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Model 20 Pneumatic Precision Volume Booster

Brand: Fairchild Industrial Products
The Rotork Fairchild Model 20 Volume Booster is a smaller pneumatic device capable of high flow and exhaust capacity.

This device uses a force balance system to control the movement of the supply and exhaust valves.

As a pilot operated regulator design, the M20 handles up to 150 psig, [10.0 BAR], (1,000 kPa) supply pressure and has ten available ratios to cover a wide range of applications.

The M20 Booster provides a flow capacity of 45 SCFM (76.5 m3/HR), which equates to a Cv factor of approximately 1.0 in forward mode.

Typical Part Numbers are 20812, 20822, 20832, 20842, 20852, 20862, 20813, 20823, 20833, 20843, 20853, 20863
Features
  • Flow capacity of 45 SCFM (76.5 m3/HR)
  • Ten available pressure ratios
  • Optional Adjustable By-Pass Needle Valve option includes bubble tight exhaust valve
  • Optional Fixed Negative Bias
  • A separate Control Chamber isolates the diaphragm from the main flow
  • Unit construction
  • Mounting Bracket available
  • Canadian Registration Number (CRN) Certification
The Rotork Fairchild Model 20 Volume Booster is a smaller pneumatic device capable of high flow and exhaust capacity.

This device uses a force balance system to control the movement of the supply and exhaust valves.

As a pilot operated regulator design, the M20 handles up to 150 psig, [10.0 BAR], (1,000 kPa) supply pressure and has ten available ratios to cover a wide range of applications.

The M20 Booster provides a flow capacity of 45 SCFM (76.5 m3/HR), which equates to a Cv factor of approximately 1.0 in forward mode.

Typical Part Numbers are 20812, 20822, 20832, 20842, 20852, 20862, 20813, 20823, 20833, 20843, 20853, 20863
Features
  • Flow capacity of 45 SCFM (76.5 m3/HR)
  • Ten available pressure ratios
  • Optional Adjustable By-Pass Needle Valve option includes bubble tight exhaust valve
  • Optional Fixed Negative Bias
  • A separate Control Chamber isolates the diaphragm from the main flow
  • Unit construction
  • Mounting Bracket available
  • Canadian Registration Number (CRN) Certification
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Displaying prices & availability for Ohio, United States 43201 in USD. Change location or currency.

Models matching criteria: 7
20812E
FAIRCHILD Model 20 Pneumatic Precision Volume Booster, 1/4" NPT, 1:1 Ratio view more
  • 208: Model 20 Pneumatic Precision Booster
  • 1: Ratio 1:1
  • 2: Pipe Size: 1/4" NPT
  • E: Tapped Exhaust
  • Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
  • Ambient Temperature: -40°F to +200° (-40°C to +93.3°C)
  • Material of Construction
    • Body & Housing: Aluminum
    • Trim: Zinc Plated Steel, Brass
    • Diaphragms: Nitrile on Dacron Fabric
5 In Stock
$512.39 USD
20813
FAIRCHILD Model 20 Pneumatic Precision Volume Booster, 3/8" NPT, 1:1 Ratio view more
  • 208: Model 20 Pneumatic Precision Booster
  • 1: Ratio 1:1
  • 3: Pipe Size: 3/8" NPT
  • Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
  • Ambient Temperature: -40°F to +200° (-40°C to +93.3°C)
  • Material of Construction
    • Body & Housing: Aluminum
    • Trim: Zinc Plated Steel, Brass
    • Diaphragms: Nitrile on Dacron Fabric
2 In Stock
$331.38 USD
19513-12
FAIRCHILD Service Kit, Model 20, 1:2 Ratio view more
  • Service Kit: Model 20 Volume Booster, 1:2 Ratio models
  • Includes replacement for
    • Inner Valve Assembly
    • Screen
    • Seat Ring Assembly
    • Seal Plate Assembly
  • Includes installation manual
1 In Stock
$307.29 USD
20812
FAIRCHILD Model 20 Pneumatic Precision Volume Booster, 1/4" NPT, 1:1 Ratio view more
  • 208: Model 20 Pneumatic Precision Booster
  • 1: Ratio 1:1
  • 2: Pipe Size: 1/4" NPT
  • Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
  • Ambient Temperature: -40°F to +200° (-40°C to +93.3°C)
  • Material of Construction
    • Body & Housing: Aluminum
    • Trim: Zinc Plated Steel, Brass
    • Diaphragms: Nitrile on Dacron Fabric
1 In Stock
$322.62 USD
20863
FAIRCHILD Model 20 Pneumatic Precision Volume Booster, 3/8" NPT, 1:4 Ratio view more
  • 208: Model 20 Pneumatic Precision Booster
  • 6: Ratio 1:4
  • 3: Pipe Size: 3/8" NPT
  • Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
  • Ambient Temperature: -40°F to +200° (-40°C to +93.3°C)
  • Material of Construction
    • Body & Housing: Aluminum
    • Trim: Zinc Plated Steel, Brass
    • Diaphragms: Nitrile on Dacron Fabric
1 In Stock
$486.12 USD
20822
FAIRCHILD Model 20 Pneumatic Precision Volume Booster, 1/4" NPT, 1:2 Ratio view more
  • 208: Model 20 Pneumatic Precision Booster
  • 2: Ratio 1:2
  • 2: Pipe Size: 1/4" NPT
  • Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
  • Ambient Temperature: -40°F to +200° (-40°C to +93.3°C)
  • Material of Construction
    • Body & Housing: Aluminum
    • Trim: Zinc Plated Steel, Brass
    • Diaphragms: Nitrile on Dacron Fabric
Out of Stock
$351.08 USD
20822DE
FAIRCHILD Model 20 Pneumatic Precision Volume Booster, 1/4" NPT, 1:2 Ratio, No Bleed, Tapped Vent view more
  • 208: Model 20 Pneumatic Precision Booster
  • 2: Ratio 1:2
  • 2: Pipe Size: 1/4" NPT
  • D: No Bleed Relieving
  • E: Tapped Exhaust
  • Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
  • Ambient Temperature: -40°F to +200° (-40°C to +93.3°C)
  • Material of Construction
    • Body & Housing: Aluminum
    • Trim: Zinc Plated Steel, Brass
    • Diaphragms: Nitrile on Dacron Fabric
6 - 8 weeks
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Specifications

Brand

BSP Connection

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

Vent

  • Straight
  • Tapped Exhaust

Trim Material

  • Brass
  • Zinc-Plated Steel

Ratio

  • 1:1
  • 1:2
  • 1:3
  • 1:4
  • 1:5
  • 1:6
  • 2:1
  • 3:1
  • 4:1
  • 5:1

Sensitivity

  • 1 inH₂O (2.54 cm)
  • 1/2 inH₂O (1.27 cm)
  • 1/4 inH₂O (0.64 cm)
  • 1-1/2 inH₂O (3.8 cm)
  • 1-1/4 inH₂O (3.18 cm)
  • 3/4 inH₂O (1.9 cm)

Flow Capacity

  • 45 scfm
  • 45 scfm (76.5 m³/hour) at psig: 100 (bar: 7, kPa: 700) Supply, psig: 20 (bar: 1.5, kPa: 150) Output
  • 76.5 m³/hour (30)

Ambient Temperature Range

  • -40° to 93° C (-40° to 200° F)

Environmental Protection

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

Output Pressure - Maximum

  • bar: 10
  • kPa: 1,000
  • psig: 150

Supply Pressure Effect

  • bar: 0.007 to 0.041
  • kPa: 0.7 to 4.1
  • psig: 0.1 to 0.7

Enclosure, Body Material

  • Aluminum

Relief

  • Non-Relieving
  • Relieving

Elastomers

  • Fluorocarbon (Viton)
  • Nitrile on Dacron
  • Silicone

NPT Connection

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

Supply Pressure - Maximum

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

Exhaust Capacity - Relieving Units Only

  • 11 scfm (18.7 m³/hour)
  • 12.8 to 18.7 m³/hour
  • 7.5 scfm (12.8 m³/hour) where Downstream Pressure is psig: 5 (bar: 0.35, kPa: 35) Above Output Pressure Set Point of psig: 20 (bar: 1.5, kPa: 150)
  • 7.5 to 11 scfm
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