Vacuum Insulation Couplings
- Vacuum Insulation Couplings owns double layer structure and high vacuum degree.
- Vacuum Insulation Couplings applies the same structure and production process as the vacuum Insulation tubing.
- Sanjack’s vacuum Insulation couplings has the lowest rate for heat loss in China.
Vacuum Insulation Couplings
To solve the heat loss problem occurred at VIT coupling or coupling + donut combination, Sanjack developed a vacuum coupling of new technology. The heat conductivity coefficient reaches 60% of conventional coupling. It is new design and patented vacuum insulated couplings which has two layers vacuum annular structure. In vacuum annular, there are insulated materials warped to stabilize and guarrantee the insulation performance.
All tools and pumps can be loaded easily because of no insulated sleeve.
Vacuum Insulation Couplings Structure
Advantage：
Vacuum insulation couplings
Vacuum design with better insulation performance.
Optional insulation material: regular and aerogel
No sleeve and easy operation
Vacuum Insluation Couplings Parameter
| Item | Technical Specifications |
| OD | 139.7mm （4 ½ ）larger than regular |
| Length | 227.4mm |
| Steel grade | N80、L80、P110 |
| Coefficient conductivity Ratings | B、C |
| Thread type | 4 1/2BCSG |
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OCTG Tubing Guide- Specifications and Grade of steel
- PSL1 or PSL2
- Corrosion and wear conditions
Steel Tubing Pipe Guide- Specifications and Grade of steel.
- PSL1 or PSL2
- Corrosion and wear conditions.
Vacuum insulated tubing Guide- Specifications and Grade of steel.
- The connection type.
- Working temperature.
Tungsten Coated Tubing Guide- Corrosive composition
- Abrasion condition
- Working temperature.