 |  |  | | Threaded Outlet | | Threaded Outlet | | | |
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| 执行标准：MSS SP-97、GB19326、Q/FG12 |
支管公称通径
Nominal Diameter of Branch | 适用主管公称通径 Nominal Diameter of Suited Main Pipe 不小于≥ | L | E | | DN | NPS | mm | in | 3000LB | 6000LB | 3000LB | 6000LB | 6 | 1/8 | 20 | 3/4 | 19.1 | - | 15.9 | - | 8 | 1/4 | 20 | 3/4 | 19.1 | - | 15.9 | - | 10 | 3/8 | 25 | 1 | 20.6 | - | 19.1 | - | 15 | 1/2 | 32 | 1.1/4 | 25.4 | 31.8 | 23.8 | 19.1 | 20 | 3/4 | 40 | 1.1/2 | 27.0 | 36.5 | 30.2 | 25.4 | 25 | 1 | 50 | 2 | 33.3 | 39.7 | 36.5 | 33.3 | 32 | 1.1/4 | 65 | 2.1/2 | 33.3 | 41.3 | 44.5 | 38.1 | 40 | 1.1/2 | 65 | 2.1/2 | 34.9 | 42.9 | 50.8 | 49.2 | 50 | 2 | 80 | 3 | 38.1 | 52.4 | 65.1 | 69.9 | 60 | 2.1/2 | 100 | 4 | 46.0 | - | 76.2 | - | 80 | 3 | 125 | 5 | 50.8 | - | 93.7 | - | 100 | 4 | 150 | 6 | 57.2 | - | 120.7 | - |
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| 说明： |
| 1、锥管螺纹可按ANSI B1.20.1 NPT或ISO7/1Rp或Rc锥管螺纹，尺寸同支管公称通径(in)用户需注明锥管螺纹代号。 |
| 2、表列“适用主管公称直径”为一般用途，如需用于更小的主管尺寸应与制造厂协商。 |
| 3、按下表选用支管台的压力等级： |
压力等级
Pressure Grade | 适用支管壁厚等级
Suitable shedule of branch | 3000Lb | Sch40、 Sch80、 STD、 XS | 6000Lb | Sch160 XXS |
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| 4、螺纹支管台仅适用于国际通用系列的钢管（英制管）。 |
5、定货时必须注明主管及支管支管公称尺寸、压力等级、材料牌号、螺纹代号。
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