Liquid nitrogen storage Dewars
Lake Shore offers two 50 L liquid nitrogen storage Dewar configurations.
One configuration includes a Dewar with an NW-40 top flange and a special adapter that allows the Dewar to be used with a SuperTran high-efficiency transfer line. The transfer line adapter includes a 0.5 in o-ring compression seal to provide a pressure-tight seal around the 0.5 in diameter storage Dewar leg of the transfer line. The transfer line adapter also includes a pressure gauge, 4 psi safety pressure relief valve, and a vent valve that can be used to pressurize the Dewar by connecting it to a N2 gas cylinder with a regulator (cylinder and regulator are not included).
The other configuration includes a standard Dewar with a LN2 withdrawal device. The withdrawal device is useful for filling smaller containers with LN2 from the Dewar. The withdrawal device includes a pressure gauge, a safety pressure relief valve, a short stainless steel tube for dispensing LN2, and a shutoff valve. Please note that the Dewar that is configured for the withdrawal device does not have the NW-40 top flange, and is not compatible with the transfer line adapter.
|Model||Capacity||Daily evaporation rate||Neck diameter||Outside diameter||Height||Filled weight||Empty weight|
|LN-50||50 L||0.4 L||3.75 in||18.5 in||30.5 in||127 lb||38 lb|