Is there is any code for the fabricated elbow ( miter from pipe ).
48" from API 5l Gr B for water pipe line .
I want ask about there is any code states about how many segment to make 90 degree elbow and the center to face distance is it like the ASME B16.9 ( D for short elbow and 1.5D for long elbow) or there is another code for this elbow.