Specification of corrugated expansion joints for chemical industry

Corrugated expansion joint specification for chemical industry is prone to corrosion problems during the operation of hot pipe networks. Once the pipe is seriously corroded, not only holes will be formed, but also openings similar to tears, which will threaten the safe operation of the pipe network. Analysis of equipment corrosion shows that the chemical corrugated expansion joint specification if the pipeline in the flushing process left a large amount of corrosive liquid, the pipeline will be corroded. In cold weather without timely heating, these liquids will freeze and expand, causing the compensator to rupture. In addition, in a harsh equipment environment, the equipment may be corroded by the surrounding sewage or groundwater. At the same time, stress corrosion, followed by rusting and cracking, can occur due to the internal pressure and thermal displacement of the pipe. Chemical corrugated expansion joint specification of most bellows failure is caused by external environmental corrosion, so in the structural design of the compensator, can be considered to isolate the external corrosive media and bellows contact. Such as for external pressure axial type compensator can be added between the export end ring and export pipe packing seal device, chemical corrugated expansion joint specification its role is equivalent to the sleeve compensator, both to resist the invasion of external corrosive media, but also to the bellows compensator increased a safety barrier, even if the bellows damage, the compensator can also play a compensatory role and avoid the failure of the bellows.