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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
Displaying prices & availability for Ohio, United States 43201 in USD. Change location.
Models matching criteria: 6
- Ratio - 1:1
- Port Size - 3/8" NPT
- Port Thread - NPT
- Elastomers - Fluorocarbon (Viton)
- Relief - Relieving
- Output Options - None
- Increased Adjustability - None
- Exhaust Port - Tapped Exhaust
6 In Stock
$568.85 USD / each
$26.00 Shipping
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:6 Ratio, 1/4" NPT view more
- Ratio: 1:6
- Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
- Pipe Size: 1/4" NPT
- Pipe Thread: NPT
- 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
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:1 Ratio, 1/4" NPT view more
- Ratio: 1:1
- Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
- Pipe Size: 1/4" NPT
- Pipe Thread: NPT
- 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
$262.75 USD / each
$26.00 Shipping
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:1 Ratio, 3/8" NPT view more
- Ratio: 1:1
- Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
- Pipe Size: 3/8" NPT
- Pipe Thread: NPT
- Ambient Temperature: -40°F to +200° (-40°C to +93.3°C)
- Material of Construction:
- Body & Housing: Aluminium
- Trim: Zinc Plated Steel, Brass
- Diaphragms: Nitrile on Dacron Fabric
Out of Stock
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:3 Ratio, 1/4" NPT view more
- Ratio: 1:3
- Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
- Pipe Size: 1/4" NPT
- Pipe Thread: NPT
- Ambient Temperature: -40°F to +200°F (-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
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:2 Ratio, 1/4" NPT view more
- Ratio: 1:2
- Supply Pressure (Maximum): 250 psig, 17 bar, 1700 kPa
- Pipe Size: 1/4" NPT
- Pipe Thread: NPT
- Ambient Temperature: -40°F to +200°F (-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
Specifications
Ratio
- 1:1
- 1:2
- 1:3
- 1:4
- 1:5
- 1:6
- 2:1
- 3:1
- 4:1
- 5:1
Pipe/Port Size
- 1/4"
- 3/8"
Pipe/Port Thread Type
- NPT
- BSPP
- BSPT
Approvals
- CRN
Hazardous Areas
- Acceptable in Zones 1–2 (gas, Groups IIA & IIB) and Zones 21–22 (dust).
Max. Supply Pressure
- 250 psig : 17.0 bar : 1700 kPa
Max. Output Pressure
- 30 psig : 2.0 bar : 200 kPa
- 37.5 psig : 2.6 bar : 260 kPa
- 50 psig : 3.5 bar : 350 kPa
- 75 psig : 5.0 bar : 500 kPa
- 150 psig : 10.0 bar : 1000 kPa
Flow Capacity
- 45 scfm (76.5 m³/hr) @ 100 psig : 7.0 bar : 700 kPa supply & 20 psig : 1.5 bar : 150 kPa output.
Supply Pressure Effect
- 0.1 psig : 0.007 bar : 0.7 kPa for change of 100 psig : 7.0 bar : 700 kPa.
- 0.2 psig : 0.014 bar : 1.4 kPa for change of 100 psig : 7.0 bar : 700 kPa.
- 0.3 psig : 0.021 bar : 2.1 kPa for change of 100 psig : 7.0 bar : 700 kPa.
- 0.4 psig : 0.028 bar : 2.8 kPa for change of 100 psig : 7.0 bar : 700 kPa.
- 0.5 psig : 0.034 bar : 3.4 kPa for change of 100 psig : 7.0 bar : 700 kPa.
- 0.6 psig : 0.041 bar : 4.1 kPa for change of 100 psig : 7.0 bar : 700 kPa.
Exhaust Capacity
- 7.5 scfm (12.8 m³/hr) where downstream pressure is 5 psig : 0.35 bar : 35 kPa above output pressure set point of 20 psig : 1.5 bar : 150 kPa.
- 11 scfm (18.7 m³/hr) where downstream pressure is 5 psig : 0.35 bar : 35 kPa above setpoint.
Sensitivity
- 1/4" (0.63 cm) W.C.
- 1/2” (1.27 cm) W.C.
- 3/4” (1.9 cm) W.C.
- 1” (2.50 cm) W.C.
- 1-1/4” (3.18 cm) W.C.
- 1-1/2” (3.8 cm) W.C.
Bypass Valve
- Bypass Valve
Ambient Temperature Limits
- -40° F to +200° F (-40° C to 93.3° C)
Relief
- Non-Relieving
Tapped Exhaust Vent
- Tapped
Body & Housing Material
- Aluminum
Elastomers Material
- Silicone
- Viton (Fluorocarbon)
Diaphragm Material
- Nitrile on Dacron
Trim Material
- Brass, Zinc-Plated Steel
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