Puyang Zhongshi Group Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 10000sets/month |
| Delivery Time | 15 work days |
| Packaging Details | Metal or wooden case |
| Material | Carbon steel |
| Color | Customized |
| Surface treatment | Parkerising |
| Core Components | Pressure vessel |
| Warranty | 6 Months |
| Production Capacity | 10000 sets/year |
| Condition | New |
| Brand Name | ZS |
| Model Number | 1/8"-4" |
| 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 |
| Material | Carbon steel | Color | Customized |
| Surface treatment | Parkerising | Core Components | Pressure vessel |
| Warranty | 6 Months | Production Capacity | 10000 sets/year |
| Condition | New | Brand Name | ZS |
| Model Number | 1/8"-4" | Certification | IOS,API |
| Place of Origin | China,Henan |
Class T and Class SM coupling for sucker rods are manufactured as per API Specification 11B. For the thread cutting, we are using cold form rolled by displacing rather than by removing of material for making the coupling thread. The thread rolling cutting results in a compressive stress at the root of the thread, giving maximum strength to the traditional weak point of cut-thread couplings.
The coupling blanks are formed or machined to size and tolerance, threaded using a cold-forming rolled thread tap and coated for anti-galling and lubrication properties.
Class T couplings are recommended for installation where abrasion or corrosion-abrasion is not a problem.
Class SM couplings are recommended for abration or corrosion-abration position.
| Type | Grade | O.D (mm) | Minimum Lengh (mm) | Hardness | Weight (kg) | Standard |
| 3/4" | 19-T | 41.05~41.43 | 101.6~103.17 | 56-62HRA | 0.65 | API 11B |
| 7/8" | 22-T | 45.75~46.13 | 45.75~46.13 | 56-62HRA | 0.8 | API 11B |
| 1" | 25-T | 55.3.5~55.73 | 55.35~55.73 | 12-23HRA | 1.15 | API 11B |
All products purchased in our company are guaranteed to keep in good repair for one year. If quality problems happen in guarantee period, our company will maintain for free. Additionally, our company provides technical support and fittings for life. After-sales service isn't restricted by time and we will assign technical personnel to solve your problems immediately after receiving telephone and hear feedback idea of users and deal with them in time. If you are caught in some problems when using our products, welcome to contact us at any time.
A: We are factory.
A: Generally it is 1-5days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
A: Payment<=1000USD, 100% in advance.
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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