Senses differential air pressure in HVAC systems and provides on/off output. A typical application is sensing fan shutdown in a unit ventilator to close the outdoor air damper.
Converts a pneumatic signal from a controller to an electrical switching action to provide start and stop control. Replacement devices available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell pneumatic/electric switches.
Pneumatic-electric switches convert a controller's pneumatic signal to electrical switching, providing start and stop control. Replacements available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell pneumatic/ electric switches.
Pneumatic diverting switch used to manually divert, block, or bleed air in pneumatic air lines with a change in conditions. Replacement kits are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell switches.
Manually position a remote damper actuator or reset the setpoint of a pneumatic controller. They can also provide minimum damper position. Replacement kits are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell switches.
