Burkert 8025 UNIVERSAL Notice D'utilisation page 73

APPENDIX
Flow chart (gpm, DN in inch and ft/s)
gpm
20000
10000
5000
2000
1000
500
200
100
0.5
0.2
0.1
0.05
0.02
0.01
Example:
Specifications:
Nominal flow: 50 gpm
Determination with ideal flow velocity: 8 fps
With these specifications, the required orifice, as defined by the flow chart is
DN 40 (DN50)*.
* For following fittings:
- weld end fittings acc. to SMS 3008 or BS 4825 / ASME BPE
- Tri-Clamp® acc. to SMS 3017 / ISO 2852 or BS 4825 / ASME BPE
50
20
10
5
2
1
0.3 0.5 1 2 3
Flow velocity
E-34-
8025 UNIVERSAL
DN 400
DN 350
DN 300
DN 250
DN 200
DN 150
DN 125
DN 100
DN 80
DN 65
DN 50 (DN 65)*
DN 40 (DN50)*
DN 32 (DN40)*
DN 25 (DN32)*
DN 20 (DN25)*
DN 15 (DN 20)*
DN 08
DN 06
fps
5 10 20 30