On carbon steel pipe fittings, sizes like 2-1/2", 5" are this size normal? Someone told me this sizes are not normal and are not being use anymore. Is this just for economic purposes? Why is this so?
Trying to find out the proper way of welding two pipes of different thickness, carbon steel sch. 40 and sch 120 or is it even possible to do such. Anyone please.
I'm on a learning process here in a petroleum refinery. I'm very new to this. Can somebody suggest a good basic book on petroleum refinery process? If there's a book on petroleum refining for non-technical people that would be a good start for me. Also a dvd tutorial , if there are any, would be...