LNG LO2 LN2 Cryogenic globe control valve

LNG LO2 Low temperature stop control valve is a key valve specially designed to control the flow of fluid in low temperature environment, especially when treating low temperature media such as liquefied natural gas (LNG) and liquid oxygen (LO2). The main function of this valve is to prevent the back flow of the fluid in the system, ensuring the fluid flow in a predetermined direction and cut off the fluid flow when needed.For detailed characteristics and applications are the details of the LNG LO2:Materials and structures Material: Since both LNG and LO2 are stored and transported at extremely low temperatures, the valve material must have good low-temperature toughness and corrosion resistance. Common materials include stainless steel, carbon steel, and special alloys designed for low-temperature environments.Structure: Low temperature stop control valve usually adopts special sealing structures, such as metal seal or soft seal, to ensure that good sealing performance can be maintained under low temperature conditions. At the same time, the valve structure has been optimized to reduce heat loss and improve operation efficiency. Functions and FeaturesLow temperature adaptability: the valve can work normally at very low temperature without freezing, leakage or performance degradation.Precise control: Through precise flow control and rapid response mechanism, the valve can accurately control the flow speed and direction of the fluid.Safety and reliable: the valve is equipped with safety protection devices, such as over current protection, over pressure protection, etc., to ensure that the fluid flow can be cut off quickly under abnormal circumstances and protect the safety of equipment and personnel.application area Liquefied natural gas (LNG) industry: used for the fluid control of LNG storage tanks, transmission pipelines, classification stations and other key links.Aerospace: plays an important role in the filling and supply system of low-temperature fuels such as liquid oxygen.Chemical and pharmaceutical: widely used in the process requiring low temperature, highly corrosive media. Selection and installationIn the type selection, it needs to be comprehensively considered according to the specific process conditions, medium characteristics, operation requirements and other factors. At the same time, the relevant specifications and standards should be strictly observed during the installation process to ensure the correct installation and stable operation of the valve.In conclusion, the LNG LO2 low temperature stop control valve is a valve equipment with a key role in the low temperature environment. It ensures the safe and efficient flow of fluid in the system through precise control and reliable sealing performance.

The disassembly process of the LNG cryogenic stop valve mainly includes the following steps:Preparation tools and materials: The tools to be prepared include wrench, screwdriver, rubber hammer and cleaner, etc.‌Close the valve: Close the valve through the handle or transmission mechanism to ensure that the medium does not flow out Remove the cover: Use a wrench or screwdriver to remove the screws on the cover and remove the cap from the body.Remove the spool: Remove the spool from the seat and carefully check the spool and seat for damage or wear.Cleaning parts: Clean the valve with detergent and rubber hammer and carefully check for damage or wear Assemble the valve: assemble the cleaned valve parts in the original order to ensure that each part is located correctly.Test valve: After assembly, open the valve, test whether it opens and closes normally, and check for leakage.In addition, attention should be paid to safety during disassembly, and protective equipment such as protective glasses and protective shoes may be required. During disassembly and assembly, ensure that the stem nuts and spool are fastened to avoid leakage problems.‌