BENCH FOR GRADUATING AND TESTING LEVEL METERS FOR LIQUID HYDROGEN Russian patent published in 2006 - IPC G01F25/00 

FIELD: measuring technique.

SUBSTANCE: bench comprises pressure-tight heat-insulated vessel with pipelines for charging and discharging liquid hydrogen. The vessel receives the level meter to be tested and the standard level meter. The bench also has the pressurizing system, afterburner mounted at the end of th drain pipeline, valving members, and testing and measuring instruments. The bench is provided with the additional pressure-tight heat-insulated vessel that receives the level meter to be tested and standard level meter and has pipeline for pressurizing and draining vapors. The bottom section of the additional vessel is connected with the drain pipeline through the stop valve. The drain pipeline is provided with the second stop valve which is mounted upstream of the afterburner.

EFFECT: reduced cost of graduating and testing.

2 cl, 8 dwg