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The sucker rod centralizer is a supporting tool designed to decrease the pumping energy loss, increase the pumping efficiency, prevent the eccentric wear of sucker rod and protect the tubing. When the centralizer is used, connect it to the fray of sucker rod, with which the sucker rod is replaced to connect the rod string.
Features
1. Protect the tubing and the sucker rod coupling from high wear.
2. Clean sucker rod and tubing from asphaltene-pitch-paraffin deposits.
3. Stabilizes rod string.
4. Eliminates or reduces tubing wear.
Technical Parameters
| Specification and type | MaxOD(mm) | Centralizer length (mm) | Centralizer sleeve length (mm) | Suitable casing ID (mm) | Working temperature(℉) | Material quality | HRB | Fatigue life number | |
| Basic size | Limit deviation | ||||||||
| FZ46X3/4ZZ | 46 | ±0.13 | 320 | 100 | 50 | ≤2200 | 35CrMo | 257-283 | 107 |
| 330 | |||||||||
| 340 | |||||||||
| FZ46X15/16ZZ | 58 | ±0.15 | 330 | 62 | |||||
| 340 | |||||||||
| FZ46X11/16ZZ | 58 | 350 | |||||||
| FZ46X13/16ZZ | 70 | ±0.15 | 330 | 76 | |||||
| 340 | |||||||||
| FZ46X15/16ZZ | 350 | ||||||||
| FZ46X13/8ZZ | 360 | ||||||||
| FZ46X19/16ZZ | 370 | ||||||||
* Other sizes and connections available on request