3m head (absolute) on the suction side to (10m + 5m lift from pump + 2m friction loss) so say 15m differential head. The differential head of the pump is likely to be with approx. From a quick search it looks like you need about 5m/sec min in order for the gravel / cobbles to be lifted up the pipe and maybe a bit more so lets go for 6m/sec. With all due respect to artisi this isn't quite true (it's a bigger pipe), but more of that later.įirst off some assumptions needed to make the calculation work:įlowrate / velocity. RE: pump power requirement for a dredge pump Artisi (Mechanical) 16 Aug 17 00:59 This image below is from a 14" dredge sluice box. we are looking a 600 hp engine but before buy a engine I want get some advices from experts to avoid set big engine whith too much hp and fuel consuption.because this I try get some technical advice about the minimun hp need to pump from 30 mtrs deep and send 5 mts ahead trough 9 mts descharge pipe long.īy while its is all I can say, pls wait I upload a video to have idea in flow rate of this dredge. We had a cummin 400hp but this engine was dead and we dont get running to test. This dredge we are preparing to go more deep, let me upload a video in youtube to you have some idea in flowrate. Normally we use Cummins 400-480 hp in 14" and 16" dredges The material is heavy gravel whith big cobbles Well we do not have any kind of instruction, we make dredges by pratice try and error.Įverybody here have no idea in flow rate, etc
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