| After-sales Service: | Technical Support |
|---|---|
| Warranty: | 1 Yaer |
| Manufacturing Process: | Casting |
| Surface Treatment: | Spray-Paint |
| Operation Pressure: | Atmospheric Pressure |
| Material: | Cast Steel |
| Customization: |
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High Quality API 10d Standard Welded Bow Spring Casing Centralizer for Oilfield Pipe Fitting
Bow Spring Centralizers
Bow spring centralizers have slightly larger diameter than the wellbore, which is effective in vertical and slightly deviated wellbores to centralize the casing in borehole so as to improve the cementing efficiency.
Bow spring centralizers are available in single piece, hinged and slip-on types with or without welding process.
Adjustable bow heights and full ranges of sizes ranging from 4-1/2" to 20" can satisfy almost all cementing projects in oil and gas cementing constructions.
The starting force testing and restoring force testing of our bow spring centralizers are performed in accordance with API 10D Standards.
| Popular Specifications of Bow Spring Centralizers | ||||
| Size (inch) | Bow Quantity | Outside Diameter | Inner Diameter | Overall Length |
| 4-1/2" × 6" | 4 | 160 | 116 | 450/575 |
| 4-1/2" × 6-1/4" | 4 | 167 | 116 | 450/575 |
| 4-1/2" × 7-7/8" | 4 | 210 | 116 | 450/575 |
| 4-1/2" × 8-1/2" | 4 | 230 | 116 | 450/575 |
| 5" × 6" | 4 | 160 | 128 | 450/540 |
| 6" × 6-3/4" | 4 | 180 | 128 | 450/575 |
| 5" × 7-7/8" | 4 | 210 | 128 | 450/575 |
| 5-1/2" × 7-7/8" | 5 | 210 | 140 | 450/575 |
| 5-1/2" × 8-1/2" | 5 | 216/245 | 140 | 450/575 |
| 5-1/2" × 8-3/4" | 5 | 222/250 | 140 | 450/575 |
| 5-1/2" × 9-7/8" | 5 | 251/264 | 140 | 450/575 |
| 5-1/2" × 9-1/2" | 5 | 242/264 | 140 | 450/575 |
| 7" × 8-1/2" | 6 | 216/230 | 179 | 450/575 |
| 7" × 8-3/4" | 6 | 222/233 | 179 | 450/575 |
| 7" × 9-1/2" | 6 | 242/264 | 179 | 450/575 |
| 7" × 9-7/8" | 6 | 251/264 | 179 | 550/650 |
| 9-5/8" × 12-1/4" | 8 | 346 | 245 | 550/650 |
| 9-5/8" × 13-3/8" | 8 | 346/352 | 245 | 550/650 |
| 9-5/8" × 12-13/16" | 8 | 378 | 245 | 550/650 |
| 10-3/4" × 14-3/4" | 9 | 405 | 275 | 550/650 |
| 10-3/4" × 15-1/2" | 9 | 374 | 275 | 550/650 |
| 13-3/8" × 17-1/2" | 10 | 440/466 | 342 | 550/650 |
| 13-5/8" × 17-1/2" | 12 | 440/466 | 342 | 550/650 |
| 20" × 26" | 12 | 696 | 510 | 550/610/650 |
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