Index: DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamEngineIo/ConversionHelper.cs
===================================================================
diff -u -r4649 -r4771
--- DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamEngineIo/ConversionHelper.cs	(.../ConversionHelper.cs)	(revision 4649)
+++ DamClients/DamUI/trunk/src/DamClientsLibrary/Deltares.Dam.Data/DamEngineIo/ConversionHelper.cs	(.../ConversionHelper.cs)	(revision 4771)
@@ -247,6 +247,18 @@
     ///     The piping model type bligh
     /// </summary>
     public const int PipingModelTypeBligh = 0;
+    
+    /// <summary>
+    /// The piping model type Sellmeijer.
+    /// Obsolete but still present to inform the user when opening an old file with this model.
+    /// </summary>
+    public const int PipingModelTypeSellmeijer = 1;
+    
+    /// <summary>
+    /// The piping model type Sellmeijer 4 forces.
+    /// Obsolete but still present to inform the user when opening an old file with this model.
+    /// </summary>
+    public const int PipingModelTypeSellmeijer4Forces = 2;
 
     /// <summary>
     ///     The piping model type wti2017