What do I need to pay attention to when buying metal expansion joints?

Non-metallic expansion joints need to pay attention to three points when buying: a look at the technology of non-metallic expansion joints is relatively simple, there are many intuitive places that can help us to judge. For example, to help you choose whether the design structure is reasonable, what material is used for the skin. Second look at the use See if the use of reliable, how long it can be used, procurement of non-metallic expansion joints must find the source ware manufacturers to cooperate, see if there are no actual cases, etc. Three look at the economy Good non-metallic expansion joints, must be optimized structure, not only long service life, but also consider the convenience of post-maintenance, reduce maintenance costs and save production costs.
 
Three common failures of non-metallic expansion joints: As the reaction of external conditions is also the main element that causes the fault of non-metallic expansion joints, so we need to enhance the performance of its anti-erosion and so on. Non-metallic expansion joints are widely used in hot air systems and fume ducts, after installation and operation, there are usually the following three failure situations: First, in the test pressure stage due to improper support or perhaps due to improper installation of the bracket and the effect of the goods, which requires us to consider the size of the pressure and the degree of load it can accept in the design process. Second, because the reaction of external conditions is also the main element that causes the non-metallic expansion joint fault, so we need to enhance the performance of its anti-erosion. Third, in order to protect, for the use of insurance, we should make every effort to improve its stability and strengthen its insurance protection. Therefore, for the non-metallic expansion joint failure situation, we need to give more consideration to the compensator in transport, before installation and installation of follow-up maintenance issues, so that we can do everything.