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Vacuum Switches, Vacuum Pressure Switches and Adjustable Vacuum Switches from Neo-Dyn.

A hermetically sealed enclosure is completely sealed from the environment and our Neo-Dyn hermetically sealed electrical assemblies are all metal with a glass header. All joints are soldered or welded to insure sealing integrity. Our explosion-proof enclosure is capable of withstanding an explosion which may occur within, and capable of preventing the ignition of an explosive atmosphere which may surround it. Plus you get the same benefits from our Belleville spring; greater set-point, vibration resistance, capability and cycle life.

Although, our standard product line is among the broadest in the industry; Pressure Switches General Purpose, Pressure Switches Hazardous Area, Vacuum Switches General Purpose, Differential Switches General Purpose, Differential Switches Hazardous Area, Temperature Switches General Purpose, Temperature Switches Hazardous Area, Sanitary Switches and our Switch Accessories. If you do not see what you want, please submit your request (link below) and our customer-support and engineering staff will work with you to provide a switch, ideally suited to your application.

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Vacuum Switches Hazardous Area

General Purpose and Hazardous Area switches (listed below) are catagorized by NEMA standards. Click on either the product image or the product description to view the switch datasheet.
click to view the 142Px PDF datasheet.
142P NEMA 7 & 9
Series Vacuum Switch/Internal Adjustment. This switch is designed for vacuum to pressure crossover and features many applications with a wide range of internal wetted materials that replace the necessity for diaphragm seals. Good for hazardous or corrosive environments. Enclosure 6.
click to view the 181px PDF datasheet.
181P NEMA 4X, 7, 9 and 13
Series Vacuum Switch/Internal Adjustment. Compact, adjustable vacuum switch for pneumatic and low impulse hydraulic process applications. Our Nega-Rate® Belleville disc srping offers superior set point stability and vibration resistance. The 181P series pressure switch also has a selectable deadband feature which can be pre-set. Enclosure 6.
click to view the 182Px PDF datasheet.
182P NEMA 7 & 9
Series Vacuum Switch/Tamper Resistant. This compact versatile vacuum switch is suitable for numerous applications serving low to mid-range vacuum applications. After adjustment and installation the units become tamper proof. Enclosure 6.