Annex
7.
ANNEX
Flow rate / flow velocity / pipe diameter diagrams for the 8025
l/min
m
3
/h
US gpm
100000
5000
20000
50000
10000
2000
30000
20000
5000
1000
10000
500
2000
5000
1000
200
3000
2000
500
100
1000
50
200
500
100
20
200
50
10
100
5
20
50
10
2
20
5
1
10
0.5
2
5
1
0.2
2
0.5
0.1
1
0.05
0.2
0.5
0.1
0.02
0.2
0.05
0.01
0.1
0.3
0.5
* for following fittings:
•
with external threads acc. to SMS 1145
•
with weld ends acc; to SMS 3008, BS 4825 / ASME BPE or DIN 11850 Rg2 ;
•
Clamp acc. to SMS 3017 / ISO 2852, BS 4825 / ASME BPE or DIN 32676.
0.3
0.5
1
3
5
1
3
5
10
Flow velocity
E-56-
Flow transmitter 8025/8035
DN 400
DN 350
DN 300
DN 250
DN 200
DN 150
DN 125
DN 100
DN 80
DN 65
DN 50 (DN65)*
DN 40 (DN50)*
DN 32 (DN40)*
DN 25 (DN32)*
DN 20 (DN25)*
DN 15 (DN15 / DN20)*
Example:
- Specification: if the nominal flow rate is of
10 m
3
/h, the optimal flow velocity must be between
2 and 3 m/s
- Solution: the intersection of the flow rate and the
flow velocity in the diagram shows the appropriate
diameter, DN40 or DN50 for the fittings marked
with *.
10
m/s
30
fps