dth borewell machine
fabricantes de bombas de escória vertical

Regularly lubricate all necessary parts. This can not only reduce friction between components, decreasing wear, but also prevent rust, protecting the mechanical parts. Proper lubrication is one of the secrets to keeping the drilling rig running smoothly.
The reason:
Inlet valve is not open or has silted
Suction line resistance is too high or blocked
Suction height is too high
The reason:
Inlet valve is not open or has silted
Suction line resistance is too high or blocked
Suction height is too high