Flange type metal bellows choose different materials

Flange type metal bellows choose different materials
The manufacturing material of the compensator is mainly made of stainless steel, because the stainless steel material is resistant to high temperature, high pressure and corrosion, which can ensure that the metal compensator can play a normal life. Corrugated metal compensator stainless steel material is divided into 304, 316L, 321 and 310S for customers to choose to use.
Corrugated expansion joint in the installation will encounter different installation environment, these external factors on the layout and laying of the corrugated expansion joint will have certain requirements, in order to reduce the corrugated expansion joint in the layout and laying link encountered unnecessary trouble, the following, I explain the flange type metal bellows selection of different materials.
As the soil is a good insulation material, the deeper the pipeline buried shell temperature and soil temperature field is higher, so the steam pipeline direct burial to shallow burial is beneficial. In order to ensure the reliability of the compensation link, the design span should not be greater than 100m, compensation should not be greater than 200m, but the design span should not be too small, so as not to increase the pipeline investment, in addition, the fixed bracket and expansion joint at the weak link, poor handling will affect the service life of the entire official website. In addition, expansion joints or fixed brackets should be provided at the change of diameter and wall thickness, and fixed brackets should be located on the side of the larger wall thickness.
The chemical stability of rubber can make non-metallic expansion joints have excellent performance. Some foreign manufacturers of non-metallic expansion joints even point out clearly in the information of non-metallic expansion joints that the medium in power plants contains S02., S03, etc. Only fluorine rubber can be used to make expansion joints of non-metallic expansion joints. We provide a large number of non-metallic expansion joints for the power industry, and it is proved that the expansion joints of non-metallic expansion joints using fluorine rubber are the most suitable for use in power plants.