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Instantly add the Model 4800A High Flow Pneumatic Volume Booster and 50,000+ more product series to your store or catalog  
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Fairchild Pneumatic Volume Booster, Model 4800A

Model 4800A High Flow Pneumatic Volume Booster

Brand: Fairchild Industrial Products
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Rotork Fairchild’s M4800A is a High Flow Pneumatic Volume Booster specifically designed for Valve and valve actuation systems.

With its 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, [17.0 BAR], (1,700 kPa) supply pressure and delivers an output pressure up to 150 psig [10.0 BAR] (1,000 kPa).

The Fairchild Model 4800A Booster provides a flow capacity of 500 SCFM (850 m3/HR), which equates to a Cv factor of approximately 9 in both forward and exhaust modes.
Features
  • Cv = 9; Flow capacity of 500 SCFM (850 m3/Hr)
  • Ratio Accuracy of 0.5%
  • Fixed deadband between the operation of the supply valve and exhaust valve
  • Integral bypass needle valve
  • Soft seat supply and exhaust valve
  • Pressure balanced supply valve
  • Damped diaphragm control chamber
  • Two accessory ports connected to the outlet chamber
  • Tapped exhaust port.

1 - 12 of 98 Part Numbers
4856AHJNF
4856AHJNF
  • Flow Capacity - 5 Cv
  • Port Size - 3/4"
  • Port Thread - BSPP
  • Elastomers - Fluorocarbon
  • Feedback Option - No Feedback Port
  • Trim - Zinc-Plated Steel
4856AHJNS
4856AHJNS
  • Flow Capacity - 5 Cv
  • Port Size - 3/4"
  • Port Thread - BSPP
  • Elastomers - Fluorocarbon
  • Feedback Option - No Feedback Port
  • Trim - Stainless Steel
4856AHJPF
4856AHJPF
  • Flow Capacity - 5 Cv
  • Port Size - 3/4"
  • Port Thread - BSPP
  • Elastomers - Fluorocarbon
  • Feedback Option - Feedback Port
  • Trim - Zinc-Plated Steel
4856AHJPS
4856AHJPS
  • Flow Capacity - 5 Cv
  • Port Size - 3/4"
  • Port Thread - BSPP
  • Elastomers - Fluorocarbon
  • Feedback Option - Feedback Port
  • Trim - Stainless Steel
4856AHNNF
4856AHNNF
  • Flow Capacity - 5 Cv
  • Port Size - 3/4"
  • Port Thread - BSPP
  • Elastomers - Nitrile
  • Feedback Option - No Feedback Port
  • Trim - Zinc-Plated Steel
4856AHNNS
4856AHNNS
  • Flow Capacity - 5 Cv
  • Port Size - 3/4"
  • Port Thread - BSPP
  • Elastomers - Nitrile
  • Feedback Option - No Feedback Port
  • Trim - Stainless Steel
4856AHNPF
4856AHNPF
  • Flow Capacity - 5 Cv
  • Port Size - 3/4"
  • Port Thread - BSPP
  • Elastomers - Nitrile
  • Feedback Option - Feedback Port
  • Trim - Zinc-Plated Steel
4856AHNPS
4856AHNPS
  • Flow Capacity - 5 Cv
  • Port Size - 3/4"
  • Port Thread - BSPP
  • Elastomers - Nitrile
  • Feedback Option - Feedback Port
  • Trim - Stainless Steel
4856ANJNF
4856ANJNF
  • Flow Capacity - 5 Cv
  • Port Size - 3/4"
  • Port Thread - Female NPT
  • Elastomers - Fluorocarbon
  • Feedback Option - No Feedback Port
  • Trim - Zinc-Plated Steel
4856ANJNS
4856ANJNS
  • Flow Capacity - 5 Cv
  • Port Size - 3/4"
  • Port Thread - Female NPT
  • Elastomers - Fluorocarbon
  • Feedback Option - No Feedback Port
  • Trim - Stainless Steel
4856ANJPF
4856ANJPF
  • Flow Capacity - 5 Cv
  • Port Size - 3/4"
  • Port Thread - Female NPT
  • Elastomers - Fluorocarbon
  • Feedback Option - Feedback Port
  • Trim - Zinc-Plated Steel
4856ANJPS
4856ANJPS
  • Flow Capacity - 5 Cv
  • Port Size - 3/4"
  • Port Thread - Female NPT
  • Elastomers - Fluorocarbon
  • Feedback Option - Feedback Port
  • Trim - Stainless Steel
1 - 12 of 98 Part Numbers

View_Details

Specifications

Brand

Ambient Temperature Range

  • -40° to 93.3° C (-40° to 200° F)

Approvals & Certifications

  • CRN

BSP Connection

  • 1” BSPP Female
  • 1” BSPT Female
  • 3/4” BSPP Female
  • 3/4” BSPT Female

Diaphragm Material

  • Nitrile on Dacron

Elastomers

  • Fluorocarbon
  • Nitrile

Enclosure, Body Material

  • Aluminum

Environmental Protection

  • Acceptable for use in Zones 1 & 2 for Gas Atmosphere, Groups IIA & IIB & Zones 21 & 22 for Dust Atmospheres

Exhaust Capacity - Relieving Units Only

  • 100 scfm (170 m³/hour)

Flow Capacity

  • 500 scfm (850 m³/hour) at psig: 100 (kPa: 700, bar: 7)

Flow Rate

  • 5.0 Cv
  • 9.0 Cv

Mounting

  • Bracket

NPT Connection

  • 1” NPT Female
  • 3/4” NPT Female

Ratio

  • 1:1

Ratio Accuracy

  • 0.5 % of psi: 100 (kPa: 700, bar: 7) Output Span

Signal or Output Pressure - Maximum

  • psig: 150 (kPa: 1,000, bar: 10)

Supply Pressure - Maximum

  • bar: 17
  • kPa: 1,700
  • psig: 250

Supply Pressure Effect

  • psi: 0.10 (kPa: 0.7, bar: 00.7) for psi: 100 (kPa: 700, bar: 7) Change in Supply Pressure

Trim Material

  • Stainless Steel
  • Zinc-Plated Steel

Documentation

Data Sheets

Installation Instructions

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