The air tank is used to storage gas.At the same time,stabilizing the system pressure.According to the pressure of the gas storage tank can be divided into high pressure gas storage tank, low-pressure gas storage tank, atmospheric storage tank. The gas tank of gas tank, carbon steel, low alloy steel, stainless steel storage tank storage tank. The gas storage tank (pressure vessel) is generally composed of a cylinder, a head, a flange, a connecting pipe, a sealing element, a bearing and other parts and components. In addition, it is also equipped with a safety device, the meter and the completion of the role of different production processes.