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
Premium centralizers are manufactured using a special alloy steel and undergo a meticulous hot forming process in a strictly controlled heat treatment plant. This specialized manufacturing ensures that the centralizers achieve uniform hardness throughout their structure.
The specifications and performance index of bow spring casing centralizers comply with API Spec 10D, meeting the industry standards for quality and performance.
When in use, woven centralizers are connected using pins. However, when not in use, the centralizer can be unfolded and stacked flatly, allowing for easy and convenient storage and transportation. This design feature enhances the efficiency and practicality of handling and transporting the centralizers.
API Standard Single Bow Spring Centralizer for Casings character:
1) The bow springs used in these centralizers are crafted from spring steel, which undergoes a rigorous heat treatment and tempering process. This ensures that the springs possess the necessary spring characteristics consistently and reliably.
2) The end collar hinges are designed to fold inward. This unique configuration helps minimize collar stretching that often occurs when centralizers encounter tapers, commonly found in certain types of pipe connections. By reducing collar stretch, the centralizers maintain their efficacy and provide optimal support.
3) To reinforce the end collar, a stamped rib is incorporated into its structure. This rib enhances the collar's strength and durability, preserving its round configuration even during transportation, which can be subject to various external forces.
4) These centralizers are available in several different spring bow heights. This feature allows for versatility and ensures compatibility with a wide range of casing-to-hole configurations. The availability of multiple heights enables users to select the most suitable centralizer for their specific requirements.
5) In addition to standard options, centralizers with built-in stop devices and uncommon sizes can be obtained upon request. This customization option offers flexibility to customers, allowing them to obtain centralizers tailored to their unique needs and specifications.
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.
