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Pipe Diameter Calculator

Pipe Diameter Calculator

How much pipe diameter do I need for my piping? A simple calculator can help you estimate the pipe diameter based on the flow rate and velocity of the fluid in the pipe.

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Also see
Volume Flow Rate*, L/s
Velocity*, m/s

 

 

 

 

Why use our calculator?

Knowing the size of the pipeline diameter plays a key role in the organization of hot and cold water supply networks. Improperly chosen cross-section of the water supply system can lead to a drop in system performance, increased pressure and emergencies.

This calculator allows you to estimate the minimum value of the inner diameter of the pipe at a given velocity of the medium and the capacity of the pipeline. The basic formula: d = √ [(4 × Q) / (V × π)], where Q – flow rate, V – water velocity. The optimum water velocity in the pipe is from 0.6 m/s to 1.5 m/s (2-5 ft/s), the maximum is 3 m/s (10 ft/s). Note that you must enter the INNER diameter of the pipe, not the OUTSIDE.

 

How do I estimate pipe diameter?

  1. Input the water velocity.
  2. Enter the flow rate.
  3. Click the "Calculate" button.
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