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 |
| Bow Spring Force | 1000 lbs |
| Coupling Type | Integral |
| Mandrel OD | 3.5 |
| Material | Carbon Steel |
| Product Name | Bow Spring Centralizer |
| Size | 3-1/2 |
| Length | 7.5 inch |
| Yield Strength | 3000 lbs |
| 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 |
| Bow Spring Force | 1000 lbs | Coupling Type | Integral |
| Mandrel OD | 3.5 | Material | Carbon Steel |
| Product Name | Bow Spring Centralizer | Size | 3-1/2 |
| Length | 7.5 inch | Yield Strength | 3000 lbs |
| Brand Name | ZS | Model Number | 13 3/8″ to 4 1/2″ |
| Certification | IOS,API | Place of Origin | China,Henan |
| High Light | Optimize Casing Placement Stop Collars ，Drilling Operations Stop Collars | ||
Centralizer Stop Collars
a. Mobile Screw-Type Stop Collar: Slide the collar over the casing and securely tighten the screws using a wrench, ensuring a snug fit.
b. Fixed Screw-Type Stop Collar: Place the collar around the casing, then carefully insert and gently tap the screws into position using a hammer, securing them firmly.
c. Buckle-Type Stop Collar: Fasten the stop collar onto the casing by buckling it and locking it in place with a pin. To ensure optimal performance, softly tap the screws into position using a hammer.
If you have any further inquiries or require additional assistance, please don't hesitate to let me know!
Discover the wide-ranging applications and distinctive features of centralizer stop collars, also known as position rings, stop circulars, brake rings, and more. These collars play a crucial role in limiting the slip of centralizers or cement baskets on casing during the cementing process. Available in three types - mobile screw, fixed screw, and buckle - their primary function is to restrict axial movement and ensure proper positioning of centralizers or cement baskets along the casing.
Step-by-Step Installation and Usage Guide for Centralizer Stop Collars
Step-by-Step Guide to Install and Utilize Centralizer Stop Collars
3. Property Parameters of Centralizer Stop Collars:
| 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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