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ISO 5167:1991 Orifice Flow Calculation F068

Precision

Full Round Truncate

Options
Inputs
Constants
Intermediates
Outputs

Solve for

Flow rate Orifice size Differential pressure

Fluid

Gas Liquid

Tapping type

Flange D / D2 Corner

Drain hole

None BS 1042

Calculate for

Mass Observed volume Standard volume Normal volume Energy

Expansibility factor

User entered Calculated

Temperature

Upstream (T1) Downstream (T3)

Density

Upstream (P1) Downstream (P2)

Pipe data

Pipe diameter

Out of range

Pipe temperature coefficient

Pipe calibration temperature

Flow element data

Orifice diameter

Out of range

Orifice temperature coefficient

Orifice calibration temperature

Process data

Dynamic viscosity

Differential pressure

Upstream temperature

Upstream pressure

Upstream density

Isentropic exponent

Intermediates

Corrected orifice diameter

Corrected pipe diameter

Beta ratio

Pressure loss

Expansibility factor

Discharge coefficient

Reynolds number

Flow rates

Mass

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