Selection requirements for high-pressure rubber hoses: 
When choosing, it is necessary to select high-pressure hoses that match the working environment, medium, and different usage pressures, and choose materials and pressure levels that match them. 
2. The general standard for selecting the pressure rating of the hose is based on the high supply pressure of the main pump. 
3. Choose whether the inner layer of the high-pressure hose is made of nylon or other materials according to the different production materials. 
4. Based on the viscosity of the production materials and the required usage of the production process, the diameter and length dimensions of the high-pressure rubber hose are selected after calculation. 
Requirements for the use of high-pressure rubber hoses: 
1. Avoid the accumulation of vehicles and other heavy objects, which may limit the flow rate and pressure of the fluid inside the high-pressure hose. 
When the high-pressure hose is twisted or tangled together, do not pull or tug forcefully. 
When high-pressure rubber hoses frequently come into contact with frictional surfaces, protective bushings should be used. 
4. Keep away from heat sources