Three main reasons for poor pumping are as follows:
1. Leakage or leakage of pipeline
The nut may not be tightened during installation. If the leakage is not serious, you can smear cement or mix cement slurry with asphalt oil in the place of air leakage or water leakage. Temporary repairs can be made with wet mud or soft soap. If water leaks at the joint, the nut can be tightened by hand. Serious leakage must be re-assembled.
2. Filler overheating
Because the packing is too tight, the cooling water can not enter the packing, or the shaft surface is damaged. Some measures can be taken, such as relaxing the packing properly and cleaning up the blockage of the sealing pipe. Packing wear must be replaced. Before installation, it is soaked in the oil and loaded in circles. The incision should be staggered so as to reduce leakage. After the last packing ring is packed, the pressure cap should be tightened and the tightness should be adjusted when running.
3. Pumps do not absorb water or drain water
The main reasons are blocked bottom valve, silt in filter water, too high water absorption or leakage of water absorption, incorrect steering, blockage of impeller runner and so on. After checking one by one, measures such as repairing bottom valve, removing silt, correcting steering and cleaning impeller can be taken respectively.
Pumps do not absorb water or drain water. The main reasons are blocked bottom valves, blocked filter water, too high water absorption height or air leakage, or wrong steering, blocked impeller runner and so on. After checking one by one, measures such as repairing bottom valve, removing silt, correcting steering and cleaning impeller can be taken respectively.