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Volume Boosters / Relays

Bellofram volume boosters and air relays are essential components designed to significantly increase flow capacity and enable precise remote pressure control in pneumatic systems. These advanced units operate by utilizing a pilot pressure signal, providing highly responsive and accurate output pressure adjustments, rather than relying on a manual knob. This method allows for efficient control in critical applications, ensuring rapid system response and optimal performance where quick and reliable air flow amplification is required.

Type 75 Volume Boosters
Stock # Series Pipe Size (NPT) Adjustment Range (PSI) Max Flow Capacity (SCFM) Max Inlet Pressure (PSI)
961-058-000 T75 1/4 0-150 40 250
961-066-000 T75 3/8 0-150 40 250
961-061-000 T75 1/2 0-150 40 250
961-146-000 T75HR 1/2 0-150 40 250
Type 79 High Flow Volume Boosters
Stock # Series Pipe Size (NPT) Adjustment Range (PSI) Max Flow Capacity (SCFM) Max Inlet Pressure (PSI)
961-157-000 T79 1/2 0-200 125 400
961-158-000 T79 3/4 0-200 125 400
961-159-000 T79 1 0-200 125 400