Air Relay and Volume Boosters

High-Performance Air Handling for Demanding Pneumatic Systems

Bellofram Precision Controls offers a versatile line of air relays and volume boosters engineered to deliver rapid, precise pneumatic signal amplification and control. Designed to maintain signal integrity across long runs or in high-flow systems, our products ensure fast response times and stable operation—ideal for valve actuation, positioners, and process control environments.

With a reputation built on consistency and engineering excellence, Bellofram air relays and boosters are trusted in industries where speed, accuracy, and reliability are critical.

Why Choose Bellofram Air Relays & Boosters?

• High Flow Capacity: Rapidly amplifies low-volume control signals to actuate larger pneumatic devices.

• Low Deadband Design: Delivers accurate, responsive output with minimal pressure deviation.

• Stable Output Pressure: Maintains control signal integrity even under fluctuating demand or backpressure.

• Flexible Mounting: Compact designs for inline or panel mounting in tight or complex layouts.

Key Features:

• Signal-to-Supply Isolation: Prevents feedback or disruption in sensitive control loops.

• Fail-Safe Options: Available models vent upon signal loss for system safety.

• Precision Diaphragm Technology: Enables repeatable output with minimal hysteresis.

• Compatible with I/P Transducers & Positioners: Perfect for high-speed response systems requiring stable feedback.