Hi all, i was wondering why do we use swept and mitre bends instead of just normal elbows? The change in radius in swept bends can increase or decrease the pressure depending on the orientation. I understand that it can be used to connect pipes in different sizes. But why do it at a bend (flow will be disturbed by both the bend and the change in radius)? Wouldn't it be better to just use a reducer or something? And for mitre bends, i don't understand why one would even use it? What benefits does it give? Because it does the same thing as elbow, and worse of all, it have a shape 'kink' at the corner which disturbs the flow? So why use it?? Thanks all!