4896ANJNS Fairchild Products Model 4800A Pneumatic Volume Booster 1:1 ratio

$1,529.83 / Each
  • Product Type: Pneumatic Volume Booster
  • Accuracy: 0.50 psi
  • Sensitivity: 1.5 psi
  • Supply Pressure: 250 psi
  • Pressure Range: 0-150 psi
  • Flow Capacity: 500 SCFM
  • Pipe Size: 3/4 FPT
  • Body Material: Aluminum
  • Elastomer: Viton on polyester
  • Ambient Temperature: -40 F (-40 C) to 200 F (93.3 C)
  • Base Model: 4896A
  • Exhaust Capacity: 100 SCFM [170m3/Hr] where downstream pressure is 5 psi above 20 psi setpoint
  • Exhaust Type: Straight (standard)
  • ExhaustCv: 7
  • FlowCv: 7
  • Mounting: Wall (order 21363-1 bracket below)
  • Operator: Pneumatic pilot signal
  • Options: [9] Cv 7 [J] Viton [N] no feedback port [S] SS trim
  • Ratio: 1:1
  • RatioAccuracy: 0.5 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 4800A Pneumatic Volume Booster, 1:1 ratio, 250 psi [17 BAR] supply, 500 SCFM [850m3/Hr]@100 psi supply/20 psi set, 150 psi [10 BAR] max output, 3/4 FPT line, 1/4 FPT gau/sig, 3/4 FPT exhaust, Viton, no feedback port.

Browse All Model 4800A Products

Browse All Fairchild Industrial Products Products


Contact Our Process Control Experts

Contact our experts to answer questions or help you with your application needs.


  • Distribution of components services
  • On-site inventory management
  • Factory Automation Services
  • Product expediting
  • Product obsolescence notifications and replacements
  • Kitting and packaging
  • Custom labeling

Product Description

The Rotork Fairchild Model 4800A is a High Flow Pneumatic Volume Booster specifically designed for valve and valve actuation systems. With a Cv of 9 in both forward and exhaust modes, this pilot operated booster provides fast response and accurate control for valve actuation. In addition, the M4800A has an integral bypass valve, for optimum tuning and adjustment, even while in operation, to obtain maximum performance on opening and closing times with minimal overshoot or oscillation. In its pilot operated regulator design, the M4800A handles up 250 psig [17 BAR] (1700 kPa) supply pressure and delivers an output pressure up to 150 psig [10 BAR] (1000kPa). The Fairchild Model 4800A Booster provides a flow capacity of 500 SCFM [850m3/Hr]), which equates to a Cv factor of approximately 9 in both forward and exhaust modes.
  • Fast response for quick valve opening and closing times
  • Highly accurate valve control for your system
  • Provides accurate and stable final positioning of the valve
  • Optimizes response time and stability
  • Provide efficient leak free operation and prevents hunting, especially when used with modern electronic feed & bleed type valve positioners
  • Maintains deadband specification preventing changes in control characteristics when supply pressure changes
  • Protects valves from damaging oscillation under high flow conditions
  • Provide convenient access to the outlet for additional control accessories and pressure monitoring
  • Allows for easy collection of exhaust air or use of a silencer
  • 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