1. Y-shaped bend
•Creates inner cosmetic thread on pipe
•Creates outer cosmetic thread on pipe
•Divides pipe segment into two segments
•Divides pipeline into more than two segments
•Modifies pipe diameter from larger to smaller and back
•Cuts edge for weld
•Inserted in the middle of pipe segment
•Inserted on pipe ends
•Inserted on pipe rounds
•Inserted on pipe corners
•Interaction with a single pipe
•Interacts several pipes
•Interacts other fittings
•Interacts intersecting branches of pipeline
2. Adapter
•Creates inner cosmetic thread on pipe
•Creates outer cosmetic thread on pipe
•Divides pipe segment into two segments
•Modifies pipe diameter from larger to smaller and back
•Inserted on pipe ends
•Inserted in the middle of pipe segment
•Interaction with a single pipe
•Interacts several pipes
•Interacts other fittings
•Interacts with parallel branches of pipeline
•Makes the flaring of pipe/tube/hose
3. Branch
•Creates a hole in pipe
•Cuts edge for weld
•Inserted in the middle of pipe segment
•Interaction with a single pipe
•Interacts with several pipes
•Interacts intersecting branches of pipeline
4. Bushing
•Creates inner thread on pipe
•Creates outer cosmetic thread on pipe
•Divides pipe segment into two segments
•Modifies pipe diameter from larger to smaller and back
•Cuts edge for weld
•Inserted on pipe ends
•Inserted in the middle of pipe segment
5. Lock nut
•Creates outer cosmetic thread on pipe
•Inserted in the middle of pipe segment
•Interaction with a single pipe
6. Set-off pipe bend
•Creates inner thread on pipe
•Creates outer cosmetic thread on pipe
•Cuts edge for weld
•Inserted on pipe ends
•Cuts second part of pipe
•Modifies pipe diameter from larger to smaller and back
•Cuts edge for weld
•Inserted in the middle of pipe segment
•Interaction with a single pipe
•Interacts with several pipes
•Interacts with parallel branches of pipeline
•Interacts other fittings
7. Valve
•Creates inner thread on pipe
•Creates outer cosmetic thread on pipe
•Divides pipe segment into two segments
•Cuts second part of pipe
•Modifies pipe diameter from larger to smaller and back
•Cuts edge for weld
•Inserted on pipe ends
•Inserted in the middle of pipe segment
•Interaction with a single pipe
•Interacts with several pipes
•Interacts other fittings
•Interacts intersecting branches of pipeline
8. Bend
•Creates inner thread on pipe
•Creates outer cosmetic thread on pipe
•Divides pipe segment into two segments
•Cuts second part of pipe
•Modifies pipe diameter from larger to smaller and back
•Cuts edge for weld
•Inserted on pipe rounds
•Inserted on pipe corners
•Inserted in the middle of pipe segment
•Interaction with a single pipe
•Interacts with several pipes
•Interacts other fittings
•Interacts intersecting branches of pipeline
9. Crossing
•Creates inner thread on pipe
•Creates outer cosmetic thread on pipe
•Divides pipe segment into two segments
•Cuts second part of pipe
•Modifies pipe diameter from larger to smaller and back
•Cuts edge for weld
•Inserted on pipe ends
•Inserted in the middle of pipe segment
•Interaction with a single pipe
•Interacts with several pipes
•Interacts other fittings
•Interacts intersecting branches of pipeline
10. Coupling
•Creates inner thread on pipe
•Creates outer cosmetic thread on pipe
•Divides pipe segment into two segments
•Modifies pipe diameter from larger to smaller and back
•Inserted on pipe ends
•Inserted in the middle of pipe segment
•Interaction with a single pipe
•Interacts with several pipes
•Interacts other fittings
11. Cap
•Creates inner thread on pipe
•Creates outer cosmetic thread on pipe
•Cuts second part of pipe
•Inserted on pipe ends
•Interaction with a single pipe
•Interacts other fittings
12. Pipe clamp
•Changes geometry of the 3D path
•Interacts with several pipes
•Interacts intersecting branches of pipeline
•Interacts with parallel branches of pipeline
•Interacts intersecting branches of pipeline
13. Reducer
•Creates inner thread on pipe
•Creates outer cosmetic thread on pipe
•Divides pipe segment into two segments
•Modifies pipe diameter from larger to smaller and back
•Cuts edge for weld
•Inserted on pipe ends
•Inserted in the middle of pipe segment
•Interaction with a single pipe
•Interacts with several pipes
14. Tee
•Creates inner thread on pipe
•Creates outer cosmetic thread on pipe
•Divides pipe segment into two segments
•Cuts second part of pipe
•Modifies pipe diameter from larger to smaller and back
•Cuts edge for weld
•Inserted on pipe ends
•Inserted on pipe rounds
•Inserted on pipe corners
•Inserted in the middle of pipe segment
•Interaction with a single pipe
•Interacts with several pipes
•Interacts other fittings
•Interacts intersecting branches of pipeline
15. Seal
•Interacts other fittings
16. Flange
•Divides pipe segment into two segments
•Inserted on pipe ends
•Inserted in the middle of pipe segment
•Interaction with a single pipe
•Interacts other fittings
17. Pipe housing
•Inserted in the middle of pipe segment
•Interaction with a single pipe
•Inserted on pipe rounds
•Inserted on pipe corners
•Interacts with several pipes
•Interacts with parallel branches of pipeline
•Interacts other fittings
18. Compensator
•Divides pipe segment into two sections
•Cuts edge for weld
•Interaction with a single pipe
•Inserted on pipe ends
•Inserted in the middle of pipe section
•Interacts other fittings