What is the reason for the cracking of the double flange limit expansion joint?

In daily life, will often see the pipeline connected to the place will have a similar joint things will be connected to the two, this is the double flange limit expansion joint, and many users in the use of a period of time, found that the double flange limit expansion joint cracked, then what is the reason for this？Today, Huanzong gives you a brief analysis.

Double flange expansion joint because is forged, in the delivery and installation of the whole process will appear risk problems, in the installation of the whole process together with the application of the case, because the coupling is not vertical, or other problems caused by the body position of the expansion joint cracking, the cause of this problem appears depending on the body plate of the left and right coupling part of the closed chamber parts in the process of ignoring the problem, the problem does not depend on the manufacturer The problem does not depend on the manufacturer, but should only depend on the design solution. In the middle of the left and right lifting plate is connected to the reinforcement, so as to prevent the body plate in the installation and application of the whole process because of the pipeline problems caused by the expansion joint cracking problems, in addition to prevent the manufacturers and customers in the middle of the dispute cases, to ensure that the economic development of each other's rights and interests are not damaged; also is in the expansion joint casting material problems, casting parts in the processing of iron adulterated with other materials, but also It will also endanger the compressive strength of the expansion joint.