ControlAir LLC Datasheets for Pneumatic Relays and Volume Boosters

Pneumatic relays and volume boosters control output air flow and pressure in response to a pneumatic input signal.  They can perform simple functions such as boosting or scaling the output, or use complex reversal, biasing, and math function operators.
Pneumatic Relays and Volume Boosters: Learn more

Product Name Notes
Large Flow Capacity Volume Booster -- Type 6500
Large Flow Capacity Volume Booster -- Type 6600
Rapid Stroke Capability in a Rugged Aluminum or Stainless Steel Casing The Type-6500 aluminum and Type-6600 stainless steel volume boosters are 1:1 signal to output relays that are utilized in...
Snap-Acting Pneumatic Relay -- Mite 70 Set to trip on either an increasing or decreasing control signal, the Mite 70 will vent one port to atmosphere while it locks up the pressure in a second line.
Lock-Up Air Relay -- Type 250 The ControlAir Type 250 Lockup Air Relay is a reliable unit for fail in place applications of control valves when air supply drops below acceptable pressure levels. Valve or damper...
High Flow Capacity Volume Booster -- Type 6100 The ControlAir Type 6100 aluminum volume booster is a 1:1 signal to output relay that is utilized in applications that require high forward flow and exhaust capacities. Typically they are...
Snap-Acting Pneumatic Relay -- Super Mite 74 The Mite 74 combines the Mite 70 control relay with a precision 2-way or 3-way valve in a single compact package. Either an increasing, decreasing or remote signal can be...
Snap-Acting Pneumatic Relay -- MITE 85 The Mite 85 allows you to establish two adjustable trip points that control flow through a 3-way valve. An increasing signal that exceeds the high trip point will open "I"...
Snap-Acting Pneumatic Relay -- Super Mite 71 The Super Mite 71 will automatically select the higher or lower of two pneumatic inputs and pass it downstream while blocking the other. Capable of almost instantaneous selection, the Super...
Precision Air Relay -- Type 200 The Type 200 Precision Air Relay is a pilot operated, multi-stage 1:1 relay with a positive and negative bias adjustment capability. It accurately reproduces a signal pressure plus or minus...
Large Flow Capacity Volume Booster -- Type 6000SS
Volume Booster -- Type 6000
The Type 6000 Volume Booster is a one-to-one signal to output relay that, when used with a positioner/actuator, is designed to increase the stroking speed of control valves. A large...
Volume Booster -- Type 600 The Type-600 ratio relay volume booster is designed to use a pneumatic signal to produce an output pressure which has high flow capacity and can be amplified. This unit is...
Positive Bias Relay -- Type 650 The Type-650 positive bias relay is a signal operated regulator that provides an output pressure that is the sum of the input signal pressure plus a preset bias. The unit...