Neodyn 181P NEMA 4X and 13 Adjustable Vacuum Switch

Neodyn 181P NEMA 4X and 13 Adjustable Vacuum Switch is a compact, versatile instrument engineered to deliver reliable performance across numerous industrial applications. At the core of this device is the efficient Nega-Rate® Belleville disc spring, a mechanism that provides superior set point stability and exceptional vibration resistance, ensuring precise operation even in challenging environments.

Description

Neodyn 181P NEMA 4X and 13 Adjustable Vacuum Switch represents a high standard in process instrumentation, combining rugged construction with precision engineering. It is specifically built to handle the rigors of industrial settings where accuracy and longevity are paramount.

Stability via Nega-Rate® Technology The defining feature of the 181P series is the utilization of the Nega-Rate® Belleville disc spring. Unlike traditional sensing elements that may drift over time or react poorly to mechanical shock, this disc spring ensures that the set point remains stable. This inherent vibration resistance makes the switch particularly effective in applications involving pumps, compressors, or heavy machinery where movement is constant.

Versatile Adjustment and Control Process control often requires fine-tuning. This switch is equipped with an internal, slotted adjustment wheel, allowing technicians to calibrate the device precisely to the application’s needs. Furthermore, the unit offers a selectable deadband feature, which can be preset at the factory, providing engineers with customizable control over the switching differential.

Robust and Certified Construction Safety and compliance are critical in industrial facility design. The 181P carries electrical listings from Underwriters Laboratories, Inc., CSA International, and FM Approval. The housing is designed to meet NEMA 4X and 13 standards, ensuring protection against corrosion, water ingress, and dust, making it suitable for both indoor and outdoor use in harsh conditions.

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 Listings: Switch listed by Underwriters Laboratories, Inc., CSA International and FM Approval
  • Electrical Connection: 1/2 NPT male conduit connection, 18″ free leads
  • Pressure Connection: 1/4 NPT Female and 1/2 NPT Male
  • Temperature Range*
    • Ambient: -40°F to +176°F (-40°C to +80°C)
    • Media: -40°F to +300°F (-40°C to +149°C)
  • Adjustment: Internal, slotted adjustment wheel
  • Shipping Weight: Approximately 13 ounces

* Temperature limits change with O-Ring selection

Features

  • Nega-Rate® Belleville Disc Spring: Delivers superior set point stability and vibration resistance.
  • Selectable Deadband: Feature allows for factory presetting to optimize process control.
  • Compact Design: Versatile form factor suited to numerous industrial applications.
  • Internal Adjustment: Settings are managed via a slotted adjustment wheel for security and precision.
  • Certified Reliability: Electrical listings include UL, CSA International, and FM Approval.
  • Dual Pressure Connections: Equipped with both 1/4 NPT Female and 1/2 NPT Male ports for installation flexibility.

Applications

Neodyn 181P NEMA 4X and 13 Adjustable Vacuum Switch is engineered for demanding sectors requiring precise vacuum monitoring:

  • Hydraulic and Pneumatic Systems: Ensuring consistent vacuum levels in fluid power circuits.
  • Process Manufacturing: Monitoring filtration systems and vacuum drying processes.
  • Petrochemical Industry: Providing safe switching in environments requiring NEMA 4X corrosion resistance.
  • Machine Tooling: Vacuum workholding and clamping verification where vibration is present.
  • Industrial Cooling: Vacuum maintenance in refrigeration and chiller loops.