Search within pages and documents

Request contact from Alfa Laval

Please select your country.

Flow Meter

Alfa Laval Flow Meter provides accurate measurement of feed, permeate, retentate and diawater flows in membrane filtration modules and plants for a wide range of hygienic industries.

  • Documents
  • Related industries

Accurate flow measurement

Alfa Laval flow meters are hygienic flow measuring instruments that enable accurate detection of liquid levels in membrane filtration modules and plants. Easy-to-read scales located in front of the tubes provide excellent visibility of the indicating floats.

Hygienic flow meter design

Alfa Laval flow meters feature a precision-machined tapered glass metering tube with a smooth surface. All materials comply with US Food and Drug Administration regulations, and all product-wetted parts are made of AISI 316L stainless steel and polysulphone. The flow meters are designed to withstand process temperatures between 0 and +100°C (+32 and 212°F).

Flow meter range

Alfa Laval flow meters are available in four nominal diameters, covering flow ranges from 60 l/h up to 20,000 l/h (16 – 5,283 U.S. gal/h) and pressures up to 16 bar (232 psi).

For more information, please refer to Documentation.  

  • Hygienic flow measuring instruments
  • Hygienic flow meter design
  • Flow meter range

Latest 'Close at hand' online version  

Find an Alfa Laval product

How it works


The Alfa Laval flow meter consists of a vertically oriented tapered glass metering tube with a larger end at the top and a metering float that is free to move within the tube.

Operating principle

A metering float rises in the tube in proportion to the fluid flow. The height of the float is an indication of the flow rate, and readings are taken from the scale on the metering tube. The scale indicates the fluid flow as a percentage of maximum flow (100% = max. flow). Different metering floats may be used within the same flow meter, thus making it possible to use the flow meter to measure several different flow ranges.

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 Flow Meter