90 degree elbow is butt welded fitting in the kind of lobster back. 90 elbow is
produced conforming to DIN16963 with thickness based on ISO4427, EN12201,
AS4130/4131, etc.
In Design, the allowable working pressure of butt-welded
fitting is 0.8 times of the allowable working pressure of pipe (DIN16963).
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90 Elbow |