Corresponding sizes of class 150 (aNSI B16.24) flange diameters and drilling templates are the same as those of the american Class 125 Cast Iron Flange Standard (aNSI B16.1) and of the american Class 150 Steel Flange Standard (aNSI B16.5).

• 与150磅级(美国国家标准协会 ansi B16.；24)法兰直径相对应的尺寸和钻孔模板；其大小和形状与美国125磅级铸铁法兰ansi B16