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Venturi
Rolled and welded or Bar stock  - DELTAFLUID

Description

 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

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