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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
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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