I need to calculate the friction loss in a flow loop made of 4" ID weld clad pipe. As the inner surface is not machined after cladding, anybody knows how to estimate fricton loss in such irregular surface?
I have just two bends and one gate valve, as this line must be piggable.
The clad is made...
I'm trying to choose a flange for a subsea vessel but I'm having some problems to make the best choise.
a) In subsea equipments I always go for a API 6A/17D flange, but it goes up to 30" size, so 38 inches is way to big for API flanges. And API don't address what to do for bigger flanges.
b) I...