The high and low pressure hose coupling assembly is a device for connecting high and low pressure hoses and is widely used in a variety of fluid delivery systems. These components are usually made of metal or plastic and have good pressure, corrosion and high temperature resistance to ensure the safety and stability of fluid transport. High and low pressure hose fitting assemblies are designed with a variety of factors in mind, including fluid type, operating pressure, operating temperature, connection method, and more. According to different application scenarios, the component can be connected in different ways, such as threaded connection, clamp connection, quick connector, etc., to adapt to different hose interfaces and installation requirements. High pressure and low pressure hose fittings are widely used in various industrial fields, such as petroleum, chemical, pharmaceutical, food processing, etc…