Why do you want to close the outlet valve when the centrifugal pump is started?

2024-01-06 06:10:31

Because of the centrifugal pump starts, the pump outlet pipe is not water, so there is no pipeline resistance and improve the high resistance, the pump starts, the pump head is low, the flow is very large, then the pump motor (shaft power) Large output (according to the pump performance curve), it is easy to overload, it will damage the pump motor and wiring, so start the export valve to close, in order to make the pump run normally.

Defence Barrier

QYM-Defence barrier

Defence barrier also named as defence bastion, defense wall, sand cage, welded gabion box, etc.It is a prefabricated,multi-cellularsystem, made of zinc coated steel welded mesh and lined with non-woven geotextile. Units can be extended and joined using the providedjoining pins. It is easy installed with using minimal manpower and commonly available equipment. After extended,it is filled into sand,stone,then defence barrier like a defence wall or bunker,it is widely used for fortification and flood control.

Defence Barrier,Hesco Barriers Gabion Box,Military Gabion Hesco Barrier,Gabion Barrier Welded Hesco

Hebei Qianye Metal Product Co., Ltd. , https://www.qymetalfence.com