A hydraulic hose fitting is a type of connector used to connect hydraulic pipelines. This type of fitting is primarily used to transmit pressure, connect various pipelines and actuators, and is easy to install. It can also be used at pipe joints to connect pipelines and prevent liquid in the pipeline from contaminating other components. Its characteristics include high strength, corrosion resistance, oil resistance, wear resistance, and long service life. Hydraulic hose fittings are one of the most commonly used connecting elements in hydraulic pipelines. They are characterized by their small size, light weight, corrosion resistance, easy installation, direct installation at the pipe end, and insensitivity to pipeline temperature changes. A hydraulic hose fitting typically consists of two steel (flexible) tubes: one with a diameter of 1.5mm and the other with a diameter of 1.2mm, used for connecting two pumps or pipelines. Compared to other types of fittings, this type of fitting has significant advantages in ensuring working performance indicators and can better adapt to various complex environments and different working pressures. However, it also increases cost and pressure consumption.