Puyang Zhongshi Group Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 1000sets/month |
| Delivery Time | 15 work days |
| Packaging Details | Metal or wooden case |
| Type | Bow Type Spring Centralizer |
| Material | Carbon Steel |
| central multimedia | central machinery parts |
| central hydraulics scissor lift | toyota central locking system |
| Weight (KG) | 10 |
| Use | Well Drilling |
| Color | Customized |
| Coating | Galvanized |
| Weight | Varies |
| End Collar Type | Plain, Threaded, Flush |
| Mandrel Thickness | 3/8'' to 1/2'' |
| Size | 3-1/2'' to 20'' |
| Brand Name | ZS |
| Model Number | 5-1/2"X8-1/2"to20"X26" |
| Certification | API 11AX |
| Place of Origin | China,Henan |
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Product Specification
| Payment Terms | T/T | Supply Ability | 1000sets/month |
| Delivery Time | 15 work days | Packaging Details | Metal or wooden case |
| Type | Bow Type Spring Centralizer | Material | Carbon Steel |
| central multimedia | central machinery parts | central hydraulics scissor lift | toyota central locking system |
| Weight (KG) | 10 | Use | Well Drilling |
| Color | Customized | Coating | Galvanized |
| Weight | Varies | End Collar Type | Plain, Threaded, Flush |
| Mandrel Thickness | 3/8'' to 1/2'' | Size | 3-1/2'' to 20'' |
| Brand Name | ZS | Model Number | 5-1/2"X8-1/2"to20"X26" |
| Certification | API 11AX | Place of Origin | China,Henan |
| High Light | Non Welded Bow Spring Casing Centralizer ，Double Bow Spring Casing Centralizer ，Oil Gas Fields Bow Spring Centralizer | ||
API Standard Single Bow Spring Centralizer for Casings:
Casing centralizer
1. Introduction of casing centralizer
The casing centralizers are used to protect sucker rod to reduce wearing.
2. Material
2.1. Super strength spring steel
2.2. ASTM A395 ductile iron ,or equivalent international series number.
2.3. Polyester centralizer
2.4. Aluminum alloy
3. Structure
3.1. One or double bow without welding
3.2. Rigid type
3.3. Roller type
4. Specification
4″×5-7/8″, 4-1/2″×6-1/8″, 5″×61/2″, 5-1/2″×8-1/2″, 7″×8-1/2″, 7-5/8″×9-1/2″ , 8-5/8″×10-5/8″, 9-5/8″×12-1/4″, 10-3/4″×14-3/4″, 13-3/8″×17-1/2″, 16″×20″, 20″×26″
| 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 |
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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