The Fairchild 25 Reversing Relay provides and output which will decrease in direct proportion to an increase in input pressure. The Fairchild 25 is ideally suited for a variety of precision control applications, including converting direct acting valves to recerse action, controlling opposite acting valves from a single transmitter, and cushioning cylinder loads.

Flow Capacity: 40 SCFM (68 m3/HR)
Maximum Output Pressure: 150 psig (1000 kPa)
Maxmum Supply Pressure: 250 psig (1700 kPa)

The Fairchild 85D Multi-Stage Biasing Relay is a precision control combining the sensitivity of a precision pressure regulator with psitive biasing capability. This compact, pilot-operated device offers unusually high output capacity with minimal air consumption, while providing excellent protection against supply or output pressure variations.

Flow Capacity: 14 SCFM (23.8 m3/HR)
Maximum Output Pressure: 150 psig (1000 kPa)
Maxmum Supply Pressure: 250 psig (1700 kPa)

The Fairchild 90 Low Pressure Selector Relay is designed to select the lower of two signal pressures to provide a continuous output pressure to a control device.
The Fairchild 91 High Pressure Selector Relay is designed to select the higher of two signal pressures, and to provide a continuous output pressure (or pressure range) to a controller.

Maximum Signal Pressure: 200 psig (1400 kPa)
Minimum Switching Differential: Less than 0.1 psig (0.7 kPa)
Maximum Differential between Signals: 100 psig (700 kPa)

The Fairchild 1500A features large supply and exhaust valves providing high forward and exhaust flows. A balanced Supply Valve seats minimises air consumption.

Flow Capacity: 150 SCFM (255 m3/HR)
Maximum Output Pressure: 3-15 psig (20-100 kPa)
Maximum Supply Pressure: 250 psig (1700 kPa)

The Fairchild 2500A Bias Reversing Relay provides an outlet pressure that decreases in direct proportion to increases in input signal.

Flow Capacity: 150 SCFM (255 m3/HR)
Maximum Output Pressure: 3-15 psig (20-100 kPa)
Maximum Supply Pressure: 250 psig (1700 kPa)