As a flexible pipe connector, coolant hoses are widely used in automotive pressure accumulators and auxiliary heat exchangers. In order to ensure the smooth flow of coolant into the manifold and valve body, the coolant hose adopts a unique tree shaped multi branch sub channel structure.

    As a flexible pipe connector, coolant hoses are widely used in automotive pressure accumulators and auxiliary heat exchangers. In order to ensure the smooth flow of coolant into the manifold and valve body, the coolant hose adopts a unique tree shaped multi branch sub channel structure. The coolant hose not only needs to meet the requirements of functionality, structural size, and performance, but also needs to be fully compatible with the extremely complex and compact layout of the engine compartment.

    Not to mention the impact of design, the high temperature radiation and oil immersion of the engine can also gradually age the exterior of the coolant hose. But regardless, the most common aging is from the inside out. Therefore, when there are tiny pinholes outside, it indicates that severe corrosion has occurred inside the hose. The wear channel is a natural phenomenon resulting from the micro battery effect in electrochemical corrosion and cooling systems. The oxygen in the air is one of the main factors causing chemical reactions, so improving the filling process of the cooling system can effectively avoid such accidents.

   When a large amount of coolant leaks, the fault is clear at a glance. However, the key issue is how to diagnose the corrosion inside the hose without disassembling it. The following methods can help you quickly and accurately locate dying coolant hoses: knead the hoses by hand, especially the hoses on the radiator, bypass, manifold, valve body, and upper part of the heater, whose connection ends are the most important. If there is a noticeable soft or inelastic handle at the kneading area (compared to other parts), it indicates severe corrosion of the hose at that location. If the vehicle's mileage is low at this time, it is recommended to check the voltage of its cooling system. During inspection, the negative terminal of the voltmeter is connected to the grounding electrode of the battery; Insert the positive electrode into the coolant (do not touch any metal parts). If the voltage reading is above 0.3V, a comprehensive and systematic inspection of the vehicle's grounding electrode is required. Meanwhile, ensure that there are no auxiliary grounding electrodes connected to the radiator bracket.

    For flexible pipe channels, even if only one branch leaks, it is wise to replace the entire coolant hose, otherwise it will be twice the result with half the effort.

    Although most hoses can be flexibly installed without twisting, almost all hoses are molded because molded hoses are more suitable for compact installation space needs.

    OEM clamps for coolant hoses typically use a spring band structure. The elastic snap ring causes compression deformation inside the hose, thereby achieving a tighter connection and uniform sustained pressure. However, when the end of the hose connection is slotted or deformed, the sealing performance of OEM elastic buckles is not as good as that of high-quality repair clamps. The maintenance fixture mainly includes a contraction band that can continuously adjust the compression force and a worm drive type with tension. Among them, the turbine secondary clamp can rotate 360 degrees around the circumference. Generate uniform pressure in the direction of the bolt, and ensure the reliability of the fastening connection through the compression deformation generated by compression.

China's Producers and Manufacturers of Automotive Silicone Hose.