Neodyn 142P NEMA 4 and 13 Ultra Low Vacuum Switches

Neodyn 142P NEMA 4 and 13 Ultra Low Vacuum Switches are specialized instruments engineered for applications requiring the detection of ultra-low pressure and vacuum levels. Distinguished by a unique construction, these switches combine high sensitivity with high proof pressure capabilities, ensuring durability in demanding systems.

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.

Brand

Neodyn

Neodyn

ITT Neo-Dyn® is a leading manufacturer of high quality and reliable industrial switches. Our compact adjustable switches, pressure switches, hazardous area switches, vacuum switches, and temperature switches support a variety of applications throughout the world. Our legacy of competitively priced products and on time delivery, guarantee that you have the proven performance in the product that you need to support your specific requirements when you need it most. With a strong focus in the aerospace, general industrial, energy and chemical markets, we are your first choice for all of your switch product needs.

Specifications

  • Electrical: Snap action electrical switch recognized by Underwriters’ Laboratories, Inc. and CSA International
  • Electrical Connection: 1/2 NPT female conduit connection with terminal block
  • Pressure Connection: 1/2 NPT Female
  • Temperature Range*:
    • Ambient: -40°F to +180°F (-40°C to +82°C)
    • Media: -50°F to +250°F (-46°C to +121°C)
      *Temperature limits change with O-Ring selection
  • Adjustment: Concealed wrench flat adjustment with range scale
  • Shipping Weight: Approximately 3.5 pounds

Features

  • Ultra Low Sensing: Designed specifically for ultra-low pressure and vacuum applications.
  • Nega-Rate® Technology: Belleville disc spring ensures superior set point stability and vibration resistance.
  • High Proof Pressure: Unique construction allows for high over-pressure capability without damage.
  • Direct Process Compatibility: Wide range of wetted materials eliminates the need for diaphragm seals.
  • Secure Adjustment: Features a concealed wrench flat adjustment mechanism with a visible range scale.
  • Certified Safety: Snap action electrical switch recognized by UL and CSA International.

Applications

  • Neodyn 142P NEMA 4 and 13 Ultra Low Vacuum Switches are essential for industries requiring precise low-pressure management:
  • Tank Blanketing: Monitoring low-pressure gas blankets in storage vessels.
  • Vapor Recovery: Controlling vacuum levels in hydrocarbon recovery systems.
  • Chemical Processing: Monitoring reactor pressures where corrosive media is present.
  • Filtration Systems: Detecting clogged filters via low differential vacuum.
  • HVAC Systems: Monitoring airflow and duct pressure in industrial facilities.