Source: http://www.gpszx.com/neteaseivp/resource/paper/detail.jsp? Pk = 631
GPSZX excerpt
Summary: Common value of flow rate in pipeline Key words: pipeline flow rate
Common value of flow rate in the pipeline (m / s)
Fluid species
Application occasion
Pipeline type
Average flow rate
Note
water
Generally give the main pressure pipeline
2-3
Low voltage pipeline
0.5-1
Pump import
0.5-2.0
Pump outlet
1.0-3.0
Industrial water
Centrifugal pump pressure tube
3-4
Centrifugal pump water pipe DN250
1-2
DN250
1.5-2.5
Recurrent pump pressure tube
1.5-2
Reciprocating pump water absorbing pipe
<1
Water supply
1.5-3
Drainage pipe
0.5-1.0
Cooling cold water pipe
1.5-2.5
Hot water pipe
1-1.5
Condensate condensate pump water pipe
0.5-1
Condensate pump outlet pipe
1-2
Self-coating tube
0.1-0.3
General liquid low viscosity
1.5-3.0
High viscosity liquid viscosity 50MPa.sdn25
0.5-0.9
DN50
0.7-1.0
DN100
1.0-1.6
Viscosity 100MPa.sdn25
0.3-0.6
DN50
0.5-0.7
DN100
0.7-1.0
DN200
1.2-1.6
Viscosity 1000MPa.sdn25
0.1-0.2
DN50
0.16-0.25
DN100
0.25-0.35
DN200
0.35-0.55
Gas low pressure
10-20
high pressure
8-15
20-30MPa
Exhaust pipe
2-7
Compressed air compressor compressor intake pipe
-10
Compressor gas pipe
-20
General situation DN <50
<8
DN> 70
<15
Saturated steam boiler, steam turbine DN <100
15-30
DN = 100-200
25-35
DN> 200
30-40
Overheated steam boiler, steam turbine DN <100
20-40
DN = 100-200
30-50
DN> 200
40-60
