Description: Head for the feed flow Q = 0; Name: Zero head
Description: Hoisting height for the feed flow Q = 0; Name: Zero-delivery height
Description: internal volume of a compartment, including the volume of nozzles to the first connection (flange, coupling, screwed connection, weld seam) but excluding the volume of internal structures (e. g. baffles, agitators); Name: Filling volume of the equipment