.TransiEnt.Components.Gas.VolumesValvesFittings.Valves.ValveRealGas_L1.PressureLoss .TransiEnt.Components.Gas.VolumesValvesFittings.Valves.ValveRealGas_L1.PressureLossmodel PressureLoss = ClaRa.Components.VolumesValvesFittings.Valves.Fundamentals.Quadratic_EN60534_compressible;