The bellows compensator sometimes falls off in practical applications. If this phenomenon is small, it will cause damage to the corrugated expansion joint, and if it is large, it will pose a threat to the damage of the entire pipeline, and the degree of damage is closely related to the installation of the fixed bracket and pipe frame pipeline.
The following explains the causes of bellows expansion joint pull-out and how to prevent it.
1. Why does the corrugated compensator break off?
Because after the stainless steel corrugated compensator is installed, it is necessary to adjust the tie rod device of the metal compensator itself to its compensation range, rather than dismantling all the devices. Corrugated compensator
There is no need to set up a fixed pipe rack when testing the pressure of the pipeline. If the tube rack is not set up for pressure testing, the stainless steel metal expansion joint will extend indefinitely with the action of pressure and impact force until it reaches the limit. This corrugated compensator has been stretched into a straight pipe or has lost its telescopic properties.
2. Why is the degree of damage closely related to the fixed pipe frame?
First of all, it has been stated above that if the fixed pipe frame is installed in strict accordance with the requirements, then the stainless steel bellows will only be damaged after the tie rod device is removed, even if it is affected by the pressure and thrust of the pipe. The corrugated expansion joints within the frame are pulled, twisted, or displaced without causing damage to equipment and piping in other pipe sections.
3. How to prevent the stainless steel bellows from pulling out, and how to set up the fixed pipe frame?
The installation method is to fix the limit bolt within its telescopic compensation range when installing the corrugated compensator with a tie rod device. It is also important to note that the fixed pipe frame and bracket must be installed during the installation to ensure that the pipe does not displace when subjected to instantaneous pressure and thrust, so that the bellows expansion joint can play the maximum role.