Standard selection of materials for rubber flexible joints

The raw materials of rubber flexible joints for pipelines can be made of different composite materials according to the different application places. It can be carbon steel, pig iron, etc. Pipeline rubber flexible joints are the ideal upgraded commodities of metal material rigidity rubber flexible joints. In the production of large diameter pipeline rubber flexible joints, raw materials must be selected according to the national standard drawing set specifications to ensure the long operation of the pipeline.
 
The rubber flexible joints are generally composed of hollow cylinder and metal reinforced flange. For small specifications, the application pressure is not too high, the structure of the barrel and the connecting flange is various, it can be a flange structure at one end and a mobile flange structure at the other end, or both flange structures. In general, sealing is not a problem. However, when the specifications are very large and high pressure, the structural form of barrel goods and connecting flange will clearly put forward better special requirements.
For example, it is stipulated that the flange of barrel goods and metal material to strengthen the flange connection is reliable, and the sealing function is reliable and reliable. When the actual effect of the seal is weakened, you can tighten the flange again to improve the sealing characteristics, loosen the bolt, remove the pressure ring, and then put in a layer or two layers of seals, stuck pressure ring, used again. There is no regulation on the chloride ion content, which is especially suitable for the system where the chloride ion content in the substance or the surrounding environment exceeds the standard. Sleeve specifications are divided into single-sided and double compensation structures. The double feature is that the rolling sleeve specification is rolled regardless of where the material is injected from to achieve the double compensation effect and expand the compensation.