How to maintain and maintain the centrifugal pump after it stops working?

Even better centrifugal pumps, if not maintained, can not achieve higher efficiency, so we must pay attention to some basic requirements in the process of using centrifugal pumps. The following describes the requirements for the centrifugal pump to stop running.

     1. After the centrifugal pump stops running, the inlet valve of the pump should be closed. After the pump is cooled, the valve of the auxiliary system is closed.

  

     2. When the cryopump is parked, when there is no special requirement, the pump should always be filled with liquid; the suction valve and the discharge valve should be kept normally open; the cryopump with double mechanical seal, the liquid level controller and the seal in the pump seal cavity The liquid should maintain the pumping pressure of the pump.

     3. Centrifugal pumps that transport crystals that are easy to crystallize, easy to solidify, and easy to precipitate. Stop the pump and prevent clogging, and flush the pump and pipeline with water or other medium in time.

     4. Drain the liquid accumulated in the pump to prevent rust and cracking.