EN854 return oil hose is a special type of pipeline mainly used for return oil pipelines in hydraulic systems. Due to its excellent performance and wide application, EN854 return hose has become an important component in hydraulic engineering. The material of EN854 return hose is usually high-quality rubber or plastic, such as polyurethane or natural rubber. These materials have good oil resistance, corrosion resistance, and high temperature resistance, and can withstand high temperatures and pressures in hydraulic systems. In addition, the inner wall of the EN854 return hose is smooth, which can effectively reduce fluid resistance and improve the efficiency of the hydraulic system. The design and manufacturing process of EN854 return hose is very strict and needs to meet the requirements of EN854 standard. The EN854 standard is a European standard that specifies requirements for the design, manufacturing, testing, and labeling of hydraulic hoses. Certification according to the EN854 standard means that the EN854 return hose has reliable performance and quality, which can meet various application requirements. In the hydraulic system, the function of the EN854 return hose is to deliver the pressure oil output by the hydraulic pump to various actuators, and at the same time collect and transport the returned oil from the actuators back to the inlet of the hydraulic pump. During this process, the EN854 return hose needs to withstand high temperature, high pressure, and various chemical substances, therefore it must have good oil resistance, corrosion resistance, and high temperature resistance performance. In addition, EN854 return hose also has advantages such as easy installation, easy maintenance, and low cost. Due to its excellent performance and wide application, EN854 return hose has become an important component in hydraulic engineering. When selecting the EN854 return hose, it is necessary to choose based on specific hydraulic system parameters and operating conditions. For example, it is necessary to select suitable materials and specifications of hoses based on factors such as system flow rate, pressure, temperature, and chemical substances. At the same time, factors such as the length of the hose, bending radius, and joint type need to be considered to ensure that the hose can work safely and reliably. In summary, EN854 return hose is a high-quality hydraulic pipeline with broad application prospects. In the future, with the continuous development of hydraulic technology, EN854 return hose will be more widely used and promoted.