Change pipe type (Pipes and pipe Fittings)

Revit
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1

Hi,
Actually i have some pipe types in current project. i have modeled with pipe type as Drainage and i want change to pipe type as Water (some network). i have developed script but im facing the issue. could please any one can help this…

Pipe Type in current model
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Script snap

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image1421×759 109 KB

Thanks

2

Bro. i think you are trying to change the family type of the element.
can you try with this node.

image

3

Bro,
i have tried its not worked. the intern is i want to change the Pipe Type in entire network.
inside of doing revit manually image. I’m developing dynamo program.

Thanks…