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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.
| Specification and type | MaxOD(mm) | Cenralizer length(mm) | Suitable casing ID(mm) | |
| Basic size | Limit deviation | |||
| FZ46X3/4ZZ | 46 | ±0.13 | 320 |
50 |
| 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 | |||
sucker rod centralizer
