About pipe line sizing equation?

Question

About pipe line sizing equation?

Answer 1

What do you want to know exactly?  

There are many factors to consider.  You need to know the type of fluid to transport, laminar or turbulent, flow rate, GPM or CFM, pressure drop, elevation, distance, fittings for turns and corners, pipe smoothness, friction loss....

Answer 2

in most situations, the flow velocity is the important factor, gas or liquid,

most products and /or applications, will have a desirable flow velocity, to keep within. also the higher the flow velocity, the greater pressure loss.

off the top of my head, steam and gases <80 m/s, oils <15m/s, suction lines suppling pumps < 5m/s, milk (so you dont damage the product) < 6m/s,....etc etc.

also high flow velocities give noise, which maybe a consideration,

gas over 100m/s makes heaps of noise, and the db can be calculated,

liquids over 25m/s became nosie,...

from the flow veloicty and the volume transfer you want then calculate the pipe ID.

Answer 3

bigger pipe allows greater flow rate.

Answer 4

no where near enough information---water?--sewage?--gases?--g... flow?--pressure piping? etc.