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Pressure Reduction: Pressure drop coefficient for reducers

 

Pressure drop coefficient for reducers, extension in direction of the flow

e.g.: C-RED, C-GR, C-KOVO

The pressure drop coefficient of extensions with a reduction in direction of the flow is determined as follows:

Formula pressure drop coefficient for reducers

Illustration pressure drop coefficient for bends

 

A₁ = Area of the opening
A₂ = Area of the exit

Specifying a value here does not make sense due to the fact that the pressure drop coefficient can be anywhere between 1.5 and 5000.

Pressure drop coefficient for reducers, reduction in direction of the flow

e.g.: C-RED, C-GR, C-KOVO

The pressure drop coefficient of extensions with an extension in direction of the flow is determined as follows:

Exit opening (A₂) ⁄
Entry opening (A₁)

Pressure drop coefficient

   A₂ ⁄ A₁ = 0.8

   ζ = 0.15

   A₂ ⁄ A₁ = 0.6

   ζ = 0.25

   A₂ ⁄ A₁ = 0.4

   ζ = 0.35

   A₂ ⁄ A₁ = 0.2

   ζ = 0.42




Illustration pressure drop coefficient for bends

 

A₁ = cross section of the opening
A₂ = cross section of the exit


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