Liquid Oxygen, Nitrogen, Carbon di Oxide and Argon are produced in Air Separation Unit by the process of Fractional Distillation an stored in Mobile Storage Tanker are transported to different Consumers. Liquid are transferred to the Static Tanker of the Factory by Simple Diffusion process by maintaining the diffusion pressure deficit (DPD) in the both side by adjusting the pressure of the Static and Mobile Tanker. Stored Liquid can be pumped through vaporizer to convert the liquid into gaseous form by heat exchange with ambient temperature. Specific Gas can be filled by the specific manifold into the cylinders up to 150 kg/cm3 (as per temp. presure chart) pressure. Filled cylinder can be properly labeled and sealed with batch no. and dispatched to the parties.