Pressure Vacuum Temperature Vintage

Nason Switch
Designs Ensure
High Reliability

All of Nason’s pressure switches use a snap-action electrical device activated by a precise elastomer diaphragm or piston offering a precise and repeatable design. The snap-action design will maintain its state with contacts either open or closed, until a precise set point is reached when it will snap over center to a new state. It will remain in that state until a distinct change towards its original setting is sensed, at which time it will snap back to its original state. The design’s snap action feature prevents contact intermittency near its switch point, which is common in creepers. As system pressures fluctuate, our switches inherent differential prevents searching. Nason uses only the highest quality snap action switches. These switches and Nason’s are UL, CSA, and military approved.

Our elastomer diaphragm, which moves a precise .040 of an inch, ensures accurate, instantaneous contact under all operating conditions. While nitrile is preferred for general use, we can also provide ethylene, propylene, fluorocarbon, fluorosilicone, and neoprene, depending on your need. Nason tests 100% of its switches for accuracy.

Under most operating conditions, Nason switches have an operational life of over one million cycles. Smart design, quality components, and careful assembly make a switch that easily outlasts the competition.

We offer media connections in NPT, BSP, SAE, JIS, DIN, MS, and many more as well as over 20 electrical connections for any application.