Why can the suction range of water pump be higher than 10 meter?

The suction range of the water pump can be higher than 10 meter, indicating that it does not work completely by atmospheric pressure. If you work only by atmospheric pressure, you can only press 10 meter at most.

Above10m, such as a self-priming pump with small flow and high suction, its principle is:

The small flow and high suction self-priming pump is mainly based on the screw self-priming pump, and a jet suction head is added to the underwater suction pipe. The high suction pipe and the jet suction head are connected by two plastic pipes, one large and one small. When in use, put the double-tube suction head into underground or other water sources, install a high-suction self-priming pump outside the well, and fill the pump and pipeline with water, so that the water can be sucked up within 30 meters.

Extended data:

1. If the water pump has any minor faults, remember not to let it work. If the packing of the pump shaft is worn, it should be added in time. If the pump is used continuously, it will leak. The direct impact of this is that the energy consumption of the motor will increase and the impeller will be damaged.

2. If the pump vibrates strongly during use, it must be stopped to check the reason, otherwise it will also cause damage to the pump.

3. When the bottom valve of the water pump leaks, some people will fill the inlet pipe of the water pump with dry soil and flush the bottom valve with water, which is really undesirable. Because when dry soil is put into the water inlet pipe, it will enter the pump when the pump starts to work, damaging the impeller and bearing of the pump, thus shortening the service life of the pump. When the bottom valve leaks, it must be repaired. If it is serious, it needs to be replaced with a new one.

4. Pay attention to the maintenance of the water pump after use. For example, if the water pump is used up, clean the water in the pump. It is best to unload the water pipe and then rinse it with clear water.

5. Remove the adhesive tape from the water pump, then rinse it with water and dry it in the sun. Don't put the tape in a dark and damp place. The adhesive tape of the water pump must not be stained with oil, and it must not be coated with sticky things.

6, carefully check whether there is any crack on the impeller, impeller fixed on the bearing is loose, if there are cracks and loose phenomenon, should be repaired in time, if there is dirt on the pump impeller, should be cleaned up.

References:

Baidu encyclopedia: water pump