GML prove that even after 35 years a 40’ helium tank still has plenty of life.
The photos show a Gardner tank soon after its full refurb had been completed and just prior to its shipment to Europe to satisfy a long-term contract.
It is true that some applications, such as in the manufacture of semiconductors, require liquid helium tanks with high pressure and longer voyages will also need tanks with a long holding time.
However, domestic usage where the transit time is short, still makes up a significant portion of the market. For this traffic, these older 40’cryogenic tanks with relatively low pressure and holding times are ideal.
Furthermore, the terms applying to these can and will be significantly more “generous” than those applying to new equipment.