• 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
