PT及NPT螺纹直径标准
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责编:小OO
时间:2025-09-30 01:12:59
PT及NPT螺纹直径标准
PT及NPT螺纹直径标准英制JIS(PT)55°美制ASA(NPT)60°规格山数外径有效长度有效径山数外径有效长度有效径1/16287.7239.2967.432277.7710.0487.1421/82.72.2969.1472710.11610.0329.41/41913.15713.69612.3011813.42715.0412.4873/81916.66213.69618.8061816.86615.0415.9261/21420.95519.23219.7931420
导读PT及NPT螺纹直径标准英制JIS(PT)55°美制ASA(NPT)60°规格山数外径有效长度有效径山数外径有效长度有效径1/16287.7239.2967.432277.7710.0487.1421/82.72.2969.1472710.11610.0329.41/41913.15713.69612.3011813.42715.0412.4873/81916.66213.69618.8061816.86615.0415.9261/21420.95519.23219.7931420
PT及NPT螺纹直径标准 |
| 英制JIS(PT)55° | 美制ASA(NPT)60° |
规格 | 山数 | 外径 | 有效长度 | 有效径 | 山数 | 外径 | 有效长度 | 有效径 |
1/16 | 28 | 7.723 | 9.296 | 7.432 | 27 | 7.77 | 10.048 | 7.142 |
1/8 | 28 | 9.728 | 9.296 | 9.147 | 27 | 10.116 | 10.032 | 9.4 |
1/4 | 19 | 13.157 | 13.696 | 12.301 | 18 | 13.427 | 15.04 | 12.487 |
3/8 | 19 | 16.662 | 13.696 | 18.806 | 18 | 16.866 | 15.04 | 15.926 |
1/2 | 14 | 20.955 | 19.232 | 19.793 | 14 | 20.98 | 19.328 | 19.772 |
3/4 | 14 | 26.441 | 18.592 | 25.279 | 14 | 26.326 | 19.344 | 25.117 |
1 | 11 | 33.249 | 23.6 | 31.77 | 11-1/2 | 33.932 | 23.536 | 32.461 |
1-1/4 | 11 | 41.91 | 23.6 | 40.431 | 11-1/2 | 41.6 | 23.536 | 40.218 |
1-1/2 | 11 | 47.803 | 23.6 | 46.324 | 11-1/2 | 47.758 | 23.536 | 46.287 |
2 | 11 | 59.614 | 23.6 | 58.135 | 11-1/2 | 59.796 | 23.536 | 58.325 |
2-1/2 | 11 | 75.184 | 23.6 | 73.705 | 8 | 72.273 | 33.824 | 70.159 |
3 | 11 | 87.884 | 23.6 | 86.405 | 8 | 88.182 | 33.824 | 86.068 |
3-1/2 | 11 | 100.33 | 23.6 | 98.851 | 8 | 100.691 | 30. | 98.776 |
4 | 11 | 113.03 | 23.6 | 111.551 | 8 | 113.548 | 33.84 | 111.433 |
4-1/2 | 11 | 125.73 | 23.6 | 124.251 | 0 | 0 | 0 | 0 |
5 | 11 | 138.43 | 23.6 | 136.951 | 8 | 141.3 | 46.208 | 138.412 |
5-1/2 | 11 | 151.13 | 23.6 | 149.651 | 0 | 0 | 0 | 0 |
6 | 11 | 163.83 | 23.6 | 162.351 | 8 | 168.3 | 48.768 | 165.252 |
7 | 11 | 1.23 | 23.6 | 187.751 | 0 | 0 | 0 | 0 |
8 | 11 | 214.63 | 17.84 | 213.515 | 8 | 219.1 | 51.184 | 215.901 |
1:16[&=1°47′24″(1.79°)]=0.03125,2tan&=1:16, tan&=a/b, a= tan&*b, b= a/tan&,
PT及NPT螺纹直径标准
PT及NPT螺纹直径标准英制JIS(PT)55°美制ASA(NPT)60°规格山数外径有效长度有效径山数外径有效长度有效径1/16287.7239.2967.432277.7710.0487.1421/82.72.2969.1472710.11610.0329.41/41913.15713.69612.3011813.42715.0412.4873/81916.66213.69618.8061816.86615.0415.9261/21420.95519.23219.7931420