Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
What size pipe will create better pressure?
Ive had an ongoing debate about pipe sizing and wether or not reducing the size of the pipe on a given valve as you go will help any as far as dynamic pressure for the sprinklers example. 10 sprinklers evenly spaced over 300ft of pipe. In one system the pipe size is reduce as it goes. It starts at 2" pvc and ends at 3/4" pvc. The second system runs 2" pipe the entire length. Which system under the most ideal conditions will have better dynamic pressure ie. Get the water to spray better from each sprinkler?
2 Answers
- Anonymous8 years agoFavorite Answer
Check out this guide which will give you good idea about it..
Source(s): http://www.irrigationtutorials.com/advice/outlet-p... http://automatic-rain.com/irrigation-installation/ - Richard SLv 68 years ago
The pipe should be stepped down as you move from the source.
Sorry, I don't know the math to support that statement.
Think of a really humongous pump - and the 2' pipe which will withstand incredible pressures attached to it. In that case I will suggest that the system could use a straight, un-stepped pipe. In the real world, however, the pump capacity is limited, the closer sprinklers will reduce the supply available for the distant sprinklrers, friction with the pipe wall will reduce the pressure at the far end of the line.
If you want all the sprinklers to have the same flow, each must have the same pressure. As you proceed down the length of the pipe there will be a decreasing volume of water. Therefore, the volume of the container - the pipe - must decrease.