• Ideal choice in a variety of applications with specific input/output requirements such as override or 

multi-element control, or as an ON-OFF valve
• When used as an ON-OFF valve, the Model 22 may open or close a pneumatic circuit, moving rapidly 

to a full open or a full closed position when signal pressures deviate from set pointIn the full open 

position, the valve passes full supply pressure without modulation or regulation. The function is achieved 

by connecting output pressure to the signal chamber. This connection forms a feedback loop so that, 

once flow is started, the valve is driven wide open. The relay always goes full open or full closed when 

conditions are as shown in the diagrams on the Rotork

Fairchild specification sheets and catalogue
• Small bleed across relief seat assures fast response to even very small signals
• Multiple inputs available - allows versatility in process control applications
• Adjustable bias range from -18 to +15 psig permits variation in output to meet your needs
• Two gauge ports located 90° from supply and outlet ports - versatility in installation in your equipment
• Line or panel mounting - quick and easy installation in the field