GUIDE FOR MAXIMUM FLOW

Pumps and piping, a very common misconception people have when looking at pumps is to go for maximum pressure however we will show you that this is not necessarily the case.

If you want the highest amount of slurry to go through a pipe, a better option is to look at the hose size to reduce the friction rather than the pump.

Pipe Diameter Flow Rate M3/Hr Pressure Loss Over 1,000m
108mm (4") 125 9.07 bar 
  150 12.63 bar 
  175  16.72 bar 
131mm (5")  125  3.45 bar 
  150  4.8 bar 
  175                         6.36 bar 
158mm (6")  125  1.45 bar 
  150  2.02 bar 
  175 2.67 bar
  250 5.11 bar

6 mm was added to inside diameters of pipe diameter to allow for stretching. Figure will vary depending on dry matter of material being pumped. Above figures are for water.

System 1System 2System 3System 4
Targeting 170m3/hr  
1000m of 4" drag hose  pressure loss 15.86 bar 
Total pressure required  15.86 bar (not achievable with either bauer, criman or doda pump 
Actual flows achieved at tractor running at 1450rpm achieving 170m3/hr
600m of 6" drag hose  pressure loss 1.52 bar 
400m of 4" drag hose pressure loss 6.34 bar
Total pressure required  7.86 bar  

 

Targeting 170m3/hr
600m of 5" drag hose  pressure loss 3.62 bar 
400m of 4" drag hose pressure loss 6.34 bar
Total pressure required  9.96 bar  
Actual flows achieved at tractor running at 1450 rpm achieving 170m3/hr
600m of 6" drag hose  pressure loss 1.52 bar 
400m of 5" drag hose pressure loss 2.41 bar
Total pressure required  3.93 bar  

It is easy to see from the above figures that high pressure is not the answer, but hose diameter is if you want high outputs. Slurryquip has embraced this information and has developed a much more efficient umbilical system because of it, right down to the smoother couplings, we try to save as much of our pressure as we can. diesel and wearing out pumps creating this pressure then losing it due to a wrong hose and coupling choice.

So if you study the above, it will very quickly become apparent to avoid smaller hoses where possible.

OUR SYSTEMS

  • Most efficent systems
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  • Outputs 300m3/hr
  • Specializing in umblical systems since 1994
  • Market leading New Zealand & Australia

CALL US TODAY ON +44 (0) 7736 153 213

Head Office

  • info@slurryquip.com
  • +44 (0) 7736 153 213
  • Mountpanther, Clough
  • Downpatrick, BT30 8SJ

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  • JJ Limited
  • grant.jones@jj.co.nz
  • 03 211 0013
  • 260 Dee Street, Invercargill 9810

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