Instruction 1.The series vessels have the insulating and heating functions ,and are designed, produced, pressure tested and accepted in accordance with Technical Conditions of Steel Welded Vessel. 2.The tanks have many specifications from 3000L to 5000 L/1000L to 15000L ,or can be designed and produced according to the customer's demand. 3.The insulation material of the vessel adopts urethane foam insulation, hightemperature & anti-aging pearl cotton for heat preservation. 4.The interface adopts universal standard package chuck type. The inner surface of the tank is mirror-finished up to Ra0.28 and the outer surface is sub-polished, sandblasted or sub-polished with original color. 5.The tank has level indicator, air respirator nozzle, thermometer, inlet and outlet of liquid, recirculation pump interface, manhole and tank purger.