Selection of pumps used to prepare the combination of topography. Lift in the following 5 meters to the preferred axial flow pump as well; Head in 5-10 meters, should be preferred mixed flow better head lift more than 10 meters, priority centrifugal pumps can be used; if high lift, you should choose Multi-stage centrifugal pump or multi-stage pump to raise water level by level. At the same time supporting power and pump rated power to match. Install the pump base to be solid, and try to shorten the length of the suction pipe. Water inlet pipe should be sealed and reliable. Bottom valve and hose with safety rope fasten. Water sources for the channel, the bottom valve should be higher than the bottom of 0.5 meters, and screening to prevent debris into the pump. In the pump belt drive, the tight side of the belt should be in order to improve transmission efficiency. Pump impeller steering should be consistent with the direction of the arrow. Installation of pumps and power machinery should be firm and stable. To be parallel to the pump shaft and power shaft, the installation of the belt, should pay attention to the loose belt to be above. New purchase of machinery to start pumping, wipe the pump and other parts of the protective oil. Carefully check the connection of each component is solid, water hose leaks, leaks and so on. If there are problems should be promptly repaired. With the motor driven pump pumping, two pumps are prohibited at the same time start the homework to prevent the entire line current is too large and burn the motor, resulting in undue economic losses. Maintenance of new pumps, usually after 100 hours of operation to be replaced grease (oil), every 500 hours after the replacement. Pump stop pumping, you must first close the pressure valve, and then stop, remove the belt. When the machine stops for a long time, it is necessary to clean up the whole machine, put the water inside the pump completely, put some protective oil on the parts and parts that are easy to rust on the machine, so as to prevent the pump from rusting. Repair pump does not absorb or drain, can take repair bottom valve, remove the blockage, correct steering, cleaning impeller and other measures. Pipeline leakage or leakage, leakage or leaks can be painted in place of cement, or painted with asphalt mixing of cement slurry. Temporary repair can be painted wet mud or soft soap. If the joint leaks, you can use a wrench to tighten the nut, if the water leakage must be re-disassembly. Severe vibration pump, to adjust, repair, reinforcement, straightening, replacement and so on.
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