Repairing of Vacuum Insulated Tanks (Liquid Oxygen, Liquid Nitrogen, Liquid Argon)

Vacuum Insulated Tanks/Cryogenic Tanks

Vacuum insulated tanks (VIT’s) either stationary or mobile are widely used in process and health care industry for the transportation/ storage of cryogenic liquids.
These tanks have two walls; inner to store cryogenic liquid at ultra-low temperature and high pressure of upto 16 bars and outer shell is kept at low pressure of 0.1mbar by creating vacuum.
Vacuum of outer shell plays an important role to minimize the evaporation rate of cryogenic liquid at inner shell.

Leak Testing/ Rectification of vacuum insulated tanks

  • NINVAST provide repair and maintenance services of vacuum insulated tanks with entire satisfaction.
  • Leaks in vacuum insulated tanks are traced by world’s most reliable technique i.e. helium leak detection.
  • NINVAST provide onsite and offsite rehabilitation services to its valued customers.
  • Overhauled VIT of Medigas oxygen pvt ltd and Ghani Gases pvt ltd. Our team is 24/7 available for industrial support.
  • Repaired/Rectified small size liquid nitrogen/oxygen containers ranging from 2 liters to 180 liters and restore their performance upto factory specifications.

Unique Features:

  • Leak detection through latest technology.
  • State of the art equipment.
  • Mobile vacuum pumping unit for offsite assignments.
  • 24/7 availability all round Pakistan.
  • Repairing and overhauling facility (In house).

Picture courtesy: Ghani Gases, Lahore Pakistan

Leak Detection of Liquid Nitrogen Containers

Repairing of 8000 liters VIT at NINVAST


Small Size Liquid Nitrogen Containers