Description
Neodyn 142P NEMA 4 and 13 Ultra Low Vacuum Switches provide a robust answer to the challenges of monitoring minute pressure changes in industrial environments. They are designed to withstand the rigors of heavy industry while maintaining the precision needed for low-vacuum control.
Superior Stability and Durability The core advantage of the 142P series lies in its Nega-Rate® Belleville disc spring. Unlike standard sensing elements that may drift or flutter under low pressure, this snap-action mechanism ensures a stable set point. Furthermore, the unit’s unique construction allows it to handle high proof pressures, protecting the sensitive sensor from system surges that would damage lesser instruments.
Eliminating Diaphragm Seals Traditionally, handling corrosive or viscous media required external diaphragm seals to protect the switch. The 142P series addresses this with a wide range of wetted material options, allowing the switch to be wetted directly by the process fluid. This significantly reduces installation complexity, potential leak points, and overall maintenance costs.
Robust Environmental Protection Housed in an enclosure rated for NEMA 4 and 13, the 142P is protected against windblown dust, rain, splashing water, and hose-directed water. The electrical assembly is recognized by Underwriters’ Laboratories, Inc. and CSA International, ensuring adherence to strict safety standards.








