Our self-pressurized cryogenic liquid nitrogen containers/dewars are widely used in biological engineering and medical sanitation for storing the active biological materials such as the breeding livestock's semen and embryos, marek's disease vaccine, genes and dry cell.Up to now, our products have been sold well both in domestic and abroad and gained good reputation from our customers.

Geometric volume:55L

Effective volume:50L

Overall Dimension(diameter×height):455x1180

Empty weight(Kg):45

Working pressure(Mpa):<0.1

Daily boiling-off rate (%):≤2.2

Drainage volume(L/Min):≥4
 

While supplying liquid, it may be the normal phenomenon for there being any condensation water or frosting in the vessel outer surface. While the increasing pressure being carried out by switching-on the pressure increasing valve, the liquid may flow through the pressurization coil and absorb heat from the outer cylinder for vaporization and realizing the goal of pressurization; there may be some spot-like frosting in the outer cylinder surface; while the pressure increasing valve being switched off, the spot-like frosting shall be disappeared slowly. While the pressure increasing valve being switched off and the supplying liquid being not carried out, there may be any condensation water or frosting in the vessel outer surface; as may indicate that the vessel vacuum has been destroyed and this vessel could not be used. You should turn to the specialized factory for maintenance or abandon it.

Warranty:The warranty is generally 5 years vacuum, during which the replacement of broken components are free.