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Drill Pipe Slip Type DU
There are three types of DU Series Rotary Slips: DU, DUL and SDU. They are with large handling range and light weight. Thereinto, these slips have larger contact area on the taper and heat-treated for strength and wear resistance. They are designed and manufactured according to API Spec 7K.
|
Model |
Size of Slip bodies |
41/2 |
|||||
|
DU |
DP OD |
in |
23/8 |
27/8 |
31/2 |
4 |
41/2 |
|
mm |
60.3 |
73.0 |
88.9 |
101.6 |
114.3 |
||
|
DUL |
DP OD |
in |
23/8 |
27/8 |
31/2 |
4 |
41/2 |
|
mm |
60.3 |
73.0 |
88.9 |
101.6 |
114.3 |
||
|
SDU |
DP OD |
in |
— |
— |
— |
— |
— |
|
mm |
— |
— |
— |
— |
— |
||
|
Model |
Size of Slip bodies |
51/2 |
|||||
|
DU |
DP OD |
in |
31/2 |
4 |
41/2 |
5 |
51/2 |
|
mm |
88.9 |
101.6 |
114.3 |
127 |
139.7 |
||
|
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 |
||
|
SDU |
DP OD |
in |
31/2 |
4 |
41/2 |
5 |
51/2 |
|
mm |
88.9 |
101.6 |
114.3 |
127 |
139.7 |
||
|
Model |
Size of Slip bodies |
7 |
|||||
|
DU |
DP OD |
in |
41/2 |
5 |
51/2 |
65/8 |
7 |
|
mm |
114.3 |
127 |
139.7 |
168.3 |
177.8 |
||
|
DUL |
DP OD |
in |
— |
— |
— |
— |
— |
|
mm |
— |
— |
— |
— |
— |
||
|
SDU |
DP OD |
in |
41/2 |
5 |
51/2 |
65/8 |
7 |
|
mm |
114.3 |
127 |
139.7 |
168.3 |
177.8 |
||
