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ansi 3d bend to ansi b16.9 dim
does ansi b16.9 explicitly state geometry of 3d bends, ie. shall nominal or outer diameter apply to the bending radius? or must this be specified by the buyer? i would be happy if a possible explicit statement of this could be referred to.
regards, espen
find a job or post a job opening
hello,
regarding elbow fittings, ansi /asme standard b16.9 specifies only welding elbows of 1.0 r and 1.5 r. the bend radius is based upon nominal pipe size, not actual pipe od. i am not aware of any ansi standard for other types of multiple radius pipe bends.
regards, john.
espen,
3d bends are governed by the rules contained in asme b31.1/31.3.
there is also an old recommended industry guideline by the piping fabrication institure (pfi) that governs all types of bends for many thickness of piping

2009-09-05, 03:41 PM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	ansi 9standards0 code issues - 3d bend to ansi b16.9 dim ansi 3d bend to ansi b16.9 dim does ansi b16.9 explicitly state geometry of 3d bends, ie. shall nominal or outer diameter apply to the bending radius? or must this be specified by the buyer? i would be happy if a possible explicit statement of this could be referred to. regards, espen find a job or post a job opening hello, regarding elbow fittings, ansi /asme standard b16.9 specifies only welding elbows of 1.0 r and 1.5 r. the bend radius is based upon nominal pipe size, not actual pipe od. i am not aware of any ansi standard for other types of multiple radius pipe bends. regards, john. espen, 3d bends are governed by the rules contained in asme b31.1/31.3. there is also an old recommended industry guideline by the piping fabrication institure (pfi) that governs all types of bends for many thickness of piping __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]