 Venturi tube design based on ISO5167, ASME.MFC.3M and ISO TR15377 :2007 industry standards  No need for calibration – standardised principle  Accuracy, repeatability and reliability of the flow element  Very low pressure loss  Low requirements in terms of upstream and downstream lengths  Suitable for all types of fluids, large flow range  Very long life time  Different types of venturi tubes : machined from a bar stock or rolled and welded from a metal sheet The venturi tube consists of a gradually decreasing convergent inlet followed by a cylindrical throat and a gradually expanding conical section called the “divergent”. The conical section allows the fluid to nearly regain its original pressure. Due to the fact that a major part of the output pressure is regained, the venturi tube is particularly suited for the measurement of flow rates in systems where a low pressure differential is needed. The venturi tube is a robust, reliable device.

Flow meters

Product features

Angle of the divergent section 7 to 15°
Angle of the convergent section 21 ± 1°
Ratio pressure loss 11 to 21 of ΔP………β=0,4 (depending on the divergent 4 to 8% of ΔP …….. β=0,75 section)
Accuracy 0,5 to 1,5% according installation
Material Carbon steel, Stainless steel, Monel, Hastelloys, Inconels, Titane, Tantale, PVC, etc
Calibration No special need (standardised principle) May be performed on request

Additional product literature

PDF documents



View all the products offered by this company

Need more information from the seller?