The SGL 01 and SGL 04 are systems based on the SPC 01 and SPC 04 and are specifically designed for applications to liquefy a given gas and to transfer it to an application or storage vessel. SGL systems are complete self supporting systems and include the SPC, a transfer vessel and process control equipment.
Gravity allows the liquid to flow into the transfer vessel.
When the vessel is filled, a sensor stops the liquefier and a pressure build-up coil is activated. The pressure on the liquid in the transfer vessel will increase up to a value set by the regulator. The liquid is pushed to the customer line and transported to the application via the valve at the bottom of the vessel. When the vessel is empty, the bottom valve is closed again and the cryogenerator is re-started. The capacity of all SGL models can be determined using the graphs on cold production of the SPC 01 and cold production graph of the SPC 04 .