Liquid Line Sizing Calculator | VBlink Consultants

01

Input Parameters

Enter the liquid operating conditions and pipe parameters.

Pipe Inlet Pressure *

kPag

Pipe ID *

mm

Pipe Roughness *

mm

Flow Rate *

m³/h

Fluid Density *

kg/m³

Fluid Viscosity *

cP

Straight Pipe Length *

m

Elevation Change

m

Positive = outlet higher than inlet. Negative = outlet lower than inlet.

Friction Factor Method

Minimum Design Velocity

m/s

Maximum Design Velocity

m/s

Maximum Allowable Pressure Drop

kPa

02

Pipe Fittings / Minor Losses

Select fittings from the Hooper 2K database and enter the required quantity.

Fitting Type

Quantity

#	Fitting Type	Quantity	K₁	K∞	K / Each	Total K	ΔP	Equivalent Length	Action
No pipe fittings selected. Use the selector above to add fittings.
TOTAL						0.00000	0.000 kPa	0.000 m

Hooper 2K Method: K = K₁/Re + K∞(1 + 1/D) D = pipe internal diameter in inches.

03

Intermediate Results

Hydraulic parameters calculated from the input conditions.

Pipe Area — m²

Flow Rate — m³/s

Velocity — m/s

Reynolds Number —

Flow Regime —

Relative Roughness —

Friction Factor — Darcy

Friction Method Colebrook-White

Dynamic Pressure — kPa

Total Fitting K —

Fitting Equivalent Length — m

Total Equivalent Length — m

04

Final Results

Overall hydraulic pressure-drop results.

Straight Pipe Pressure Drop — kPa

Fitting / Minor Loss — kPa

Elevation Pressure — kPa

TOTAL PRESSURE DROP — kPa

Liquid Velocity — m/s

PIPE OUTLET PRESSURE — kPag

05

Line Size Check

Check velocity, allowable pressure drop and outlet pressure.

Run the calculation to perform the line-size check.

06

Notes

Add project-specific design notes, assumptions or comments.

Engineering Note: This calculator is intended as a hydraulic line-sizing aid. Verify the selected pipe size, fitting coefficients, allowable velocity, pressure limits, fluid properties and applicable design code before using the calculation for final engineering design.