hows the actual delivery capacity with consideration of the complete installation. This is where the vertical intake height must be overcome, friction losses in the lines, direction changes, cross-section changes, fittings, etc. are determined and
are identified as required pressure demands in mwc (meters water column) or bar. This means that if the entire loss, for example, is 4 mwc*, the actual delivery capacity of the system is 4000 litres* per hour.
* Sample values