The atmopheric vaporizers are realized with extruded finned pipes in aluminium alloy. Each single unit can guarantee a flow rate from 25 to 3'3000 Nm3 /h. For higher flow rates is necessary to connect more vaporizers. Road transport of each vaporizer is allowed without special permissions. The vaporizers can be provided CE marked according to PED (Pressure Equipment Directive 97/23/CE) or in alterative they can be designed according to ASME BPVC Div. 1.