Aluminum Pneumatic Relays and Volume Boosters

16 Results
Air Volume Booster -- PSR
from Proportion-Air, Inc.

The PSR has a control pressure up to 200 psig. [See More]

  • Material: Aluminum; Zinc
  • Maximum Pressure: 300
  • Type: Volume Booster
  • Flow Capacity: 700
High Flow Capacity Volume Booster -- Type 6100
from ControlAir LLC

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 used to increase throttling speed of. large volume valve actuators. They are suitable for. either diaphragm or... [See More]

  • Material: Aluminum
  • Output Pressure: 150
  • Type: Volume Booster
  • Maximum Pressure: 250
Amplifying and Reducing Relays -- Model 66
from Siemens Process Instrumentation

The Model 66 Amplifying and Reducing Relays are used to increase or decrease control-circuit pressure signals. [See More]

  • Material: Aluminum; Stainless Steel
  • Maximum Pressure: 80
  • Type: Electric / Pneumatic Relay
Air Volume Booster -- PSR-02
from Proportion-Air, Inc.

The PSR-02 has a relief flow up to 12 SCFM. [See More]

  • Material: Aluminum; Zinc
  • Maximum Pressure: 300
  • Type: Volume Booster
  • Flow Capacity: 700
Large Flow Capacity Volume Booster -- Type 6000SS
from ControlAir LLC

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 input signal change to the volume booster delivers high volume, fast action throttling control. An integral bypass... [See More]

  • Material: Aluminum; Stainless Steel
  • Output Pressure: 150
  • Type: Volume Booster
  • Maximum Pressure: 150
Amplifying Relays with Bias -- Model 661
from Siemens Process Instrumentation

Series 661 Amplifying Relays are fixed-gain force-balance instruments, which incorporate bias adjustment that amplify pneumatic instrument signals. [See More]

  • Material: Aluminum; Stainless Steel
  • Maximum Pressure: 80
  • Type: Electric / Pneumatic Relay
Air Volume Booster -- R-Series
from Proportion-Air, Inc.

Modified spring for low pressure control is available. [See More]

  • Material: Aluminum; Zinc
  • Maximum Pressure: 300
  • Type: Volume Booster
  • Flow Capacity: 2000
Large Flow Capacity Volume Booster -- Type 6500
from ControlAir LLC

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 applications that require high flow capacity. Typically they are used to increase throttling speed of... [See More]

  • Material: Aluminum
  • Output Pressure: 150
  • Type: Volume Booster
  • Maximum Pressure: 250
Constant-DifferentialRelays -- Series 62
from Siemens Process Instrumentation

Series 62 Constant-Differential Relays serve as air-flow controllers maintaining a constant air purge for each setting of an integral needle valve. [See More]

  • Material: Aluminum; Stainless Steel
  • Output Pressure: 150
  • Type: Electric / Pneumatic Relay
  • Maximum Pressure: 200
Electro-Pneumatic Pressure Control Valve -- QB3
from Proportion-Air, Inc.

The QB3 is a complete electronic pressure regulator package consisting of two feed and bleed solenoid valves, a control circuit, a pressure transducer, an integral air pilot operated volume booster, and a rugged IP65 housing. The pressure transducer is connected directly to the control pressure so... [See More]

  • Material: Aluminum
  • Maximum Pressure: 150
  • Type: Volume Booster
  • Flow Capacity: 40
Lock-Up Air Relay -- Type 250
from ControlAir LLC

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 position is maintained by capturing air pressure inside the diaphragm chamber (or piston cylinder) of the actuator,... [See More]

  • Material: Aluminum; Stainless Steel
  • Set Point Pressure: 15 to 120
  • Type: Air Lock Relay
  • Maximum Pressure: 125
High Flow Control Valve -- QB4
from Proportion-Air, Inc.

The QB4 closed loop electronic pressure regulator can handle flow rates as high as 200 scfm forward flow and 300 scfm exhaust flow. It works with pressures from vacuum to 150 psig. The unit is made up of two solenoid valves, an internal pressure transducer and an electronic control circuit mounted... [See More]

  • Material: Aluminum
  • Maximum Pressure: 150
  • Type: Volume Booster
  • Flow Capacity: 200 to 300
Positive Bias Relay -- Type 650
from ControlAir LLC

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 allows flow capacity ties up to 50 SCFM with minimal pressure drop. An aspirator tube at the output maintains the set pressure... [See More]

  • Material: Aluminum
  • Output Pressure: 15 to 150
  • Type: Bias Relay
  • Maximum Pressure: 250
Pressure Control Device -- DQB3
from Proportion-Air, Inc.

The DQB3 is a complete electronic pressure control valve package consisting of two feed and bleed solenoid valves, a control circuit, a pressure transducer, an integral air pilot operated volume booster, and a rugged IP65 housing. The pressure transducer is connected directly to the control pressure... [See More]

  • Material: Aluminum
  • Maximum Pressure: 150
  • Type: Volume Booster
  • Flow Capacity: 40
Snap-Acting Pneumatic Relay -- Mite 70
from ControlAir LLC

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. The tripped position is then held indefinitely until the control signal is restored and a manual reset button is pushed. The trip point is... [See More]

  • Material: Aluminum; Stainless Steel
  • Set Point Pressure: 1 to 100
  • Type: Snap Acting Relay
  • Maximum Pressure: 100
Snap-Acting Pneumatic Relay -- MITE 85
from ControlAir LLC

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" port to "H". A decreasing signal pressure that drops below the low trip point will vent port "H". This switching action is... [See More]

  • Material: Aluminum; Stainless Steel
  • Maximum Pressure: 120
  • Type: Snap Acting Relay
  • Port Size: 0.1250 to 0.2500