Rubber hoses are often used in everyday life, but do you know how to choose rubber hoses? As a professional rubber tube manufacturer, we will introduce the influencing factors of rubber tube selection.
1, the inner diameter of the hose
When choosing a hose, we must pay attention to the proper inner diameter of the hose. If the inner diameter is too small, the flow velocity of the medium in the pipeline will be increased, the system will be heated, the efficiency will be reduced, and the pressure drop will be excessive, which will affect the performance of the whole system. If the pipe clamp is used to fix or the hose passes through the partition, etc., pay attention to the outer diameter of the hose.
1 The temperature of the working environment, if the working environment is at a high temperature, it is necessary to select a rubber tube with high temperature resistance to avoid deformation of the tube body and affect the safety of the hose operation.
2 The temperature of the medium. If the working temperature exceeds the technical characteristics of the hose, the hose may leak. The high temperature may cause the life of the hose to decrease. The temperature of the medium will affect the mechanical properties of the hose.
The working pressure of the rubber tube assembly must be equal to or greater than the maximum working pressure of the hydraulic system, and the pulse pressure and peak pressure of the system must be less than the working pressure of the rubber tube assembly. Here we need to distinguish between working pressure, pulse pressure, peak pressure, test pressure, and burst pressure.
4, storage environment
Under normal circumstances, the rubber tube assembly should be stored in a normal temperature, dry, cool, clean environment, away from ultraviolet and radioactive materials; avoid direct sunlight; avoid chemical corrosive substances.
5, the medium
The inner rubber layer, outer rubber layer, pipe joint and sealing ring of the hose must have good compatibility with the medium in contact with each other and cannot produce a chemical reaction.
6, hose joint form
Common EO (24 degree cone) seal; 37 degree flare seal; O-ring seal; ED seal.
Different customers, occasions may need to meet different standards, such as the railway bureau needs DB certified hose, coal mine safety requires MSHA certified hose;
There are occasions where it is necessary to have a minimum bend radius requirement for the hose;
Whether the use environment of the hose needs wear resistance;
Whether the hose needs anti-static, insulation, etc.
In the selection of rubber hoses, we need to consider the above factors comprehensively. I believe that everyone can purchase the ideal products.