Dewars

Lab dewars ready to ship

Evacuation of custom dewars

Technifab manufactures liquid nitrogen storage devices (dewars) for a variety of applications:

• Laboratory Dewars
• Bio Dewars
• Detector Dewars
• Custom Dewars

Dewar Construction

Technifab has special equipment to install multi-layered insulation (MLI) mechanically, and the trained personnel to hand-wrap or blanket-wrap insulation to ensure the lowest possible boil-off.

Dewars are manufactured using either aluminum or stainless steel.  They are TIG or MIG welded on automatic welding units or manually by one of our skilled welders.  Every weld is inspected for aesthetic consistency and tested using helium mass spectrometer leak detection to as low as 2 x 10^-10 cc/sec sensitivity with no leaks.