The “aira” Air Volume Booster Relay (Models VB–01, VB–02, VB–03) is designed for use in pneumatic control valves to receive the positioner’s output signal and supply air pressure to actuators. This significantly reduces response time and improves adjustment precision. It maintains a 1:1 output ratio, responds efficiently to minor input changes, enhances control valve safety through bypassing control, and includes a 100 mesh filter to remove airborne dust. Available in multiple sizes and materials, this booster is ideal for precise air control in industrial environments.