Pressure impact:
Able to disassemble the plate heat exchanger in which the rated working pressure inside the use of leakage. In addition to the quality in the manufacturing and assembly, but also the system is not normal shock load, which is not easy for ordinary operators to check the situation, the shock caused by the instantaneous pressure peak is often higher than the normal working pressure to 2 times, which also makes the installation of the plate heat exchanger in the rubber gasket displacement, making the plate heat exchanger sealing gradually failed, this device with the heat transfer element is made of stainless steel sheet, so the seal is poor, while the seal is very long around the impact resistance than the shell and tube heat exchanger to much lower.
Time impact:
After using several years, the gradual aging of the seal material itself will seriously affect the reliability of the seal, and therefore timely replacement into a new seal gasket is necessary when the maintenance.
Temperature impact:
The rapid changes in temperature can also lead to seal failure, when the temperature changes quickly, resulting in a significant reduction in the preload of the plate heat exchanger seal, making the device pressure than the rated design pressure is much lower out.