How to model pressure vessel head with nozzles in CATIA?

i was trying to make a pressure vessel in catia. i am struggling with making the head. it is a tori spherical head. of diameter 1000 mm and thickness 8 mm. And nozzle PCD 800 mm. Please teach me how to make it in catia. refer the images of head.

1 Answer

1. Sketch the profile of the head, and revolve the profile to get the head
2. Sketch the circular shape of a port/nozzle, and extrude the desired length. Repeat sketch & extrude for each port/nozzle. (alternate: sketch all ports/nozzles in one sketch, and extrude)
4. Add one hole in lip, and pattern to duplicate all around