Model 20 Pneumatic Precision Volume Booster

Brand: Fairchild Industrial Products

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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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Description

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

Inventory

Specifications

Brand

Fairchild Industrial Products

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