Most hose couplings are equipped with sealing gaskets to ensure the sealing of the connection and prevent fluid leakage. Sealing gaskets are usually made of rubber, polyurethane, or other chemical and high-temperature resistant materials, which can provide a tight seal between hoses and couplings. The function of a gasket is to fill small gaps at the connection, thereby avoiding the leakage of liquids or gases, especially in high-pressure, chemical corrosion, or high-temperature environments, where the role of a sealing gasket is particularly important.
The sealing gasket for hose couplings can be selected from different types of materials and designs according to specific application requirements. For example, when dealing with corrosive chemicals such as acids and alkalis, it is usually necessary to use materials with corrosion-resistant properties, such as fluororubber or polytetrafluoroethylene (PTFE). For high-temperature applications, high-temperature resistant silicone or fluorosilicone rubber may be used. Different types of sealing gaskets have different working temperature and pressure ranges, so when selecting hose couplings, the adaptability of the sealing gasket should be ensured according to the actual working conditions.
Some high-pressure or special purpose hose couplings may be equipped with a dual sealing design, where two gaskets are used overlapping to increase sealing performance. In addition, the size and shape of the gasket are usually closely matched with the design of the coupling to ensure optimal sealing effect. Regularly inspecting the sealing gasket of hose couplings, especially when used in high-pressure or harsh environments, is an important measure to ensure the safe and stable operation of the system.