How to right use of submersible pump and pump absorption in pig

Submersible pump and sewage pump is an essential thing in the world, but the principle is not the same between the two. Use a slightly improper will cause the motor burn out, cause economic losses and delays farm work, so hard to master its working principle and correct method of use is necessary.

Micro and miniature self-priming pump pumps in common, are all small size, low power consumption. Mini submersible pump must put the pump in the water, not lack of work. Submersible pump head length, average 750 w up to 80 meters.

Miniature self-priming pump is a pump can not be put in water, just put the pipe in the water, can automatically pumped the water pump. Its absorption can reach 5 meters, that is to say as long as the distance of the water pump, no more than 5 meters, can suck up the water automatically, without first into the water pipe filled with water, very convenient, but head submersible pump is a bit poor.

Submersible pump work is through the water cooling, and suction pump by air cooling.

At boot time should be avoided under the condition of low voltage switch on, the voltage is too low will make speed to drop, such as amounted to less than 70% of rated speed, start centrifugal switch would be closed, due to start around the leader time electricity and heat and even burn winding and capacitors.

Stalling do not frequently switch motor, this is because the pump will produce return, if an immediate start up, can make the motor load startup, cause the start current is too large and burn winding. High voltage can't boot, otherwise it will cause motor overheating and burning motor windings.

Is the most important thing is, suction pump can only be used for pumping water tower and the use of water, and cannot be used for flushing bar, this is because the impact bar usually on hoses are installed shrink when nozzle or strong impact pressure hose to water with the hand, and in so doing to the suction pump is fatal. Because of the suction pump pumped water must be release automatically, if forced to squeeze back, a long time can cause motor damage, a common example of this life.

And the submersible pump is different, because it has the reflow function, pumped water even if short time with a switch control is not water, it can also put water back, when punching bar so very short  door, extrusion pipe has less influence on the motor. But must pay attention to the water pump water pump body surface two-thirds should stop working, or let burning motor, because of the submersible pump by water cooling.