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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
show more
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
41 models matching criteria
20822
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:2 Ratio, 1/4" NPT
23 In Stock
$312.53USD
$8.01 Shipping
20813
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:1 Ratio, 3/8" NPT
21 In Stock
$282.08USD
$8.01 Shipping
20812
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:1 Ratio, 1/4" NPT
5 In Stock
$277.27USD
$8.01 Shipping
20813I
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:1 Ratio, 3/8" NPT, By-Pass Valve
4 In Stock
$354.20USD
$8.01 Shipping
20863
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:4 Ratio, 3/8" NPT
3 In Stock
$413.50USD
$8.01 Shipping
20812E
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:1 Ratio, 1/4" NPT, Tapped Exhaust
2 In Stock
$440.74USD
$8.01 Shipping
20832
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:3 Ratio, 1/4" NPT
1 In Stock
$312.53USD
$8.01 Shipping
20833
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:3 Ratio, 3/8" NPT
8 - 12 days
$312.53USD
$8.01 Shipping
20843
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 2:1 Ratio, 3/8" NPT
8 - 12 days
$312.53USD
$8.01 Shipping
20852
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 3:1 Ratio, 1/4" NPT
8 - 12 days
$312.53USD
$8.01 Shipping

Specifications

Ambient Temperature Range

  • -40° to 93° C (-40° to 200° F)

BSP Connection

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

Elastomers

  • FluoroCarbon (Viton)
  • Nitrile on Dacron
  • Silicone

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

  • 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

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)

NPT Connection

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

Output Pressure - Maximum

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

Ratio

  • 0.042361111111
  • 0.043055555556
  • 0.04375
  • 0.044444444444
  • 0.045138888889
  • 0.045833333333
  • 0.084027777778
  • 0.12569444444
  • 0.16736111111
  • 0.20902777778

Relief

  • Non-Relieving
  • Relieving

Sensitivity

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

Supply Pressure - Maximum

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

Supply Pressure Effect

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

Trim Material

  • Brass
  • Zinc-Plated Steel

Vent

  • Straight
  • Tapped Exhaust