Aluminum Pneumatic Relays and Volume Boosters

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
Pneumatic Relays -- Model 62
from Siemens Process Instrumentation

The Series 62 Constant-Differential Relays serve as air-flow controllers maintaining a constant air purge for ech setting of an integral needle valve. By maintaining a constant-differential pressure drop across a built-in needle valve (for any flow setting up to 2.1 cu. ft. of air per hour). Series... [See More]

  • Material: Aluminum; Stainless Steel
  • Maximum Pressure: 150
  • Type: Ratio Relay
150 SCFM [255 m3/Hr] Forward/Exhaust High Flow No Bleed Volume Booster -- M4500A
from Rotork plc

Features. Flow capacity of 150 SCFM (255 m3/HR). Five signal to output ratios. Control sensitivity of 1" water column. Soft Supply and Exhaust Valve seats. Separate Control Chamber. Optional remote feedback port. Optional Adjustable By-Pass Needle Valve (includes bubble tight exhaust valve). [See More]

  • Material: Aluminum
  • Output Pressure: 50 to 150
  • Type: Volume Booster
  • Maximum Pressure: 250
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
1800 SCFM [3058 m3/Hr] Forward Ultra High Flow Volume Booster -- M200
from Rotork plc

Features. Forward flow capacity of 1800 SCFM (3058 m3/HR). Control sensitivity to 1" water column. Separate Control Chamber. Optional Increased Sensitivity configuration with larger Control Diaphragm. Unit construction. Mounting Bracket available. Benefits. Ultra fast responsive operation. Allows... [See More]

  • Material: Aluminum
  • Output Pressure: 150
  • Type: Volume Booster
  • Maximum Pressure: 250
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
1800 SCFM [3058 m3/Hr] Forward/Exhaust Ultra High Flow Volume Booster -- M200XLR
from Rotork plc

Features. Forward and exhaust flow capacity of 1800 SCFM (3058 m3/HR). Control sensitivity to 1" water column. Increased Sensitivity ("L") option. Separate Control Chamber. Optional Adjustable By-Pass Needle Valve (includes bubble tight exhaust valve). Benefits. Ultra fast responsive operation. [See More]

  • Material: Aluminum
  • Output Pressure: 150
  • Type: Volume Booster
  • Maximum Pressure: 250
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
45 SCFM [76.5 m3/Hr] Forward/Exhaust Flow Volume Booster -- M20
from Rotork plc

Features. Flow capacity of 45 SCFM (76.5 m3/HR). Ten available pressure ratios. Optional Adjustable By-Pass Needle Valve option includes bubble tight exhaust valve. Optional Fixed Negative Bias. A separate Control Chamber isolates the diaphragm from the main flow. Unit construction. Mounting Bracket... [See More]

  • Material: Aluminum
  • Output Pressure: 30 to 150
  • Type: Volume Booster
  • Maximum Pressure: 250
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
500 SCFM [850 m3/HR] Forward/Exhaust High Flow No Bleed Volume Booste -- M4900A
from Rotork plc

Features. Cv = 9; Flow capacity of 500 SCFM (850 m3/HR). Ratio Accuracy of 0.5%. Very low dead band between the operation of the supply valve and exhaust valve. High capacity exhaust valve. Large area diaphragms. Soft seat supply and exhaust valves. Pressure balanced supply valve. Damped diaphragm... [See More]

  • Material: Aluminum
  • Output Pressure: 150
  • Type: Volume Booster
  • Maximum Pressure: 250
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
500 SCFM [850 m3/HR] Forward/Exhaust High Flow No Bleed Volume Booster with Bypass Valve -- M4800A
from Rotork plc

Features. Cv = 9; Flow capacity of 500 SCFM (850 m3/HR). Ratio Accuracy of 0.5%. Fixed dead band between the operation of the supply valve and exhaust valve. Integral bypass needle valve. Soft seat supply and exhaust valves. Pressure balanced supply valve. Damped diaphragm control chamber. Two... [See More]

  • Material: Aluminum
  • Output Pressure: 150
  • Type: Volume Booster
  • Maximum Pressure: 250
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
Adjustable Ration Relay -- M21
from Rotork plc

Features. Adjustable from 30:1 dividing ratio to 1:30 multiplying ratio. Venturi aspiration system. Optional input and output biasing. Floating seal ring isolates control chamber. Panel or Line Mounting. Benefits. Assures infinite pressure adjustments. Compensates for downstream pressure losses. [See More]

  • Material: Aluminum
  • Output Pressure: 150
  • Type: Electric / Pneumatic Relay
  • Maximum Pressure: 250
Snap-Acting Pneumatic Relay -- Super Mite 71
from ControlAir LLC

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 Mite 71 can separate pressure differentials as low as a tenth of a psi. Although ordered as either high or low... [See More]

  • Material: Aluminum; Stainless Steel
  • Maximum Pressure: 100
  • Type: Snap Acting Relay
  • Port Size: 0.1250 to 0.2500
Back Pressure Pneumatic Booster -- M20BP
from Rotork plc

Features. Flow capacity of 45 SCFM (76.5 m3/HR. Aspirator tube design. A separate Control Chamber isolates the diaphragm from the main flow. Unit construction. Mounting Bracket available. Benefits. Fast responsive operation. Compensates downstream pressure droop under flow conditions. Eliminates... [See More]

  • Material: Aluminum
  • Output Pressure: 150
  • Type: Volume Booster
  • Maximum Pressure: 250
Snap-Acting Pneumatic Relay -- Super Mite 74
from ControlAir LLC

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 used to channel air as needed. The Mite 74 can also be used in combination with either of the Super Mite 71's so that it will... [See More]

  • Material: Aluminum; Stainless Steel
  • Maximum Pressure: 100
  • Type: Snap Acting Relay
  • Port Size: 0.1250 to 0.2500
Back Pressure Pneumatic Booster -- M4500ABP
from Rotork plc

Features. Flow capacity of 150 SCFM (255 m3/HR). Control sensitivity of 1" water column. Large Exhaust Valve design. Separate Control Chamber. Aspirator Tube design. Unitized Construction. Benefits. Extremely fast and responsive operation. Allows for use in High precision applications. Provides High... [See More]

  • Material: Aluminum
  • Output Pressure: 50
  • Type: Volume Booster
  • Maximum Pressure: 250
Volume Booster -- Type 6000
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
Computing Relay -- M22
from Rotork plc

Features. Small bleed across relief seat. Multiple inputs available. Adjustable Bias Range from -18 to +15 psig. Two gauge ports located 90deg from supply and outlet ports. Line or Panel Mounting. Benefits. Assures fast response to even very small signals. Allows versatility in process control... [See More]

  • Material: Aluminum
  • Output Pressure: 50
  • Type: Electric / Pneumatic Relay
  • Maximum Pressure: 150
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
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
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
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
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
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