10 Caractéristiques techniques
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Formules des pertes de charge pour Promass E
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Coefficients des pertes de charge pour Promass E
DN
d [m]
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rÃqrÃpuh
trÃhrpÃyrh
2 m ·
⋅
Re
=
-------------------------- -
π d υ ρ
⋅
⋅
⋅
0,25
1,85
m ·
K υ
⋅
⋅
∆p
=
K2 υ
∆p
K1 υ m ·
⋅
⋅
=
+
-------------------------------------
ρ
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d
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0,86
–
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ρ
0,25
2
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m ·
ρ
d
K1
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! Ã
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Endress+Hauser
Promass 40
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K2
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⋅
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⋅
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⋅
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