The FlowCalc app is a flow resistance calculator for water under pressure in PVC & HDPE plastic pipelines and is intended to be used by pipe line design engineers, engineers, contractors and architects. DPI Plastics (Pty) Ltd is a leading South African manufacturer of plastic piping systems and has been operating since the 1980s. Highly regarded as a pioneer & technical expert in the industry, DPI Plastics has produced multiple hard copy and electronic technical manuals used successfully by its client base over many decades. Converting these manuals to mobile apps is the next step in the evolution of DPI Plastics and the way in which the company supports and adds value to the engineering & built environment.

The FlowCalc app is based on the Colebrook-White formula ( K = 0.003mm) for pipes flowing full with water at 20°C and viscosity of 1.01E-06 m²/s. It is useful in (1) pipe size calculation; (2) water delivery / discharge calculation and (3) friction loss calculation. A useful feature of the FlowCalc app is that results can be sent via e-mail.

A basic knowledge of pipeline design and hydraulics is required, in order to use the FlowCalc app.

Note the FlowCalc app is merely intended as a guideline application.
All information in this work is provided in good faith and based on our experience & knowledge. DPI Plastics (Pty) Ltd cannot be held responsible for any losses of any nature, occurring as a result of using information contained within this work. Final pipeline design should always be signed off by a qualified pipeline design engineer before implementation.
DPI Plastics reserves the right to amend or change any information contained in this work at any time, as they see fit.
This work is protected by copyright ownership and any unauthorized copying or use of any material in this work is prohibited.


New Dimension Technology
7.6 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.
Age Rating
Rated 4+
© New Dimension Technology


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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