What are the main reasons for the failure of sealant gasket of heat exchanger unit?

Wholesale of heat exchanger units, customization of heat exchanger units, which heat exchanger unit is good x1, pressure impact

When the heat exchanger unit is used at the rated working pressure, the leakage is generally related to the abnormal impact load in the system, which is not easy for ordinary operators to check. The instantaneous pressure peak caused by impact is often about twice higher than the normal working pressure, The rubber gasket installed in the heat exchange unit is displaced, resulting in the seal failure of the heat exchange unit. Because the heat transfer element of this kind of device is produced by stainless steel sheet, its sealing rigidity is relatively poor, and the periphery of the seal is very long, so the impact resistance performance is lower than that of the heat exchange unit.

2. Time effect

For heat exchange units that have been used or idle for several years, the aging of sealing materials may affect the sealing reliability, so the maintenance opportunity should be used to replace new sealing gaskets in time.

3. Temperature effect

The rapid change of temperature can also lead to seal failure. When the temperature changes rapidly, the linear expansion coefficient, elastic deformation and sealing preload of the rubber gasket of the heat exchanger unit will not match, which reduces the sealing preload, resulting in the pressure bearing capacity of the device being much lower than the rated design pressure.