Images are representations only.
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 in CAD. Change location.
Featured
- Featured
- Quantity In Stock
- Price
- SKU / Model Number
Models matching criteria: 1,000
- Ratio - 2:1
- Port Size - 1/2" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Nitrile on Dacron
- Relief - Non-Relieving
- Output Options - Negative Bias
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$60.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 1/4" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Fluorocarbon (Viton)
- Relief - Non-Relieving
- Output Options - Negative Bias
- Exhaust Port - Straight
100+ In Stock
$671.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 1/4" NPT
- Port Thread - NPT
- Elastomers - Nitrile on Dacron
- Relief - Non-Relieving
- Output Options - None
- Increased Adjustability - Bypass Valve
- Exhaust Port - Tapped Exhaust
100+ In Stock
$1,322.00 CAD
$10.00 Shipping
- Ratio - 3:1
- Port Size - 1/2" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Fluorocarbon (Viton)
- Relief - Relieving
- Output Options - Negative Bias
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$1,582.00 CAD
$10.00 Shipping
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:1 Ratio, 1/4" NPT, By-Pass Valve 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
- Options: By-Pass Valve
100+ In Stock
$2,056.00 CAD
$10.00 Shipping
- Ratio - 2:1
- Port Size - 3/8" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Fluorocarbon (Viton)
- Relief - Non-Relieving
- Output Options - None
- Increased Adjustability - None
- Exhaust Port - Tapped Exhaust
100+ In Stock
$2,303.00 CAD
$10.00 Shipping
- Ratio - 2:1
- Port Size - 3/8" NPT
- Port Thread - NPT
- Elastomers - Nitrile on Dacron
- Relief - Non-Relieving
- Output Options - Negative Bias
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$2,524.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 1/2" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Silicone
- Relief - Non-Relieving
- Output Options - None
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$179.00 CAD
$10.00 Shipping
- Ratio - 1:2
- Port Size - 3/8" NPT
- Port Thread - NPT
- Elastomers - Nitrile on Dacron
- Relief - Non-Relieving
- Output Options - None
- Exhaust Port - Tapped Exhaust
100+ In Stock
$368.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 1/4" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Fluorocarbon (Viton)
- Relief - Relieving
- Output Options - None
- Increased Adjustability - None
- Exhaust Port - Tapped Exhaust
100+ In Stock
$407.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/8" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Silicone
- Relief - Non-Relieving
- Output Options - None
- Increased Adjustability - Bypass Valve
- Exhaust Port - Tapped Exhaust
100+ In Stock
$1,103.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/8" NPT
- Port Thread - NPT
- Elastomers - Nitrile on Dacron
- Relief - Non-Relieving
- Output Options - None
- Increased Adjustability - Bypass Valve
- Exhaust Port - Tapped Exhaust
100+ In Stock
$2,117.00 CAD
$10.00 Shipping
- Ratio - 2:1
- Port Size - 3/8" NPT
- Port Thread - NPT
- Elastomers - Fluorocarbon (Viton)
- Relief - Relieving
- Output Options - None
- Increased Adjustability - None
- Exhaust Port - Tapped Exhaust
100+ In Stock
$2,340.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 1/4" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Fluorocarbon (Viton)
- Relief - Non-Relieving
- Output Options - Negative Bias
- Exhaust Port - Tapped Exhaust
100+ In Stock
$2,504.00 CAD
$10.00 Shipping
- Ratio - 1:3
- Port Size - 1/2" NPT
- Port Thread - NPT
- Elastomers - Fluorocarbon (Viton)
- Relief - Relieving
- Output Options - None
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$653.00 CAD
$10.00 Shipping
- Ratio - 1:2
- Port Size - 1/2" NPT
- Port Thread - NPT
- Elastomers - Fluorocarbon (Viton)
- Relief - Relieving
- Output Options - None
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$882.00 CAD
$10.00 Shipping
- Ratio - 1:3
- Port Size - 1/4" NPT
- Port Thread - NPT
- Elastomers - Fluorocarbon (Viton)
- Relief - Relieving
- Output Options - Negative Bias
- Increased Adjustability - None
- Exhaust Port - Tapped Exhaust
100+ In Stock
$1,005.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/8" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Silicone
- Relief - Non-Relieving
- Output Options - Negative Bias
- Exhaust Port - Tapped Exhaust
100+ In Stock
$1,142.00 CAD
$10.00 Shipping
- Ratio - 3:1
- Port Size - 1/4" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Fluorocarbon (Viton)
- Relief - Relieving
- Output Options - Negative Bias
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$1,146.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 1/4" NPT
- Port Thread - NPT
- Elastomers - Fluorocarbon (Viton)
- Relief - Relieving
- Output Options - None
- Increased Adjustability - Bypass Valve
- Exhaust Port - Straight
100+ In Stock
$1,477.00 CAD
$10.00 Shipping
- Ratio - 1:2
- Port Size - 1/2" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Nitrile on Dacron
- Relief - Relieving
- Output Options - None
- Increased Adjustability - None
- Exhaust Port - Tapped Exhaust
100+ In Stock
$1,577.00 CAD
$10.00 Shipping
- Ratio - 2:1
- Port Size - 3/8" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Nitrile on Dacron
- Relief - Non-Relieving
- Output Options - Negative Bias
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$1,772.00 CAD
$10.00 Shipping
- Ratio - 1:3
- Port Size - 1/2" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Nitrile on Dacron
- Relief - Relieving
- Output Options - Negative Bias
- Increased Adjustability - None
- Exhaust Port - Tapped Exhaust
100+ In Stock
$1,897.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 3/8" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Silicone
- Relief - Relieving
- Output Options - None
- Increased Adjustability - Bypass Valve
- Exhaust Port - Straight
100+ In Stock
$2,489.00 CAD
$10.00 Shipping
- Ratio - 4:1
- Port Size - 1/2" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Nitrile on Dacron
- Relief - Relieving
- Output Options - None
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$369.00 CAD
$10.00 Shipping
- Ratio - 3:1
- Port Size - 1/2" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Nitrile on Dacron
- Relief - Non-Relieving
- Output Options - Negative Bias
- Increased Adjustability - None
- Exhaust Port - Tapped Exhaust
100+ In Stock
$1,220.00 CAD
$10.00 Shipping
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:1 Ratio, 3/8" NPT, Non-Relieving 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)
- Options:
- Non-Relieving
- Material of Construction:
- Body & Housing: Aluminium
- Trim: Zinc Plated Steel, Brass
- Diaphragms: Nitrile on Dacron Fabric
100+ In Stock
$1,382.00 CAD
$10.00 Shipping
- Ratio - 1:2
- Port Size - 3/8" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Fluorocarbon (Viton)
- Relief - Relieving
- Output Options - None
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$1,872.00 CAD
$10.00 Shipping
- Ratio - 1:2
- Port Size - 3/8" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Nitrile on Dacron
- Relief - Non-Relieving
- Output Options - Negative Bias
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$2,057.00 CAD
$10.00 Shipping
- Ratio - 2:1
- Port Size - 1/2" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Fluorocarbon (Viton)
- Relief - Non-Relieving
- Output Options - Negative Bias
- Increased Adjustability - None
- Exhaust Port - Tapped Exhaust
100+ In Stock
$2,283.00 CAD
$10.00 Shipping
- Ratio - 2:1
- Port Size - 1/2" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Fluorocarbon (Viton)
- Relief - Relieving
- Output Options - Negative Bias
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$2,324.00 CAD
$10.00 Shipping
- Ratio - 1:2
- Port Size - 1/2" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Fluorocarbon (Viton)
- Relief - Non-Relieving
- Output Options - None
- Exhaust Port - Tapped Exhaust
100+ In Stock
$2,389.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 1/4" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Fluorocarbon (Viton)
- Relief - Non-Relieving
- Output Options - None
- Increased Adjustability - None
- Exhaust Port - Tapped Exhaust
100+ In Stock
$308.00 CAD
$10.00 Shipping
- Ratio - 1:2
- Port Size - 1/4" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Fluorocarbon (Viton)
- Relief - Non-Relieving
- Output Options - Negative Bias
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$484.00 CAD
$10.00 Shipping
- Ratio - 1:3
- Port Size - 1/4" NPT
- Port Thread - BSPP (Parallel)
- Elastomers - Fluorocarbon (Viton)
- Relief - Relieving
- Output Options - None
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$533.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 1/2" NPT
- Port Thread - NPT
- Elastomers - Silicone
- Relief - Non-Relieving
- Output Options - None
- Increased Adjustability - None
- Exhaust Port - Tapped Exhaust
100+ In Stock
$781.00 CAD
$10.00 Shipping
- Ratio - 1:1
- Port Size - 1/4" NPT
- Port Thread - NPT
- Elastomers - Nitrile on Dacron
- Relief - Non-Relieving
- Output Options - Negative Bias
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$1,464.00 CAD
$10.00 Shipping
FAIRCHILD Model 20 Pneumatic Precision High Capacity Volume Booster, 1:1 Ratio, 3/8" NPT, Tapped Exhaust, By-Pass Valve view more
- Tapped Exhaust
- By-Pass Valve
- Body & Housing: Aluminum
- Trim: Zinc Plated Steel, Brass
- Diaphragms: Nitrile on Dacron Fabric
100+ In Stock
$1,762.00 CAD
$10.00 Shipping
- Ratio - 1:3
- Port Size - 1/4" NPT
- Port Thread - BSPT (Tapered)
- Elastomers - Nitrile on Dacron
- Relief - Non-Relieving
- Output Options - Negative Bias
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$2,195.00 CAD
$10.00 Shipping
- Ratio - 4:1
- Port Size - 1/2" NPT
- Port Thread - NPT
- Elastomers - Nitrile on Dacron
- Relief - Relieving
- Output Options - None
- Increased Adjustability - None
- Exhaust Port - Straight
100+ In Stock
$2,329.00 CAD
$10.00 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
- 1:1
- 1:2
- 1:3
- 1:4
- 1:5
- 1:6
- 2:1
- 3:1
- 4:1
- 5:1
Relief
- Non-Relieving
- Relieving
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)
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
