diff --git a/src/BRepFill/BRepFill_PipeShell.cdl b/src/BRepFill/BRepFill_PipeShell.cdl
index fdb4abaf17..f75a5e6ce2 100644
--- a/src/BRepFill/BRepFill_PipeShell.cdl
+++ b/src/BRepFill/BRepFill_PipeShell.cdl
@@ -117,6 +117,19 @@ is
 
         ---Level: Public
 
+
+--  ============================================
+--  Methods to set parameters for approximation
+--  ============================================
+    SetMaxDegree(me  :  mutable; 
+    	         NewMaxDegree : Integer  from  Standard);
+    ---Purpose: Define the maximum V degree of resulting surface  
+		 
+    SetMaxSegments(me  :  mutable; 
+    	           NewMaxSegments : Integer  from  Standard);
+    ---Purpose: Define the maximum number of spans in V-direction
+    --          on resulting surface
+		 
     SetForceApproxC1(me  :  mutable;
     	    	     ForceApproxC1 : Boolean from Standard);
 	---Purpose: Set the flag that indicates attempt to approximate
@@ -291,6 +304,8 @@ fields
   myBoundTol    :  Real;  
   myTolAngular  :  Real;
   angmin,  angmax  :  Real; 
+  myMaxDegree   :  Integer;
+  myMaxSegments :  Integer;
   myForceApproxC1 : Boolean;
   
   myLaw         :  Function         from  Law;    
diff --git a/src/BRepFill/BRepFill_PipeShell.cxx b/src/BRepFill/BRepFill_PipeShell.cxx
index a444f9698f..08ad18b50a 100644
--- a/src/BRepFill/BRepFill_PipeShell.cxx
+++ b/src/BRepFill/BRepFill_PipeShell.cxx
@@ -226,6 +226,9 @@ BRepFill_PipeShell::BRepFill_PipeShell(const TopoDS_Wire& Spine)
   myLaw.Nullify();
   SetTolerance();
 
+  myMaxDegree = 11;
+  myMaxSegments = 30;
+
   // Attention to closed non-declared wire !
   if (!mySpine.Closed()) {
     TopoDS_Vertex Vf, Vl;
@@ -414,6 +417,25 @@ BRepFill_PipeShell::BRepFill_PipeShell(const TopoDS_Wire& Spine)
   mySection.Nullify(); //It is required to relocalize the sections.
 }
 
+
+//=======================================================================
+//function : SetMaxDegree
+//purpose  : 
+//=======================================================================
+void BRepFill_PipeShell::SetMaxDegree(const Standard_Integer NewMaxDegree)
+{
+  myMaxDegree = NewMaxDegree;
+}
+
+//=======================================================================
+//function : SetMaxSegments
+//purpose  : 
+//=======================================================================
+void BRepFill_PipeShell::SetMaxSegments(const Standard_Integer NewMaxSegments)
+{
+  myMaxSegments = NewMaxSegments;
+}
+
 //=======================================================================
 //function : SetForceApproxC1
 //purpose  : Set the flag that indicates attempt to approximate
diff --git a/src/BRepOffsetAPI/BRepOffsetAPI_MakePipeShell.cdl b/src/BRepOffsetAPI/BRepOffsetAPI_MakePipeShell.cdl
index 3e9423476b..738fdfdafa 100644
--- a/src/BRepOffsetAPI/BRepOffsetAPI_MakePipeShell.cdl
+++ b/src/BRepOffsetAPI/BRepOffsetAPI_MakePipeShell.cdl
@@ -221,6 +221,20 @@ is
     	-- - boundary tolerance BoundTol
     	-- - angular tolerance TolAngular.
         
+        
+        
+--  ============================================
+--  Methods to set parameters for approximation
+--  ============================================
+    SetMaxDegree(me  :  in  out; 
+    	         NewMaxDegree : Integer  from  Standard);
+    ---Purpose: Define the maximum V degree of resulting surface  
+		 
+    SetMaxSegments(me  :  in  out; 
+    	           NewMaxSegments : Integer  from  Standard);
+    ---Purpose: Define the maximum number of spans in V-direction
+    --          on resulting surface
+		 
     SetForceApproxC1(me  :  in  out;
     	    	     ForceApproxC1 : Boolean from Standard);
 	---Purpose: Set the flag that indicates attempt to approximate
diff --git a/src/BRepOffsetAPI/BRepOffsetAPI_MakePipeShell.cxx b/src/BRepOffsetAPI/BRepOffsetAPI_MakePipeShell.cxx
index 9171f281c2..7ca936527f 100644
--- a/src/BRepOffsetAPI/BRepOffsetAPI_MakePipeShell.cxx
+++ b/src/BRepOffsetAPI/BRepOffsetAPI_MakePipeShell.cxx
@@ -200,6 +200,24 @@ void BRepOffsetAPI_MakePipeShell::Delete( const TopoDS_Shape& Profile)
  myPipe->SetTolerance(Tol3d, BoundTol, TolAngular);
 }
 
+//=======================================================================
+//function : SetMaxDegree
+//purpose  : 
+//=======================================================================
+void BRepOffsetAPI_MakePipeShell::SetMaxDegree(const Standard_Integer NewMaxDegree)
+{
+  myPipe->SetMaxDegree(NewMaxDegree);
+}
+
+//=======================================================================
+//function : SetMaxSegments
+//purpose  : 
+//=======================================================================
+void BRepOffsetAPI_MakePipeShell::SetMaxSegments(const Standard_Integer NewMaxSegments)
+{
+  myPipe->SetMaxSegments(NewMaxSegments);
+}
+
 //=======================================================================
 //function : SetForceApproxC1
 //purpose  : Set the flag that indicates attempt to approximate