing technical guidance directly from experienced engineers.