Vacuum Insulation Couplings

Sanjack Petro manufactures Vacuum Insulation Couplings in China. We have our own factory of Vacuum Insulation Couplings. Sanjack Petro provides the high quality and competitive price on Vacuum Insulation Couplings for you. Contact us now for Vacuum Insulation Couplings quotation.

  • Vacuum Insulation Couplings has double layer structure and high vacuum degree.
  • Vacuum Insulation Couplings has the same structure and production process as the vacuum Insulation tubing.
  • Sanjack’s vacuum Insulation couplings is the lowest heat loss rate in China.

Vacuum Insulation Couplings

In order to solve the heat loss problem that occurred at VIT coupling or coupling + donut combination, Sanjack developed a new type of vacuum coupling.

The heat conductivity coefficient is 60% of conventional coupling. It is a new design and patent vacuum insulated couplings.

It has two layers and vacuum annular structure. In vacuum annular, there are warping of insulated materials to guarantee the insulation performance.

Without the insulated sleeve, all tools and pumps can be loaded easily.

Vacuum Insulation Couplings Structure

double layer coupling


Vacuum insulation couplings

Vacuum design with better insulation performance.

Optional insulation material: regular and aerogel

No sleeve and easy operation

Vacuum Insulation 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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