| Customization: | Available |
|---|---|
| After-sales Service: | Yes |
| Warranty: | 1 Year |
|
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Audited Supplier Audited by an independent third-party inspection agency
The Casing Coupling conforms to API Specification 5ct and other related standards,Having been anthorized to use the API monogram.
All sizes of BTC,LTC,STC Casing Coupling are available in grade J,N,L, which all of them conform to API latest specification.
As there are a lot of different details for the same kind product,our company can customize product according to the client's requirments.
|
Casing coupling specifications |
OD mm |
Min length mm |
Weight kg |
||
|
short-thread |
long-thread |
short-thread |
long-thread |
||
|
4 1/2 |
127 |
158.75 |
177.8 |
3.62 |
4.15 |
|
5 |
141.3 |
165.1 |
196.85 |
4.66 |
5.75 |
|
5 1/2 |
153.67 |
171.45 |
203.2 |
5.23 |
6.42 |
Performance of Internal Epoxy Coating
| Inspection Item | Standard | Inspection Method | ||
| 1 | Appearance | Smooth, Uniform color, no bubble, no cracking or contraction cavity, little range peel allowed | Visual | |
| 2 | Thermal Performance |ΔT g|(ºC ) | ≤ 5 | Appendix B | |
| 3 | cathodic disbanding resistance | ≤ 6.5 | Appendix C | |
| 24h or 48h (mm) | ||||
| 4 | Bonding surface porosity | 1~4 | Appendix D | |
| 5 | The section void ratio | 1~3 | Appendix D | |
| 6 | resistance to deflection 3° | No cracking | Appendix E | |
| 7 | Impact Energy (8J) | No pin hole | Appendix F | |
| 8 | Adhesive force | dissection method | 1~2 | Appendix G |
| pull off adhesion (MPa) | ≥ 20 | GB/T 5210 | ||
| 9 | Electric strength (MV/m) | ≥ 30 | GB/T 1408.1 | |
| 10 | Volume resistivity(Ω·m ) | ≥ 1×1013 | GB/T 1410 | |
| 11 | Salt fog resistance (1000h) | No change of anti-corrosion coating | GB/T 1771 | |
Dongying Zhaoxin Industry and Trade Co.,Ltd is an ISO-9001, ISO-14001, ISO45001 certified company and has all the quality systems in place for design, planning,manufacturing and quality monitoring & traceability to ensure that Dongying Zhaoxin Industry and Trade Co.,Ltd products match the highest quality & reliability Standards similar to any International major in this field.
Dongying Zhaoxin Industry and Trade Co.,Ltd with perfect attitude, product and service, is going to make further development together with customers at home and abroad .
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