Pneumatic Relay 3 Port Selector High Pressure 30 Pounds per Square Inch 0-140 Degrees Fahrenheit

Three-port relays are used in HVAC systems, to perform a variety of relay functions, such as transmit the higher of two input signals, lock out one pressure signal when a second signal is higher, or transmit the lower of two pressure signals.

• Uses diaphragm-logic technology
• Sharp-barb air connection with plastic tubing
• Molded plastic construction
• 0 to 140 deg F temperature
• 5 to 95% RH humidity range
• 0.039 scfm at 1 psi differential capacity
• Higher-of-two-pressures selector relay