Model 20BP Back Pressure Pneumatic Booster

Brand: Fairchild Industrial Products
The Rotork Fairchild Model 20BP is a smaller Back Pressure Pneumatic 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 M20BP 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 20BP Back Pressure Booster provides a flow capacity of 45 SCFM (76.5 m3/Hr), which equates to a Cv factor of approximately 1.0.
Features
  • Flow capacity of 45 SCFM (76.5 m3/Hr)
  • Aspirator tube design
  • A separate Control Chamber isolates the diaphragm from the main flow
  • Unit construction
  • Mounting Bracket available
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Images are representations only.
The Rotork Fairchild Model 20BP is a smaller Back Pressure Pneumatic 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 M20BP 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 20BP Back Pressure Booster provides a flow capacity of 45 SCFM (76.5 m3/Hr), which equates to a Cv factor of approximately 1.0.
Features
  • Flow capacity of 45 SCFM (76.5 m3/Hr)
  • Aspirator tube design
  • A separate Control Chamber isolates the diaphragm from the main flow
  • Unit construction
  • Mounting Bracket available

Model 20BP

Ratio

Fitting and Filters

Elastomers

Connection Type

Specifications

Ambient Temperature Range

  • -40° to 93.3° C (-40° to 200° F)

BSP Connection

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

Diaphragm Material

  • Nitrile on Dacron

Elastomers

  • Silicone
  • 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

  • 60 scfm (102 m³/hour) at psig: 100 (kPa: 700, bar: 7) Supply

Mounting

  • Bracket Kit

NPT Connection

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

Ratio

  • 0.042361111111

Ratio Accuracy

  • 1.0% of psig: 100 (kPa: 700, bar:7) Input Span

Sensitivity

  • 1/4" WC (0.64 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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