What precautions should be taken for the working pressure of high-pressure rubber pipes

When installing high-pressure rubber hoses, try to avoid heat sources and keep them away from the engine exhaust pipe. Sleeve or protective screen devices can be used to prevent the hose from deteriorating due to heat. In areas where high-pressure rubber pipes may cross or rub against mechanical surfaces during operation, protective devices such as hose clamps or springs should be used to prevent damage to the outer layer of the high-pressure rubber pipe. When bending high-pressure rubber pipes, the bending radius should not be too small and should be greater than 9 times the outer diameter. There should be a straight section at the connection between the high-pressure rubber pipe and the joint that is greater than twice the outer diameter of the pipe. When installing high-pressure rubber hoses, it is necessary to avoid being in a tight state. Even if there is no relative movement between the two ends of the hose, the hose should be kept loose. The tensioned hose will expand under pressure, and the high-pressure rubber hose should not be twisted during installation. Slight twisting of the high-pressure rubber hose may cause it to lower and loosen the joint. When assembling, the joint should be tightened onto the hose instead of tightening the hose onto the joint.

Due to the complex variety and diverse structures of high-pressure rubber hoses, as well as varying usage conditions, the service life of high-pressure rubber hoses is determined by their quality and proper use and maintenance. So even if the high-pressure rubber hose has high quality, if it cannot be used and maintained correctly, it will seriously affect its quality and service life. Therefore, some precautions need to be taken when using it. The high-pressure rubber hose and rubber hose assembly can only be used to transport the designed materials, otherwise it will reduce the service life or fail. Correctly use the length of high-pressure rubber hoses, as the length of high-pressure rubber hoses changes (-4% -+2%) under high pressure and changes in length caused by mechanical motion. High pressure rubber hoses and hose assemblies should not be used under the designed working pressure (including impact pressure). Under normal circumstances, the temperature of the medium conveyed by the high-pressure rubber hose and rubber hose assembly should not exceed -40 ℃ -+120 ℃, otherwise it will reduce the service life. High pressure rubber hoses and hose assemblies should not be used with a smaller bending radius than the hose to avoid bending near the hose joint, otherwise it will hinder hydraulic transmission and material transportation or damage the high-pressure rubber hose assembly.