CAD deformation when loading into Fluent meshing from SpaceClaim

[Dato]

Hello everyone,

I'm modifying a CAD in SpaceClaim and loading it into Fluentmeshing with FTM workflow. The model is helical pipes. The models visualize well in SpaceClaim but it deform when loading into Fluentmeshing.

I'm puzzled. I have tried check the geometry and repair the topology in SpaceClaim. But it doesn't work. 

The comparison of model in SpaceClaim and Fluentmeshing is shown. 

Anyone can give me some advice? 

Thanks you a lot !