管件尺寸偏差规定
发布时间:2019/12/06
ANSI/ASME B16.9
所有管件 | 弯头、三通 | 异径管、搭接 | 管帽 | 180度回转管 | 搭接 | |||||||
公称尺寸 | 坡口处外径 | 端面处内径 | 壁厚 | 中心至端面尺寸 | 全长 | 全高 | 中心至中心尺寸 | 顶端至端面尺寸 | 端面平面度 | 搭接外径 | 搭接厚度 | 搭接圆角半径 |
(in) | D | t | A、B、C、M | F、H | E | O | K | U | G | T | R | |
1/2to21/2 | +1.52,-0.76 | 0.76 | Not Less Than 87.5% of Nominal Thickness不小于公称壁厚的87.5% | 1.52 | 1.52 | 3.05 | 6.35 | 6.35 | 0.76 | +0,-0.76 | +1.52,-0 | +0,-0.76 |
3to31/3 | 1.52 | 1.52 | 1.52 | 1.52 | 3.05 | 6.35 | 6.35 | 0.76 | +0,-0.76 | +1.52,-0 | +0,-0.76 | |
4 | 1.52 | 1.52 | 1.52 | 1.52 | 3.05 | 6.35 | 6.35 | 0.76 | +0,-0.76 | +1.52,-0 | +0,-1.52 | |
5to8 | +2.29,-1.52 | 1.52 | 1.52 | 1.52 | 6.35 | 6.35 | 6.35 | 0.76 | +0,-0.76 | +1.52,-0 | +0,-1.52 | |
10to18 | +4.06,-3.05 | 3.05 | 2.29 | 2.29 | 6.35 | 9.65 | 6.35 | 1.52 | +0,-1.52 | +1.52,-0 | +0,-1.52 | |
20to24 | +6.35,-4.83 | 4.83 | 2.29 | 2.29 | 6.35 | 9.65 | 6.35 | 1.52 | +0,-1.52 | +1.52,-0 | +0,-1.52 | |
26to30 | +6.35,-4.83 | 4.83 | 3.05 | 4.83 | 9.65 | |||||||
32to36 | +6.35,-4.83 | 4.83 | 4.83 | 4.83 | 9.65 |