Description: the optimum volume flow at the highest efficiency point; Name: Optimum flow capacity
Description: Rate of flow at the point of best efficiency; Name: Optimum rate of flow
Description: a group of construction elements with the same construction features and the same construction, which can be collated for the construction type approval and quality conformity controls as a result of similar manufacturing methods. they are generally allocated to a construction type specification. Note: in certain cases, construction element from different construction type specifications can be viewed as belonging to the same type and hence collated for the construction type approval and quality conformity controls; Name: Construction type