Those parts that are not needed for a CFD simulation will be cleaned now.
You can just hide them. And later export just visible parts of the model.
To pre-process the valve model, only the Shell_10 (shell that represents valve body) is needed.
Hide all the shells but the Shell_10
NOTE: Hiding manually many other shells may be annoying. By clicking right mouse button on the Shell_10 you can select an option Show Only.
Now Shell_10 can be split (exploded) into individual faces using the same procedure which was used when splitting original Globe Valvess model.
Shell_10 > New entity > Explode This time the Main Object is Shell_10 and Sub-shapes Type is automatically set to Face. After confirming the operation Shell_10 is exploded into 255 faces.
The surface model is now split into the faces (basic elements).
Now hide all the unimportant faces by selecting and clicking right mouse button and select hide. Those are all those faces, who are not in contact with fluid flow.
NOTE: To select multiple faces keep pressed shift key while selecting them.
Keep hiding faces until all the faces which are not needed for your CFD simulation are hidden.
In the figure you can see the partial state of hiding unimportant faces
In the figure you can see only the important faces – faces that are in the contact with the fluid flow
Figure: Some faces are already hidden
Figure: Valve Body, hiding (cleaning) process finished