Puyang Zhongshi Group Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 10000sets/month |
| Delivery Time | 15 work days |
| Packaging Details | Metal or wooden case |
| Application | Application |
| Core Components | PLC, Bearing |
| Condition | New |
| Usage | Oilfield Drilling Equipment |
| Features | API Low Pressure Filter Press |
| Color | Customized |
| Material | Carbon Steel |
| Product Name | Bow Spring Centralizer |
| Brand Name | ZS |
| Model Number | 13 3/8″ to 4 1/2″ |
| Certification | IOS,API |
| Place of Origin | China,Henan |
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Product Specification
| Payment Terms | T/T | Supply Ability | 10000sets/month |
| Delivery Time | 15 work days | Packaging Details | Metal or wooden case |
| Application | Application | Core Components | PLC, Bearing |
| Condition | New | Usage | Oilfield Drilling Equipment |
| Features | API Low Pressure Filter Press | Color | Customized |
| Material | Carbon Steel | Product Name | Bow Spring Centralizer |
| Brand Name | ZS | Model Number | 13 3/8″ to 4 1/2″ |
| Certification | IOS,API | Place of Origin | China,Henan |
API-certified Casing Centralizer Stop collars
1.Application and characteristic of stop collar:
Position device (stop ring or stop collar), called position ring, stop circular, brake ring, etc.
It is used to limit the centralizer or cement basket slip on casing. It is divided into mobile
screw type, fixed screw type and buckle type.
2. Install and use the method of stop collar:
a. When use mobile screw-type stop collar, slip over the casing, and tighten the screws using wrench.
b. When use fixed screw stop collar, put the collar around the casing, insert the screw, and
knock into screws by hammer.
c. when install buckle type stop collar, buckle the stop collar onto the casing, lock with pin,
knock into the screws.
3. Property Parameters of stop collar:
| Specifications,mm | 13 3/8″ | 10 3/4″ | 9 5/8″ | 8 1/8″ | 7 5/8″ | 7″ | 5 1/2″ | 5″ | 4 1/2″ |
| ID,mm | 338 | 272 | 245 | 206 | 193 | 177 | 139 | 126 | 114 |
| OD,mm | 350 | 284 | 257 | 218 | 285 | 189 | 151 | 138 | 126 |
| Holding Force,KN | 40 | 40 | 40 | 30 | 30 | 30 | 30 | 24 | 24 |
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.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
1997
Total Annual:
5 million-10 million
Employee Number:
570~600
Ecer Certification：
Verified Supplier
Puyang Zhongshi Group Co., Ltd., restructured from SINOPEC in 1997 has 20 years experience on manufacturing petroleum machinery products . The company registered capital is 10 million U.S. dollars, with annual export 30 million U.S. Dollars. We have competitive price of o... Puyang Zhongshi Group Co., Ltd., restructured from SINOPEC in 1997 has 20 years experience on manufacturing petroleum machinery products . The company registered capital is 10 million U.S. dollars, with annual export 30 million U.S. Dollars. We have competitive price of o...
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