Presair
Pneumatic Switches & Controls
Original equipment manufacturers worldwide use pneumatic switches and controls designed and manufactured by Presair. These systems support reliable operation in consumer, industrial, medical, and other environments where equipment must function in wet, chemical, or potentially explosive conditions.
Presair also provides rapid prototyping, printed circuit board design, and electromechanical product development to meet specific application requirements.
custom options
Wide variety of options available to meet original equipment manufacturers product requirements.
high quality
Highly stable with good repeat accuracy. All switches are 100% tested at high & low settings, & at proof pressure.
safe & economical
Remote operation with complete electrical isolation. UL Recognized. Costs less than conventional controls
made in u.s.a.
Presair switches are designed & manufactured in Eau Claire, Wisconsin U.S.A.
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Air Switches
Presair air switches provide complete electrical isolation, with no voltage present at the point of actuation. Each system connects an air bellow to the air switch using flexible tubing. When the bellow is pressed, it sends a pulse of air through the tubing to actuate the switch.
Air switches are available for single-function or multi-function sensing applications, supporting a wide range of control needs.
Pressure Switches
Presair pressure switches activate electrical contact when system input reaches a defined pressure set point. Available in field adjustable or factory set models, each switch can be configured to operate at a specific pressure threshold.
Vacuum Switches
Presair mechanical vacuum switches make electrical contact when a specified set vacuum is reached at the input. These switches are available as either field adjustable or factory set, allowing each microswitch to operate at a different vacuum setting.
Air Actuators
All air push button actuators feature a sealed internal air bellow that prevents water intrusion into the air tube connecting the actuator to the air switch.