Drill Pipe Slips Type DU DUL SDU Slip
There are three types of DU series Rotary Slips: DU, DUL and SDU. They are with large handling range and light weight. Thereinto, SDU slips have larger contacting areas on the taper and higher resistance strength. They are designed and manufactured according to API Spec 7K Specification for drilling and well servicing equipment.
| Main Technical Parameters | |||||||
| Model | Size of Slip Bodies | 4 1/2 | |||||
| DU | DP OD | in | 2 3/8 | 2 7/8 | 3 1/2 | 4 | 4 1/2 |
| mm | 60.3 | 73.0 | 88.9 | 101.6 | 114.3 | ||
| Model | Size of Slip Bodies | 5 1/2 | |||||
| DU | DP OD | in | 3 1/2 | 4 | 4 1/2 | 5 | 5 1/2 |
| mm | 88.9 | 101.6 | 114.3 | 127 | 139.7 | ||
| Model | Size of Slip Bodies | 7 | |||||
| DU | DP OD | in | 4 1/2 | 5 | 5 1/2 | 6 5/8 | 7 |
| mm | 114.3 | 127 | 139.7 | 168.3 | 177.8 | ||
| Model | Size of Slip Bodies | 4 1/2 | |||||
| DUL | DP OD | in | 2 3/8 | 2 7/8 | 3 1/2 | 4 | 4 1/2 |
| mm | 60.3 | 73.0 | 88.9 | 101.6 | 114.3 | ||
| Model | Size of Slip Bodies | 5 1/2 | |||||
| DUL | DP OD | in | 3 1/2 | 4 | 4 1/2 | 5 | 5 1/2 |
| mm | 88.9 | 101.6 | 114.3 | 127 | 139.7 | ||
| Model | Size of Slip Bodies | 7 | |||||
| DUL | DP OD | in | 4 1/2 | 5 | 5 1/2 | 6 5/8 | 7 |
| mm | 114.3 | 127 | 139.7 | 168.3 | 177.8 | ||
| Model | Size of Slip Bodies | 4 1/2 | |||||
| SDU | DP OD | in | — | — | — | — | — |
| mm | — | — | — | — | — | ||
| Model | Size of Slip Bodies | 5 1/2 | |||||
| SDU | DP OD | in | 2 3/8 | 2 7/8 | 3 1/2 | 4 | 4 1/2 |
| mm | 60.3 | 73.0 | 88.9 | 101.6 | 114.3 | ||
| Model | Size of Slip Bodies | 7 | |||||
| SDU | DP OD | in | 4 1/2 | 5 | 5 1/2 | 6 5/8 | 7 |
| mm | 114.3 | 127 | 139.7 | 168.3 | 177.8 | ||
