20” Non-welded Positive Centralizers Complete With Stop Collars and Nails for Use Inside 30” Conductor
Product Description
Positive bow centralizer is used for both casing and tubing applications that require concentric casing strings.
In deviated cased holes, the centralizer significantly reduces frictional drag and can provide nearly 100% standoff.
Rib design allows for optimized fluid flow in the annulus, which contributes to a high-quality primary cement job.
| Product name | Rigid Positive centralizer |
| Material | Steel |
| Size | 4-1/2″×6″-13-3/8″×17-1/2″ |
Size Information
| Specification | Casing size (mm) | Hole Size (mm) | Inner Diameter (mm±2) | Outer Diameter (mm±2) |
| 4-1/2″×6″ | 114 | 152 | 118 | 152 |
| 5-1/2″×8-1/2″ | 140 | 216 | 142 | 216 |
| 7″×8-1/2″ | 178 | 216 | 182 | 216 |
| 9-5/8″×12-1/4″ | 244 | 311 | 249 | 311 |
| 13-3/8″×17-1/2″ | 340 | 445 | 344 | 445 |
Packing&Shipping
Packing:polywood case or customized.

Cementing Rubber Plug Cementing Basket
Shijiazhuang DiBo Petroleum Machinery Co., Ltd.
Our casing centralizer have already passed the ISO9001 system certification, and the quality of our product exceed API 10D standard. To guarantee new products R&D, we adopt CAD. UG design and modular design to shorten products developing circle. With electronic universal testing machine. Hardmeter and automatic impact testing machine we could control quality of the raw material and finished products properly.
Our products are widely used in many oilfields and committed to effective and qualified solutions for oilfield down-hole operation.
Welcome to you.
Shijiazhuang Dibo Petroleum Machinery Equipment Co., Ltd. has been focusing on the production and processing of petroleum machinery parts since its establishmen, it has injection casting and machining workshops; it has 2 processing centers, more than 10 various CNC, ordinary lathe CNC milling machines, and CNC drilling machines; High-pressure injection molding machines, gravity casting machines, vacuum consumable furnaces, punches, forklifts, cranes and many other production equipment; with electric welding machines and automatic welding equipment, it can complete the processing and production of various underground tools.
Exhibition
At present, we often join in for China Cippe,Russia exhibition,USA Exhibition ,many customers choice us in these exhibitons. Welcome to your inquiry and cooperation.

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