ORIFICE SIZING CALCULATION

In this example, either calculate the head drop through an orifice of known diameter, or enter the head drop required and calculate the required size of orifice. The calculation applies to orifices where the orifice diameter is less than 0.3 of the pipe size.

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Flow Rate 

Coefficient

Head Drop

Orifice Diam.

Pipe Velocity
Dynamic Head

Friction Loss
Orifice Sizing