Puyang Zhongshi Group Co., Ltd.
Puyang Zhongshi Group Co., Ltd.
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Hinged Non-Weld Bow Spring Centralizer
Non-welded bow-spring centralizers centralize casing or tubing in the wellbore during running and cementing operations.
The elasticity of the centralizer gives it a capability to be run through tight spots. Non-welded bow spring centralizers are
available in several bow heights and sizes to ensure optimum restoring force and provide in a variety of bow configurations
for special applications.
| Model | Max.Out-Dia | Hooping In-Dia. | Total length | Amount of spring |
| (in) | (mm) | (mm) | (mm) | (mm) |
| 5-1/2" x 8-1/2" | 225±5 | 142-148 | 650±50 | 5 |
| 7" x 9-5/8" | 255±5 | 181-186 | 650±50 | 6 |
| 7" x 8-1/2" | 235±5 | 181-186 | 650±50 | 6 |
| 8-5/8 x 12-1/4" | 330±5 | 223-228 | 650±50 | 8 |
| 9-5/8 x 12-1/4" | 330±5 | 250-255 | 650±50 | 8 |
| 10-3/4 x 12-1/4" | 330±5 | 274-276 | 650±50 | 9 |
| 13-3/8"x17-1/2" | 450±5 | 342-347 | 650±50 | 11 |
| 18-5/8"x24" | 610±5 | 475-477 | 600±50 | 12 |
| 20"x26" | 660±5 | 509-511 | 600±50 | 12 |
