Failure of Stainless Steel Melt Pump

Among all the melt pumps, they are of excellent quality and have a certain special application range. But stainless steel pumps also have some unexpected faults when they are working, such as shutdown. It is necessary for us to analyze the main reasons for the shutdown, so as to avoid unnecessary machine damage in the future. The shutdown is mainly caused by the failure of mechanical seals. The performance of failure is mostly leakage. There are several reasons for leakage:

1. The main reasons for leakage of sealing surface of dynamic and static rings are: flatness of end face, roughness not up to the requirements, or scratches on the surface; particulate matter between end faces, resulting in the two end faces can not operate equally; installation is not in place, and the way is incorrect. 2. Leakage of compensating ring seal ring is mainly caused by deformation of cover, uneven pre-tightening force, incorrect installation, unsatisfactory quality of seal ring and incorrect selection of seal ring. 1. Pumps conveying medium such as easy crystallization, solidification and precipitation should be prevented from clogging after stopping pumps, and pumps and pipes should be flushed with clear water or other medium in time.

2 The shutdown of melt pump shall be carried out according to the technical documents of the equipment. After shutdown, the car shall be turned half-circle every 20-130 minutes until the temperature of the pump body drops to 50 degrees Celsius.