Application: Commonly used in rotary drilling service as flexible connectors of mud manifold to transfer water-base mud and/or oil-base mud at high pressure in large volumes
Tube: Principally NBR constructed, featuring oil-resistant, abrasion-resistant, acid & alkali resistant
Reinforcement: 2~8 layers spiraled by single high-strength steel wire, and rubber as a binder to make the layers into one complete and sound construction
Cover: Primarily CR fabricated, featuring oil-resistant, abrasion-resistant, weatherproof and anti-ageing
Working Temperature: -30°C~82°C, or manufactured upon customers' requirements
Coupling Type: LP (Line Pipe Thread) and TBG (Tubing Thread) of API Spec 5B
Integral type union joint and flange joint, particular types upon customers' specific requirements
Reference Standard: API Spec 7K,ISO 6807
Applicable standard: API Spec 7k. SY/T5469-92
| | |
 |  |
| Structure picture | Real product picture |
| | |
Specification:
| Inner dia.(in) | Classes | Operating pressure (psi) | Test pressure (psi) | Min. bending radius(mm) | Connector code |
| 2" | A | 1500 | 3000 | 800 | TBG,LP |
| B | 2000 | 4000 | 800 |
| C | 4000 | 8000 | 850 |
| D | 5000 | 10000 | 850 |
| E | 7500 | 15000 | 900 |
| F | 10000 | 15000 | 950 |
| G | 15000 | 22500 | 1000 |
| 2 1/2" | A | 1500 | 3000 | 900 | TBG,LP |
| B | 2000 | 4000 | 900 |
| C | 4000 | 8000 | 1000 |
| D | 5000 | 10000 | 1000 |
| E | 7500 | 15000 | 1050 |
| F | 10000 | 15000 | 1100 |
| G | 15000 | 22500 | 1150 |
| 3" | A | 1500 | 3000 | 950 | TBG, LP |
| B | 2000 | 4000 | 950 |
| C | 4000 | 8000 | 1050 |
| D | 5000 | 10000 | 1050 |
| E | 7500 | 15000 | 1100 |
| F | 10000 | 15000 | 1150 |
| G | 15000 | 22500 | 1150 |
| 3 1/2" | A | 1500 | 3000 | 1000 | TBG,LP |
| B | 2000 | 4000 | 1000 |
| C | 4000 | 8000 | 1100 |
| D | 5000 | 10000 | 1150 |
| E | 7500 | 15000 | 1150 |
| F | 10000 | 15000 | 1200 |
| G | 15000 | 22500 | 1050 |
| 4" | A | 1500 | 3000 | 1050 | TBG,LP |
| B | 2000 | 4000 | 1050 |
| C | 4000 | 8000 | 1100 |
| D | 5000 | 10000 | 1100 |
| E | 7500 | 15000 | 1150 |
| F | 10000 | 15000 | 1200 |
| 5" | A | 1500 | 3000 | 1200 | LP |
| B | 2000 | 4000 | 1200 |
| C | 4000 | 8000 | 1300 |
| D | 5000 | 10000 | 1300 |