sizing large pipe lines
sizing large pipe lines
(OP)
How do you size 6" and above lines for chilled and hot water use?
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RE: sizing large pipe lines
The two major factors that dictate pipe sizing are 1.friction/metre run 2.velocity
The limits for above parameters are decided based on issues such as total pipe run,annual operating hours,operating cost and initial investment cost.A general guide for water services pipe would be a maximum of 5 m/100 metre run of pipe for the friction rate and a maximum flow velocity of 3 m/s.
Generally pipes of diamemetre lower than 6" are selected based on friction rate and the velocity automaticall y falls into the acceptable range.For the larger diameter pipes this does not hold good.The selection is often based on flow velocity.Large pipes as a result have very low friction drops as compared to smaller dia pipes.
RE: sizing large pipe lines
RE: sizing large pipe lines