npt螺纹尺寸表【免费下载】
ＺＧ５５°（ＲＣ）园锥管螺纹 | ||||||
公称通径 | 每寸牙数 | 外螺纹顶圆 | 内螺纹口径 | 有效牙长 | 加工牙长 | |
1/4″ | 8 | 19 | 12.7 | 11.2 | 9.7 | 14 |
3/8 | 10 | 19 | 16.1 | 14.5 | 10.1 | 15 |
1/2 | 15 | 14 | 20.3 | 18.8 | 13.2 | 18 |
3/4 | 20 | 14 | 25.7 | 24.2 | 14.5 | 19 |
1 | 25 | 11 | 32.4 | 30.4 | 16.8 | 24 |
1-1/4 | 32 | 11 | 41 | 39 | 19.1 | 25 |
1-1/2 | 40 | 11 | 46.9 | 45 | 19.1 | 26 |
2 | 50 | 11 | 58.5 | 56.8 | 23.4 | 26 |
2-1/2 | 65 | 11 | 74.7 | 72.4 | 26.7 | 36 |
3 | 80 | 11 | 86.5 | 85.1 | 29.8 | 40 |
4 | 100 | 11 | 111.3 | 110.3 | 35.8 | 43 |
5 | 125 | 11 | 135.6 | 135.6 | 40.1 | 50 |
6 | 150 | 11 | 161.5 | 161 | 40.1 | 55 |
Ｋ６０°（ＮＰＴ）园锥管螺纹 | |||||
公称通径 | 每寸牙数 | 外螺纹顶/外顶圆 | 内螺纹口径/内基圆 | 有效牙长 | 加工牙长 |
NPS | |||||
1/4″ | 18 | 13.2-0.2 | 11.4+0.2 | 10.2 | 14 |
3/8 | 18 | 16.6-0.2 | 14.8+0.2 | 10.4 | 15 |
1/2 | 14 | 20.7-0.2 | 18.5+0.2 | 13.6 | 18 |
3/4 | 14 | 26-0.3 | 23.7+0.2 | 13.7 | 19 |
1 | 11.5 | 32.6-0.3 | 29.7+0.2 | 17.4 | 23 |
1-1/4 | 11.5 | 41.3-0.3 | 38.5+0.3 | 18 | 26 |
1-1/2 | 11.5 | 47.4-0.3 | 44.5+0.3 | 18.4 | 26 |
2 | 11.5 | 59.4-0.3 | 56.6+0.3 | 19.2 | 30 |
2-1/2 | 8 | 71.6-0.4 | 67.6+0.3 | 28.9 | 33 |
3 | 8 | 87.4-0.4 | 83.5+0.4 | 30.5 | 37 |
4 | 8 | 112.6-0.5 | 108.9+0.4 | 33 | 43 |
5 | 8 | 139.4-0.5 | 135.9+0.4 | 35.7 | 50 |
6 | 8 | 166.2-0.5 | 162.7+0.4 | 38.4 | 55 |
8 | 8 | 216-0.5 |
| 60 |
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Ｇ（５５°）园柱管螺纹 | |||
公称通径 | 每寸牙数 | 外径 | 内径 |
1/4 | 19 | 13.15 | 11.45 |
3/8 | 19 | 16.66 | 14.95 |
1/2 | 14 | 20.95 | 18.63 |
3/4 | 14 | 26.44 | 24.32 |
1 | 11 | 33.25 | 30.29 |
1-1/4 | 11 | 41.91 | 38.95 |
1-1/2 | 11 | 47.8 | 44.8 |
2 | 11 | 59.6 | 56.66 |
2-1/2 | 11 | 75.18 | 72.22 |
3 | 11 | 87.88 | 84.92 |
4 | 11 | 113.1 | 110 |
5 | 11 | 138.4 | 135.4 |
6 | 11 | 163.8 | 160.8 |
