You are here

Pressure loss calculation

Calculation of the pressure loss in individual pipelines, taking into account installations and their flow resistances as well as the geodetic height for compressible and incompressible media.

  • Enhanced flow resistance database according to I. E. ldel'chik “HANDBOOK OF HYDRAULIC RESISTANCE“
  • Pressure loss with NPSH calculation 
  • Graphical support

Support of two-phase flow conditions according to three different calculation methods:

  • L. Friedel “Improved friction pressure drop correlation for horizontal and vertical two phase pipe flows” European two phase flow group meeting, Ispra, 5-8 June 1979
  • H. Müller-Steinhagen – K. Heck „A Simple Friction Pressure Drop Correlation for Two-Phase Flow in Pipes” Chem. Eng. Process., 20 (1986) 291-308
  • Homogeneous flow model

Pressure surge

  • Calculation for single-run piping systems which end with a control valve, as a function of the closing time and the valve characteristic
  • Valve database and graphical support


  • Calculation of basic values, such as the surface area, volume, flow velocity and Joukowsky peak

Pipe wall thicknesses

Pipe materials can be selected from a user extensible Material Database and you can also calculate all relevant parameters, such as tensile strength, creep rupture strength and yield strength.

Calculations optionally according to:

  • ​EN 13480:2002
  • API 521:2020
  • ASME B31.3:2016
  • DIN 2413:2011
  • DIN 2413:1993
  • DIN 2413:1972

In addition to straight pipes, pipe bends with and without constant wall thickness can be calculated for pulsating and static loads.

Pipe compensation

Calculation of changes in length, stresses and loads for

  • Pipe expansion
  • Clamped pipes
  • L-bends
  • U-bends

Span calculation

  • Calculation of the individual weights (pipe, medium, insulation)
  • Span calculation taking account of sag
  • Pipe materials can be selected from a user extensible Material Database