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Table 1

The specification of pumping stations, transmission pipeline and protective system

Specification of pumping stationSpecification of transmission pipelineSpecification of protective system of project
Type of pump Horizontal centrifuge Pipes' diameter 1,800 mm Total volume = 20 m3 Air-chamber 
Number of pumps 10 Maximum allowed pressure 32 bar Diameter (mm) Outlet pipe Inlet pipe Air-inlet valves 
Total pumps’ head 205 m Pipes’ material ST52 steel 450 37 36 
Total discharge 4 m3/s Vapor pressure –0.85 bar 450 40 39 
Rotational speed of any pump 1,450 rmp Pipes’ diameter 16 mm 450 42 41 
Outlet valve diameter 600 mm Compressive wave velocity 102 m/s 450 44 43 
  Unit length price $US588 450 47 46 
Specification of pumping stationSpecification of transmission pipelineSpecification of protective system of project
Type of pump Horizontal centrifuge Pipes' diameter 1,800 mm Total volume = 20 m3 Air-chamber 
Number of pumps 10 Maximum allowed pressure 32 bar Diameter (mm) Outlet pipe Inlet pipe Air-inlet valves 
Total pumps’ head 205 m Pipes’ material ST52 steel 450 37 36 
Total discharge 4 m3/s Vapor pressure –0.85 bar 450 40 39 
Rotational speed of any pump 1,450 rmp Pipes’ diameter 16 mm 450 42 41 
Outlet valve diameter 600 mm Compressive wave velocity 102 m/s 450 44 43 
  Unit length price $US588 450 47 46 
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