Product Description

FAIRCHILD 20812 (Model 20 Volume Booster)

The Fairchild Model 20 Volume Booster is a high-capacity pneumatic relay designed to significantly increase the stroking speed of control valves. It operates on a signal pressure to accurately reproduce a high-volume output pressure. Known for its fast response and stable operation, the Model 20 is ideal for systems requiring rapid valve actuation or control of large volume actuators. The 20812 configuration specifies particular port sizing and materials within the Model 20 series.

Technical Specifications:

Signal to Output Ratio: 1:1
Flow Capacity: 45 SCFM (76.5 m³/Hr)
Maximum Supply Pressure: 150 psig (10 BAR)
Maximum Signal Pressure: 150 psig (10 BAR)
Maximum Output Pressure: 150 psig (10 BAR)
Sensitivity: Less than 1″ Water Column
Signal Port Size: 1/4″ NPT
Output Port Size: 1/4″ NPT
Supply Port Size: 1/4″ NPT
Operating Temperature (Standard Nitrile Diaphragms): -40°F to +200°F (-40°C to +93°C)
Body Material: Aluminum
Trim Material: Zinc Plated Steel, Brass
Diaphragm Material: Nitrile (Standard for 20812)