Requirements after the centrifugal pump has been stopped

Once the centrifugal pump has completed its operation, it is important to close the inlet valve before moving on to shutting off the valves of the auxiliary system. It is recommended to wait until the pump cools down before closing the auxiliary system valves sequentially to ensure safe operation.

The proper procedure for stopping the high temperature pump is outlined in the equipment's technical documents. Once stopped, it is recommended to crank the pump for half a circle every 20-30 minutes until the temperature of the pump body reduces to 50℃. Following these guidelines helps to ensure the longevity and proper functioning of the pump.

When shutting down the cryogenic pump, it is important to note that the pump should always be full of liquid, unless there are special requirements otherwise. Additionally, the suction valve and discharge valve should be kept open to ensure proper airflow. For pumps with double-end mechanical seals, it is critical to maintain the grouting pressure of the pump and ensure that the liquid level controller and sealing liquid in the pump sealing cavity are properly taken care of. Remembering these key guidelines will help ensure proper functioning and safety of the cryogenic pump.

When it comes to pumps that transport media that are prone to crystallization, solidification, or precipitation, it is crucial to take preventative measures to avoid blockages. This can involve stopping the pump and quickly flushing both the pump and pipelines with clean water or other suitable media. By doing this, you can effectively remove any buildup that could cause issues down the line and ensure the continued smooth operation of your pump. Don't hesitate to take these precautions whenever necessary to maintain the optimal performance of your pumping system.

To prevent rust and freeze cracking, it is important to drain the accumulated liquid in the pump.