How about the pressure safety of non-refillable cylinders

Non-refillable cylinders are a very high-quality material. The benefits of reasonable use in current life are very good. Non-refillable steel cylinders can bear pressure well. This makes the entire non-refillable steel cylinder into a high-pressure vessel. The effect of using it will be even better. This time, the Dewar manufacturer talked about the pressure safety of non-refillable cylinders.

What is a non-refillable cylinder? What are the classifications?

Whether non-refillable cylinders are safe or not, the manufacturer will first let you understand the concept of non-refillable cylinder pressure. One concept of pressure in a pressure vessel is the force that is vertically induced per unit area of an object. The exact name should be called stress intensity, except that it is called stress in the habit. The unit of pressure is usually atmospheric pressure. In the project unit system, it is expressed in kilogram-force/cm2. When the pressure is low, it is also expressed in water or mercury. The pressure units adopted in the country are the same, and invalid "bar" (bar), "Pa" (Pa), Newton (N) or pound, etc. The pressure in the pressure vessel is measured with a pressure gauge. The pressure indicated on the pressure gauge is called gauge pressure, which reveals the pressure value that indicates that the external medium of the vessel exceeds the atmospheric pressure. The absolute pressure in the container should be the pressure indicated by the pressure gauge plus the nearby atmospheric pressure. What are the types of non-refillable steel cylinders? Steel gas cylinders are storage and transport pressure vessels, which have some special requirements different from fixed pressure vessels in terms of structure and use. (Imported product safety and quality licensing system has been implemented. Commodities that have not obtained import safety and quality license are not allowed to be imported.) Cylinders are divided into design pressures: high pressure (300, 200, 150, 125kgf/cm2) and medium and low pressure (80, 50) , 30, 20, 10kgf/cm2). The high-pressure gas cylinder must be a seamless structure, and the welded gas cylinder is used to contain low-pressure gas. At present, China’s industrial steel gas cylinders are classified into compressed gas (t＜-10℃=300, 200, 150Kgf/cm2; liquefied gas (t≥-10℃) or high-pressure liquefied gas ( -10℃≤t≤70℃) has 200, 150, 125, 80kgf/cm2=; liquefied gas (t≥-10℃) or low-pressure liquefied gas (t＞70℃, and the pressure at 60℃>1kgf/ cm2) There are 50, 30, 20, 10Kgf/cm2 and other types. Generally speaking, the pressure is high, it is very easy to burst. Especially some high pressure vessels. There is more demand for pressure accuracy. When purchasing non-refillable steel cylinders, you pay more attention to the pressure requirements of non-refillable steel cylinders. The above simple expressions are some of the pressure safety behavior issues of non-refillable steel cylinders. Those who are interested are welcome to inquire.