MADE IN THE USA

Vacuum pressure switches

At Nason, our vacuum pressure switches feature a “no-creep” design with a snap-action electrical device activated by an elastomer diaphragm or piston. Available in factory preset or adjustable vacuum switch models, these components maintain their contacts in either an open or closed state until a precise pressure set point is reached. At that point, they snap over center to a new state and will remain there until the pressure drops below the exact set point. At that point, the vacuum switches will snap back to their original state.

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High accuracy

Tested for 100% accuracy, the snap action design ensures components change state at their precise set points every time without “creeping”.

Fixed or Adjustable

We offer both factory preset and adjustable vacuum pressure switches ranging from 1″ to 29″ of mercury (Hg).

Reliable

These durable vacuum switches are NEMA 4 & 13 rated with an operational life exceeding one million cycles under most conditions.

Customizable

Choose from a wide variety of configurations and electrical connection options to tailor your vacuum switches to your application.

Product Configurator

Don’t change your design to fit an off-the-shelf component. Configure the exact vacuum pressure switch you need with our online custom configurator. Choose a product and select the options that fit your application.

View both 2D sketches and 3D renderings and download a PDF datasheet or CAD file with a specific part number for your new switch.

Vacuum switch models

Built for precision and durability, Nason’s vacuum switches ensure dependable operation in any application. If our stock options don’t meet your needs, we can customize a solution to your exact specifications.

JV Adjustable Vacuum Switch

The JV compact, field-adjustable vacuum pressure switch is built to last and customizable to fit your specific applications. Choose from a variety of base material options, including brass, aluminum, nickel-plated, Delrin, 303 SS, 316 SS, and CF.

See JV adjustable switch

VM Vacuum Switch

The preset VM vacuum pressure switch is designed to handle a positive pressure range of 4″ to 29″ Hg and resist tampering. Choose from various base materials, including brass, aluminum, nickel-plated, Delrin, steel, 303 SS, and 316 SS.

See VM preset switch

VF Fixed Vacuum Switch

This cost-effective, factory-set vacuum switch is designed to resist tampering and features a compact size with a pressure range from 1.5″ to 28″ Hg. Choose from a variety of base materials, including brass, aluminum, nickel-plated, Delrin, 303 SS, and 316 SS.

See VF fixed switch

Vacuum pressure switch FAQs

Not sure if a vacuum pressure switch is the component you need? Check out these frequently asked questions to find out.
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