Do the screws of the expansion joint need to be disassembled

Whether the screw of the expansion joint needs to be removed depends mainly on the specific usage and installation requirements.

Firstly, the screw of the expansion joint is usually used as a support and fixing for the expansion joint to prevent lateral or longitudinal displacement during operation. If the pipeline needs to withstand a certain amount of pressure during operation, the screw cannot be removed because once 

removed, the expansion joint may not maintain a stable shape and is prone to deformation or damage due to external forces. In this case, removing the screw may lead to a decrease in the resistance of the pipeline system, affecting the normal operation of the entire pipeline system.

However, in certain specific situations, such as maintenance and repair of pipeline systems, it may be necessary to temporarily remove the screws of the expansion joint. But before dismantling, it is necessary to ensure that the expansion joint does not fall due to the weight of the pipeline system above, which may cause personal injury or damage to other equipment. In addition, when reinstalling the screw, it is necessary to ensure that its length, position, and angle are consistent with the requirements of the expansion joint to ensure the normal operation of the pipeline system.

Overall, whether the screw of the expansion joint needs to be removed should be determined based on specific usage and installation requirements. In uncertain situations, it is recommended to consult professional engineers or manufacturers to ensure safe and correct operation.