.TransiEnt.Components.Gas.VolumesValvesFittings.Base.VolumeRealGas_L4.PressureLoss .TransiEnt.Components.Gas.VolumesValvesFittings.Base.VolumeRealGas_L4.PressureLossmodel PressureLoss = ClaRa.Basics.ControlVolumes.Fundamentals.PressureLoss.Generic_PL.LinearPressureLoss_L4;