The sealing technology of the connection between the bottle valve and the pipeline of Carbon Dioxide Small Cylinder (Industrial Grade) is of key significance to ensure the safe storage, transportation and use of gas.
First of all, the selection of sealing materials is crucial. Common sealing materials include rubber, polytetrafluoroethylene, etc. Rubber materials such as nitrile rubber have good elasticity and oil resistance, can fit tightly with the bottle valve and pipeline under a certain pressure, and effectively prevent the leakage of carbon dioxide gas. Polytetrafluoroethylene has excellent chemical stability and low friction coefficient, high temperature resistance and corrosion resistance, and is suitable for harsh industrial environments. For example, in some chemical companies, small carbon dioxide cylinders may be in high temperature and strong acid and alkali atmospheres. Polytetrafluoroethylene seals can reliably maintain the sealing state of the connection parts and ensure the safe operation of the system.
Secondly, the connection structure design affects the sealing effect. The connection between the bottle valve and the pipeline is usually made by threaded connection, ferrule connection, etc. When threaded connection, the accuracy and surface quality of the thread are directly related to the sealing performance. Precision-machined threads can provide uniform sealing pressure, and with suitable sealing materials, such as polytetrafluoroethylene raw tape wrapped around the threads, the sealing effect can be further enhanced. The ferrule connection relies on the deformation of the ferrule to hold the pipeline and bottle valve tightly. The design points are the hardness, elasticity, shape and size of the ferrule. A suitable ferrule can form a stable sealing ring after installation, effectively prevent gas leakage, and is easy to install and disassemble, which improves the convenience of maintenance.
Furthermore, the installation process is an important part of sealing technology. During the installation process, for threaded connections, ensure that the threads are clean and free of impurities, and tighten them according to the specified torque. Excessive torque may damage the seal or thread, and too small torque cannot achieve a good sealing effect. When connecting with a ferrule, the ferrule must be accurately installed in the appropriate position of the pipeline, and tightened with special tools to ensure uniform deformation of the ferrule. In addition, strict sealing tests are required after installation, such as using a pressure test method to fill a certain pressure of nitrogen or carbon dioxide gas into the connected system, and using a high-precision pressure sensor to monitor the pressure change. If the pressure does not drop significantly within the specified time, it indicates that the seal is good.
The sealing technology of the bottle valve and pipeline connection of Carbon Dioxide Small Cylinder (Industrial Grade) is a comprehensive technical system, involving sealing materials, connection structure design and installation process. Only by being scientific, reasonable, rigorous and standardized in these aspects can we ensure the high sealing of the bottle valve and pipeline connection, ensure the safety and reliability of the use of carbon dioxide gas in industrial production, and reduce safety accidents and production losses caused by leakage.
