API 7K Ubwoko bwa DU Umuyoboro wo Kunyerera Umuyoboro wo Gukora
Hariho ubwoko butatu bwuruhererekane rwa DU Umuyoboro wimyanda: DU, DUL na SDU. Bafite urwego runini rwo gukora hamwe nuburemere bworoshye. Muriyo, impapuro za SDU zifite ahantu hanini ho guhurira kuri taper n'imbaraga zo guhangana cyane. Byarakozwe kandi bikozwe ukurikije API Spec 7K Ibisobanuro byo gucukura no gutanga ibikoresho neza.
Ibipimo bya tekiniki
| Uburyo | Ingano yumubiri (in) | |||||
| 4 1/2 | 1/2 | 7 | ||||
| DP OD | DP OD | DP OD | ||||
| in | mm | in | mm | in | mm | |
| DU | 2 3/8 | 60.3 | 3/2 | 88.9 | 4 1/2 | 114.3 |
| 2 7/8 | 73 | 4 | 101.6 | 5 | 127 | |
| 3/2 | 88.9 | 4 1/2 | 114.3 | 1/2 | 139.7 | |
| 4 | 101.6 | 5 | 127 | 6 5/8 | 168.3 | |
| 4 1/2 | 114.3 | 1/2 | 139.7 | 7 | 177.8 | |
| DUL | 2 3/8 | 60.3 | 3/2 | 88.9 | 4 1/2 | 114.3 |
| 2 7/8 | 73 | 4 | 101.6 | 5 | 127 | |
| 3/2 | 88.9 | 4 1/2 | 114.3 | 1/2 | 139.7 | |
| 4 | 101.6 | 5 | 127 | 6 5/8 | 168.3 | |
| 4 1/2 | 114.3 | 1/2 | 139.7 | 7 | 177.8 | |
| SDU | 3/2 | 88.9 | 4 1/2 | 114.3 | ||
| 4 | 101.6 | 5 | 127 | |||
| 4 1/2 | 114.3 | 1/2 | 139.7 | |||
| 5 | 127 | 6 5/8 | 168.3 | |||
| 1/2 | 139.7 | 7 | 177.8 | |||
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