As we known in the pipe fitting and elbow standard , the butt welding elbows commonly are 45°,90°,180°. But in the projects, sometimes the engineer or designer may use the elbows which degree are not the standard degree, such as 60°, 70°or others. with such elbows,,the flow direction in the piping system can be designed as per they need .
The custom degree elbows can be manufactured directly from the production design, also can be cut from a standard elbow. for example, the cut the 70 degree elbows from a 90 degree one .
A pipe elbow is one kind of pipe fittings which can change the liquid or gas flowing direction in a piping system. It is mainly used to connect two pipes,sometimes called a “quarter bend”.