diff --git a/TBF/BenchControl/OutputPath.cs b/TBF/BenchControl/OutputPath.cs
index d5afc7317..dffeb6fa4 100644
--- a/TBF/BenchControl/OutputPath.cs
+++ b/TBF/BenchControl/OutputPath.cs
@@ -53,7 +53,14 @@ namespace TBF.BenchControl
 			Diverter = (IDiverter)TbfComponents.FindComponent(entity.Diverter, components);
 			TempDiv = (ITempMeter)TbfComponents.FindComponent(entity.TempDiv, components);
 			Scale = (IScaleOrTank)TbfComponents.FindComponent(entity.Scale, components);
-            RegulValvesPct = string.IsNullOrEmpty(entity.RegulValvesPct) ? new float[0] : Utils.GetRegulValvesPositions(entity.RegulValvesPct);
+
+            int regvCount = 0;
+            foreach (var cmpnt in components)
+            {
+                if ((cmpnt is IRegulValve) && !(cmpnt is BenchControl.Elde.RegulValveTandem.RegulValveTandem)) regvCount++;
+            }
+            RegulValvesPct = string.IsNullOrEmpty(entity.RegulValvesPct) ? new float[0] : Utils.GetRegulValvesPositions(entity.RegulValvesPct, regvCount);
+
             string[] svs = entity.StartValve != null ? entity.StartValve.Split(new char[] { '~' }) : new string[0];
             int iTmp;
             ///
diff --git a/TBF/BenchControl/Sequences/SequenceBase.cs b/TBF/BenchControl/Sequences/SequenceBase.cs
index a8ff0965b..c5478f0ae 100644
--- a/TBF/BenchControl/Sequences/SequenceBase.cs
+++ b/TBF/BenchControl/Sequences/SequenceBase.cs
@@ -645,7 +645,7 @@ namespace TBF.BenchControl.Sequences
                     }
 
 					/// Get regulation valve positioning operations
-                    IList<IOperation> rvPosOps = GetRegValvePositioningOps(RegulValves, Utils.GetRegulValvesPositions(step.RegulValvesPct));
+                    IList<IOperation> rvPosOps = GetRegValvePositioningOps(RegulValves, Utils.GetRegulValvesPositions(step.RegulValvesPct, RegulValves.Count));
 
                     /// Max. one SetRegulValvePositionOp can be started or stopped in one sub-step.
                     /// Therefore SetRegulValvePositionOp operations are added and removed to subsequent states one by one.
diff --git a/TBF/Utils.cs b/TBF/Utils.cs
index e9809acb0..1d4de9cfb 100644
--- a/TBF/Utils.cs
+++ b/TBF/Utils.cs
@@ -193,9 +193,8 @@ namespace TBF
 		/// </summary>
         /// <param name="entity">String from TransitionStep entity defining all RegulValve positions</param>
 		/// <returns>float[] of regulation valve positions from 0 to 100.0f</returns>
-        public static float[] GetRegulValvesPositions(string regulValvesPct)
+        public static float[] GetRegulValvesPositions(string regulValvesPct, int regvCount)
 		{
-			int regvCount = BenchControl.Sequences.SequenceBase.RegulValves.Count;
 			float[] result = new float[regvCount];
 
 			string[] rvPosStr = string.IsNullOrEmpty(regulValvesPct) ? new string[0] : regulValvesPct.Split(new char[] { ';' });