Recently, a report about the 91-year-old grandma swimming for 31 years has been screened online. At the end of the 20th century, this grandma retired and coincided with the establishment of the Win...

The reason and solution of water leakage of pump seal

After the pump is evacuated, or during the evacuation process     1) The pump body vibrates greatly, and the dynamic and static rings of the mechanical seal will continue to collide intermittently,...