API Standard Single Bow Spring Centralizer for Casings:
Top-grade centralizers are crafted from a unique alloy steel and undergo a meticulous hot forming process within a controlled heat treatment facility. This ensures uniform hardness throughout the centralizer.
The specifications and performance standards of bow spring casing centralizers comply with API Spec 10D, guaranteeing their quality and meeting industry requirements.
As for woven centralizers, they are connected using pins during operation. When not in use, these centralizers can be flattened and stacked for easy storage and transportation. This feature provides convenience and efficiency in handling and transporting the centralizers.
API Standard Single Bow Spring Centralizer for Casings character:
1) The bow springs are manufactured from spring steel, which undergoes heat treatment and tempering to ensure proper and consistent spring characteristics.
2) The end collar hinges are folded inward. This design minimizes collar stretching that often occurs when centralizers encounter tapers, particularly in specific types of pipe connections.
3) The end collar features a reinforcing rib that is stamped into it. This rib provides added strength and helps maintain the collar's round shape during transportation.
4) Multiple bow heights are available for the centralizers to accommodate various casing-to-hole configurations.
5) Centralizers with built-in stop devices, as well as uncommon sizes, are available upon request. Customers can specify their specific requirements for these special centralizers.
Casing sentralizer specifications:
| Model (in) | Hooping In-Dia. (mm) | Hooping thickness (mm) | Total length (mm) | Max.Out-Di (mm) | Amount of spring (mm) |
| 5-1/2" x 8-1/2" | 142-148 | 3-5 | 650±50 | 225±5 | 5 |
| 7" x 9-5/8" | 181-186 | 3-5 | 650±50 | 255±5 | 6 |
| 7" x 8-1/2" | 181-186 | 3-5 | 650±50 | 235±5 | 6 |
| 8-5/8 x 12-1/4" | 223-228 | 3-5 | 650±50 | 330±5 | 8 |
| 9-5/8 x 12-1/4" | 250-255 | 3-5 | 650±50 | 330±5 | 8 |
| 10-3/4 x 12-1/4" | 274-276 | 3-5 | 650±50 | 330±5 | 9 |
| 13-3/8"x17-1/2" | 342-347 | 3-5 | 650±50 | 450±5 | 11 |
| 18-5/8"x24" | 475-477 | 3-5 | 600±50 | 610±5 | 12 |
| 20"x26" | 509-511 | 3-5 | 600±50 | 660±5 | 12 |
Company Information
Puyang Zhongshi Group Co., Ltd is a professional manufacturer of various oilfield equipments and cementing accessories since 1997, restructured enterprise of SINOPEC. Our group have 10 years export experience and 9 subsidiary factories, more than 500 employees. We are the first-class supplier of resources market of SINOPEC and CNPC.
We have the certificates of API 5CT, API 10D, API 11E, API 6A, API 11AX, ISO 9001 and ISO 14001. Our foreign customers are mainly from America, Central Asia, Russia, Southeast Asia, Middle East, etc.
