Savings calculator ====================

Values are displayed rounded for better readability. Calculations are performed with exact values.

Pipe dimension

Volume per meter

litre/m

Total length of pipe in the line

Total volume in the line

litre

Product weight per volume

kg/litre

Total weight in the line

Residual in pipe without pigging

40% 50% 60% 70% 80%

### Typical residual amounts

Product type / Viscosity	Typical recovery during purging	Residual in pipe	Remarks
Very low viscosity (e.g. water, alcohol)	50–60%	40–50%	Higher flow effects, but little separation; much film remains
Medium viscosity (e.g. oils, syrups)	30–50%	50–70%	Significant adhesion; air/N₂ wedge pushes product only incompletely
High viscosity (e.g. chocolate, cream, pastes)	20–40%	60–80%	Media remain strongly adhesive; purging extremely inefficient
Foaming products	20–40%	60–80%	Foam prevents effective emptying
Products containing particles	20–40%	60–80%	Solids also settle

Product price per kilogram

€/kg

Product savings each use

€

Waste treatment & disposal cost per kilogram

€/kg

Waste treatment cost savings

€

Total cost savings each use

€

Pigging runs per week

Production weeks per year

Total savings after 1 year

€

### ROI / Payback

Estimated investment cost

€

Monthly savings

€

Payback period

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