Proportion-Air, Inc.
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Proportion-Air, Inc. products
Pressure Regulator - Electronic Pressure Regulators - High Flow Valves
Proportion - Model QB4 Series - High Flow Electronic Pressure Controller
The QB4 high flow electronic control valve is a space-saving, compact closed-loop electronic pressure regulator. The QB4 is made up of two solenoid valves, an internal pressure transducer and an electronic control circuit mounted to an integrated volume booster.