Proportion-Air, Inc.
Proportion - Model QL3 Series -Electronic High Resolution, High Flow Pressure Regulator
The QL3 high resolution, high flow electro-pneumatic pressure regulator allows high volumes of air to move quickly and precisely.
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- Unique analog PID circuit integrates error-out quickly, resulting in superior resolution
- Variable orifice solenoid avoids the pressure “steps” prevalent in most feed and bleed I/Ps
The QL3 improves and builds on the proven technology of the Proportion-Air QB3 series by using a current driven variable orifice solenoid valve and a unique analog PID circuit. This variable orifice solenoid avoids the pressure “steps” prevalent in most feed and bleed I/Ps. The combination of a step-less solenoid valve with a high-speed analog PID on a high flow volume booster allows a lot of air to be moved in a hurry, but precisely.
The output is proportional to the electrical input or command signal and an analog monitor output signal is standard.
- Pressure Range: 0-5 PSI thru 0-125, 8.6 Bar
- Resolution: ±0.05% F.S.
- Accuracy: ±0.4% F.S.
- Max Flow: 25 SCFM, 708 LPM
- Port Size: 1/4″ NPT, BSPP Available
- Durability: Immune to shock & vibration (up to 20 Gs)
- Operating Temps: 32-158°F (0-70°C)
- Filtration: 40 Micron