Pneumatic switches use air to actuate, or open and close, circuits. The pneumatic switch sends air through a tube to flip a switch and activate or deactivate attached circuitry. At Air Logic, we specialize in developing and supplying pneumatic switches such as pressure and vacuum switches. Learn more about how these two switch types operate, their applications, and our available selection of options.
Pneumatic pressure switches activate an electrical contact once pre-established pressure levels are present within fluid systems. Once enough pressure acts on the switch, it will flip and close an attached circuit to turn a device or function on. When pressure levels drop, the switch will open the circuit and turn off the device. Pressurized fluid systems with set pressure thresholds, such as circuits for lights, pumps, HVAC systems, solenoids, and valves, commonly use these switches.
Pressure switches rely on changes in pressure to actuate. When pressure on the switch’s diaphragm increases, it starts to compress a spring. That spring is calibrated to compress only beyond a certain pressure rating, or the setpoint. Once the spring tenses or compresses beyond that point, the switch will flip. Pressure switches can either close normally open (NO) electric contacts or open normally closed (NC) contacts.
At Air Logic, we manufacture pressure switches to integrate with a wide variety of pneumatic systems. We build each of our switches for optimal reliability, with every design capable of managing at least 1,000,000 cycles without failure. Our switches use subminiature designs so they can fit into tight or compact spaces, and they’re also compatible with different sterilization options because they are ozone- and gamma radiation-safe. Other pressure switch options and features we provide include:
Pneumatic fluid systems can also use vacuum switches. They respond to vacuum pressure or negative pressure, levels to actuate. These switches are useful in environments where a vacuum holds liquids or gases; they can passively monitor vacuum pressures and open or close circuits based on any pressure changes.
Once the switch registers a change in the negative pressure based on the preset sensitivity of the setpoint, the diaphragm of the switch will open or close the attached circuit, turning off or powering on a device. Vacuum switches can be used with NO and NC states.
At Air Logic, we design vacuum switches that are versatile and built to last. We test each switch design to ensure it can provide fail-proof functionality through at least 1,000,000 cycles. Our team also designs them to be ozone- and gamma radiation-safe for sterilization purposes. Choose from these options and specifications for your vacuum switches:
A variety of fluid systems, particularly given our subminiature and compact design options, make use of pressure and vacuum switches.
Some of the most common applications for pressure switches include:
Popular applications for vacuum switches include:
At Air Logic, we provide a versatile line of pressure and vacuum switches for specialized commercial and industrial applications. Our company is ISO 9001 certified to maintain high standards of product quality you can trust. Our products include:
Since 1975, the dedicated Air Logic team has focused on innovation, customer satisfaction, and high-quality products and services. Contact us to learn more about our comprehensive line of pneumatic and vacuum control equipment and our design and manufacturing capabilities, or request a quote today to start your order.
ActionDave said: http://betterswitch.com/1.html
These guys make an air switch that you could use to control a light.These guys make an air switch that you could use to control a light.
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Its still a receptacle that has to be converted to the lighting permanent wiring. The issue OP is facing is how to make a code compliant transition with a cord set to permanent wiring.If someone asked me to do this, I really wouldn't have a problem setting a j-box on the lighting wiring and using an appliance cord to connect to the air switch module. Its possible to do this in a safe manner.The only 100% code compliant and listed method I can think of is to use a power sequencer relay, which would be a 120v cord set with dry contact relay on the end (C/NO/NC), connect that to a 12v ice-cube relay for which you'll also need a transformer, and connect the switch leg to the ice cube. But you're looking at $150-$200 in parts in addition to the air switch, which is dumb.