The use environment and maintenance methods of cosmetic plastic hoses

The use environment and maintenance methods of cosmetic plastic hoses

Cosmetic plastic hoses should be carefully managed, do not drag, bend or flatten on sharp or abrasive surfaces, for example, do not let wheels run over the hose. Here are some factors that can affect the service life of cosmetic hoses. The pressure of the pressure injection hose product should not exceed the specified design working pressure. Temperature cosmetic plastic hose products cannot be used outside the temperature range specified or recommended by the hose manufacturer. Environmental cosmetic plastic hoses cannot be used in environments that exceed the design requirements. If there is any doubt about its suitability, or need to be used under special or different conditions, the hose manufacturer should be consulted. Bending radius plastic hoses cannot be used below the bending radius specified or recommended by the hose manufacturer, otherwise the conveyed materials will be restricted. Should avoid bending or twisting near the hose connection, because continuous bending at these locations will increase the fatigue damage of the hose, leading to premature damage to the hose ring torsion stress. Cosmetic plastic hoses are usually not suitable for working in a twisted state. Tensile stress Only in the case of special design, the hose can withstand tensile stress. If in doubt about the suitability of the hose, you can ask the hose manufacturer. Vibration will cause the hose to fatigue and heat, especially near the joints, which will cause premature damage to the hose assembly. Learn from the hose manufacturer whether the hose designed and produced can withstand vibration. Before installing the end pipe fittings on the end pipe joints, check whether the pipe fittings are matched with the hose and whether the installation method is reliable. If in doubt, the manufacturer of hoses and fittings should be consulted. The edge of the pipe joint must be smooth, and the size of the tail piece, collar ring and other accessories must be ensured to ensure effective sealing when installed correctly. The clamping pressure and clamping torque must be controlled, otherwise the pressure and torque applied are insufficient or too large, which will lead to premature failure of the assembly. In order to insert the pipe joint into the hose, it is recommended to use clean water or soapy water. Electrical performance test If there are requirements for the electrical performance of hoses and hose assemblies, they can be tested regularly according to GB. Repair Unless otherwise required by relevant rules and standards, cosmetic plastic hoses and hose assemblies should be tested or inspected regularly to ensure their suitability for continued use. Particular attention should be paid to the conditions at and around the hose connection, as well as the deterioration of performance due to the damage caused by the normal aging of the hose or the damage caused by the accident in use, abuse or abnormal conditions.