The so-called pipe fittings logo, which is a kind of pipe fittings of a species, we must know which parameters can be uniquely determined, the characteristics of this pipe fittings. Generally speaking. Must know the following parameters:
"'' category (elbow but also know the angle, bending radius; size of the head and need to know is concentric or eccentric)
Material
path and control the size (in nominal diameter that must be recognized metric or imperial),
pipe wall thickness or grade.
"'' standard number (sometimes in the standard number, add A or B, said pipe system for the imperial or metric)
For example: 45 elbow R = 1.5D, 304L, DN100, SCH20, GB12459B
Eccentric head, 20 #, DN150B STD ANSI B16.9
Three 316TI 610 * 168 * 4 GB/T13401
Course, production planning, order, inquiry must also know the number.
