ISIS - Internally sited intermittent storage
A system developed by Thames Cryogenics in response to a growing need to move away from the hazardous manual handling of large pressurised cylinders of liquid nitrogen.
Essentially the pressurised dewar remains static in the location where liquid is required, either for manual decanting or filling downstream equipment like cryopreservation freezers. An SIVL system is then installed to deliver liquid nitrogen to the ISIS system in a controlled manner from a bulk tank. This can happen at a given time, every day, twice a week etc..., or when the ISIS tank has fallen below a set level.
All of the venting streams and pressure relief devices are incorporated into the ISIS system providing the most comprehensive, safest system on the market for delivering liquid nitrogen to the point where it is required with a minimum of loss.