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Model 4500ABP Pneumatic Back Pressure Booster

Brand: Fairchild Industrial Products
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Rotork Fairchild’s M4500ABP is a High Flow Back Pressure Booster designed for automated or remote controlling of the back pressure or relief operation typically found in tank systems and other pressurized systems.

In its pilot operated design, the M4500ABP will operate from a signal pressure of up to 150 psig [10.0 BAR] (1,000 kPa) and handles up 250 psig, [17.0 BAR], (1,700 kPa) system pressure.

The Fairchild Model 4500ABP Back Pressure Booster provides a flow capacity of 150 SCFM (255 m3/HR), which equates to a Cv factor of approximately 3.0.
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
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Rotork Fairchild’s M4500ABP is a High Flow Back Pressure Booster designed for automated or remote controlling of the back pressure or relief operation typically found in tank systems and other pressurized systems.

In its pilot operated design, the M4500ABP will operate from a signal pressure of up to 150 psig [10.0 BAR] (1,000 kPa) and handles up 250 psig, [17.0 BAR], (1,700 kPa) system pressure.

The Fairchild Model 4500ABP Back Pressure Booster provides a flow capacity of 150 SCFM (255 m3/HR), which equates to a Cv factor of approximately 3.0.
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
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Specifications

Brand

Actuator Type

  • Knob
  • Tamper-Proof

Ambient Temperature Range

  • -40° to 93.3° C (-40° to 200° F)

BSP Connection

  • 1/2” BSPP Female
  • 1/2” BSPT Female
  • 3/4” BSPP Female
  • 3/4” BSPT Female
  • 3/8” BSPP Female
  • 3/8” BSPT Female

Diaphragm Material

  • Nitrile on Dacron

Elastomers

  • Viton (Fluorocarbon)

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

Flow Capacity

  • 150 scfm (255 m³/hour) at psig: 100 (kPa: 700, bar: 7) System Pressure

Mounting

  • Bracket

NPT Connection

  • 1/2” NPT Female
  • 3/4” NPT Female
  • 3/8” NPT Female

Ratio

  • 1:1

Ratio Accuracy

  • 3.0 % at psig:100 (kPa:700, bar:7) Input Span

Sensitivity

  • 1” WC (2.54 cm)

Signal or Output Pressure - Maximum

  • psig: 150 (kPa: 1,000, bar: 10)

Supply Pressure - Maximum

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

Trim Material

  • Brass
  • Zinc-Plated Steel
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