Discuss Way to work out flow rates in the Plumbing Jobs | The Job-board area at PlumbersForums.net
18lpm without. 2.2bar pressure at shower upstairs.
Customer wants more pressure as they have 25lpm at tap downstairs. 4.5bar pressure.
25lpm and 4.4bar I believe this is static and dynamic pressure?
Thanks rik. That's what I meant sorry. Just like standing and working pressure at a meter.
Thanks for reply last plumber. So let's say we know the dynamic pressure at the stopcock and before the pressure reducing valve. What calculation would you then use to work out what you would potentially gain by upgrading the pipe?
Its okay knowing pressures prior to the cylinder pressure red valve and at the stopcock but they won't be the same due to the height the water is traveling and the restrictions in the pipe work. I.e bends and sockets.
I would assume that pressure at stopcock and flow rate would be all that was needed to work out what pressure you would achieve the other end of the pipe.
For example 25lpm and 4 bar at stopcock would reduce pressure by 0.2lpm for every mtre of horizontal pipe. 0.4 every meter of vertical. 0.2 for every bend, 0.1 for every socket.
Surely someone must have come up with a simple equation like that?
What does the pressure reducing set take it down to?
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