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.

ModelCapacityDaily evaporation rateNeck diameterOutside diameterHeightFilled weightEmpty weight
LN-5050 L0.4 L3.75 in18.5 in30.5 in127 lb38 lb


Lake Shore — environment by JANIS

LN-35 Liquid Nitrogen Storage Dewar

Model LN-50 liquid nitrogen storage Dewar including adapter for FHT-ST transfer line