Search within pages and documents

Request contact from Alfa Laval

Please select your country.

Level Switch

Level switches provide accurate and reliable remote liquid level indication for hygienic brewery, food and beverage, and biopharm processes.

level_switch_right_side_640x360.png
  • Documents
  • Related industries
  • Related services

Compact, hygienic design

Alfa Laval Level switches are hygienic measuring devices that are especially suitable for detecting liquid levels in small process tanks used in brewery, food and beverage and personal care industries. This includes low-viscosity liquids, such as water and beer, as well as high-viscosity liquids and pastes, such as honey, yoghurt and toothpaste.

All wetted parts are made of AISI 316L stainless steel and PEEK, and designed to withstand process temperatures between -20 and +140°C. Because these 3-A certified level switches can withstand high temperatures, they are well suited for use in Cleaning-in-Place (CIP) and Sterilization-in-Place (SIP) processes.

Fast, accurate readings

Level switches enhance process reliability by delivering fast, accurate indication of the liquid levels. Integrated electronics provide a digital logic signal and incorporate automatic compensation for foam and bubbles as well as viscous, sticky media.

For more information, please refer to Documentation.   

  • Compact, hygienic design
  • Fast, accurate readings
  • Provide a digital logic signal

 

Latest 'Close at hand' online version  

Find an Alfa Laval product

How it works

Operating principle

To measure the liquid level, the level switch employs a high frequency sweep signal, which is emitted from the sensor tip into the tank.

The media act as a virtual capacitor that, together with a coil in the sensor head, forms a circuit creating the switch point signal. This virtual capacity depends upon the dielectric value of the media, which is well defined for most media.

Level-Switch-drawing,web.jpg

Download the product models in Neutral or Native CAD file formats. It is also possible to download 3D PDF files.

 View CAD portal 

Visit the animations site and take a look inside a product to see and understand how it works. 

View animations 

To keep you updated on important sustainability issues and opportunities in your industry and processes.

Learn more

Part of a broad instrumentation range

Alfa Laval offers a comprehensive range of instrumentation intended for hygienic applications in the dairy, foodbeverage,home carepersonal care, biotechnology and pharmaceuticals.

For a broader instrumentation range, explorer the differentproduct categories: analytical instruments, cleaning validation instruments, flow instruments, level instruments, pressure instruments, temperature instruments and weighning instruments.

Request information

Request information for Level Switch

;