4516A Fairchild Products Model 4500A Pneumatic Volume Booster 1:1 ratio

$437.77 / Each
In Stock
  • Product Type: Pneumatic Volume Booster
  • Accuracy: 0.50 psi
  • Sensitivity: 1 in WC
  • Supply Pressure: 250 psi
  • Pressure Range: 0-150 psi
  • Flow Capacity: 150 SCFM
  • Pipe Size: 3/4 FPT
  • Body Material: Aluminum
  • Elastomer: Nitrile on Dacron
  • Ambient Temperature: -40 F (-40 C) to 200 F (93.3 C)
  • Base Model: 4516A
  • Exhaust Capacity: 40 SCFM [65.2m3/Hr] where downstream pressure is 5 psi above 20 psi setpoint
  • Exhaust Type: Straight (standard)
  • FlowCv: 3
  • Mounting: Wall (order 20555-1 bracket below)
  • Operator: Pneumatic pilot signal
  • Options: None
  • Ratio: 1:1
  • RatioAccuracy: 3.0 pct of 100 psi output span
  • Flow Capacity: 150 SCFM (255 M³/HR)
  • Max. Output Pressure: 150 PSIG
  • Max. Supply Pressure: 250 PSIG
  • Signal to Output Pressure Ratio: 1:1

Fairchild Model 4500A Pneumatic Volume Booster, 1:1 ratio, 250 psi [17 BAR] supply, 150 SCFM [255m3/Hr]@100 psi supply/20 psi set, 150 psi [10 BAR] output, 3/4 FPT line & signal, 1/4 FPT gauge, Nitrile on Dacron.

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Product Description


The Rotork Fairchild Model 4500 Model 4500 Pneumatic Volume Booster is popular due to rugged design and high flow capacity in an economical package. With its pilot operated regulator design, the M4500 handles up 250 psig [17 BAR] (1700 kPa) supply pressure and has five available signal to output ratios to meet most control element requirements. The 4500 Booster provides a flow capacity of 150 SCFM [255m3/Hr], which equates to a Cv factor of approximately 3.0 in both forward and exhaust modes.
  • Extremely fast and responsive operation
  • Versatility to meet most control element requirements
  • Allows use in precision applications
  • Minimizes air consumption
  • Isolates the diaphragm from the main flow to eliminate hunting and buzzing
  • Minimizes pressure drop at final control element under flow conditions
  • Allows tuning for optimum dynamic response (1:1 ratio only) and cycle free operation with valve positioners
  • Eliminates any hunting and buzzing
  • Certification for use in all Canadian territories and provinces
NOTES: Oil free air must be applied to the regulator. Use a filter to remove dirt and entrained liquid in the air line ahead of the regulator. If an air line lubricator is used, it MUST be located downstream of the regulator, to avoid interference with regulator performance.

Dimension Drawing