-
The reasons why the pump is normally turned and cannot pump water are divided into the following types:
1.There is air in the water pump inlet pipe and the water pump body. The pump is not filled with enough water before starting, and sometimes it looks like the filled water has overflowed through the vent, but the air is completely discharged without turning the pump shaft, leaving a little air in the inlet pipe or pump body.
2.The pump speed is too low. Some users are driven by another motor due to the damage of the original motor, resulting in small flow, low head and even no water.
3.The suction lift of the water pump is too large. Some water sources are deeper, and some water sources are flatter on the periphery, and the allowable suction range of the pump is ignored, resulting in little or no water absorption. It is important to know the vacuum level that can be established at the suction port of the water pump.
There is a limit, the suction lift of an absolute vacuum is about 10 meters high in the water column, and it is impossible for a water pump to establish an absolute vacuum. Moreover, the vacuum is too large, which is easy to vaporize the water in the pump, which is not conducive to the work of the pump.
-
The reasons why the pump does not turn normally are as follows.
It is possible that the internal mechanism of the pump is faulty, or the water seal is leaking, or it is possible that the water inlet of the pump is stuck by a foreign object.
-
The pump will turn but cannot pump water 1. The pump is not filled with a certain amount of water before it is turned on; 2. The slope of the inlet pipe of the pump is insufficient, and there is no descending slope; 3. The packing of the water pump has been used for a long time, and it has been worn or loosened.
-
The water pump can not turn the water normally, it does not call out several situations, first, the pump is reversed, there is no head, the second mechanical wear such as impeller damage, first.
3. The impeller part and the main body of the pump are loose and not fixed. There are foreign objects at the fourth outlet and inlet. There are only four situations in which the pump does not turn the water.
-
If the pump rotates normally but does not get water, it may be that the water seal of the pump is broken, or the impeller is broken. Cannot generate enough pressure to pump the water out.
-
The water pump can rotate normally without water, and it is necessary to check whether the water pump is leaking, the water seal is invalid, and the suction pipe is leaking, which can lead to water inadequacy.
-
If the pump rotates normally, it does not get water, which means that the internal structure of the pump is broken, so the water cannot be pumped.
-
It may be caused by a lack of water in the pump, just add water to the pump.
-
Half of them are sometimes on the water, sometimes they are not, what is the reason? What do I think is the reason for this? If the pump is not broken, it is a good water pump, sometimes it is on the water, sometimes it is not on the water, it means that you have half of the power to pad, sometimes it is on the water, sometimes it is not on the water, what is the reason?
What do I think is the reason for this? If the pump is not broken, it is a good pump, sometimes it is on the water, sometimes it is not on the water, it means that you have a pad, there is power, you have no electricity on the water, he will not go to the water, this is a reason, and another may be if the pump is broken, maybe the first round of the pump is cowardly, sometimes he is on the water, sometimes it is broken, and he is not on that place, because his impeller is sometimes half of the water is on the water, sometimes not on the water, what is the reason? What do I think is the reason for this?
If the pump is not broken, it is a good pump, sometimes it is on the water, sometimes it is not on the water, it means that you give the pad, there is power, you have no electricity on the water, he will not go to the water, this is a reason, and another may be if the pump is broken, maybe the first round of the pump is cowardly, sometimes he is on the water, sometimes it is broken, and he will not be on that place, because he is the impeller, sometimes the generation is half on the water, sometimes on the water, sometimes not on the water, what is the reason? What do I think is the reason for this? If the pump is not broken, it is a good pump, sometimes it is on the water, sometimes it is not on the water, it means that you are padd, there is power, you have no electricity on the water, he will not go to the water, this is a reason, and another may be if the pump is broken, maybe the first round of the pump is cowardly, sometimes he is on the water, sometimes it is broken, and he is not on that place, because he has this impeller, sometimes the belt does not rotate?
-
This may be due to the presence of air in the inlet pipe and pump body, the speed of the pump is too low, the suction stroke of the pump is too large, and the water leakage at the pipe interface. If there is air in the inlet pipe and pump body, just drain the air directly. If the speed of the pump is too low, see if it is caused by motor damage, and if so, replace it with a new one.
And if there is a leak at the pipe interface, just put the nut.
Tighten it.
-
This situation should be that the water pump is too shallow, after the pump starts to work, the water level in the well will drop, the water inlet of the pump is exposed outside the water, and the pump will not be able to suck water, so that the pump will not be able to suck water on the top, and when the water outside the well seeps into the well and does not pass the pump inlet again, the pump can suck water again, and when the pump is on the water, when the pump sucks again, the water level will drop again, and the pump will not be able to suck water.
To solve this problem, you can put the pump down a little deeper, and the water inlet will not be exposed.
-
The pump is sometimes on the water, sometimes not on the water, in fact, the main pump is sometimes on the water, sometimes not on the water, in fact, the main reason is very likely, is the pump motor bearing is broken, is the pump motor bearing broken.
-
The pump is sometimes watered, sometimes not watered, if the motor pump is running normally, most of the cases are caused by water leakage caused by foreign objects in the check valve or closed door.
-
If there is no reservoir in the pump or there is not enough reservoir, the solution is that you need to fill up the reservoir in the pump.
The solution is to eliminate the phenomenon of air leakage in the suction pipe of the water pump.
The pump voltage is too low, and the solution is to adjust the voltage.
If the suction stroke of the pump is too high or the suction pipe is too long, the solution is to reduce the suction lift or shorten the pipeline.
-
The impeller is stuck with foreign bodies, and when the current is too large, the original water pump has a built-in thermal overload power-off function, and there may be poor lubrication of the motor bearing, resulting in a large pump current.
-
If the pump and power supply are not faulty, it may be that the liquid level is too low (this is often the case with sewage pumps), and the liquid at the pump inlet is pumped too low and will not be watered, and after a while, the surrounding liquid will gradually gather to a certain depth at the pump inlet and then it can be watered again.
-
The water pump can sometimes be watered, sometimes can not be watered, indicating that its power is insufficient, or there is a problem with the internal parts, it is best to recommend maintenance or direct replacement of the water pump with better quality, so that the water will be more stable.
-
The water pump is an electrical appliance that requires high voltage, so the water pump will cause your current voltage to be unstable when it is used, and it is not easy to get on the water when the voltage is relatively low, and you can use the water when the voltage is normal.
-
Sometimes if the water does not come, it should be that his impeller is faulty, which depends on what kind of pumping method your pump takes, and it needs to be opened for detection.
-
When the pump is pumping water, it may also be blocked due to foreign matter in the water, I only know that there is such a situation, because I have encountered other ones that are not very clear, I hope to help you.
-
It is possible that the low amount of water from the pump is related to the depth of the water level. There is also poor contact. You can also buy a fully automatic water pump with air capsule, with air bag type water pump.
-
The water pump sometimes goes on and sometimes does not water is related to the automatic control of the water level controller or induction switch, which should be checked.
-
There could be a variety of reasons that cause the pump to stop working after turning for a while, here are some possible reasons and how to fix it:
Power Issues: The water pump needs sufficient voltage and current to work properly. If the power supply is unstable or the wires are in poor contact, it may cause the water pump to stop working. The solution is to check whether the power supply is firmly connected, whether the wire is damaged or aged, and ensure that the power supply is stable.
Clogged water pump: If the inlet or outlet of the water pump is blocked, the water pump may stop working after a while. The solution is to clean the pump and pipes and make sure that the pump's filters and other parts are not damaged.
Pump damage: If the pump's motor or other flushing parts are damaged, it may cause the pump to stop working. The solution is to locate the damaged part and have it repaired or replaced.
Pipe pressure is too high or too low: If the pipe pressure is too high or too low, the pump may stop working. The solution is to check if the pipe pressure is normal and adjust the pipe valve or pump settings as needed.
Pump running for too long: If the pump works continuously for too long, it may cause overheating and stop working. The solution is to give the pump sufficient rest time and make sure that the pump can cool down properly.
If you're not sure how to fix the problem, it's best to contact a professional technician for inspection and repair.
-
Summary. Hello dear dear, I am happy to answer for you: the normal operation of the pump is the reason why the water cannot be pumped is as follows:
1. If there is air in the inlet pipe and pump body, in order to make the pump operate, it is necessary to do irrigation in advance for treatment, first empty some air in the inlet pipe and pump body, so that the pump can get greater pressure, so as to pump the water out, once there is air exists, it will directly affect its poor pressure, simply put, there is no power, once there is no power, the water can not be pumped up.
Hello dear dear, I am happy to answer for you: the normal operation of the pump is not able to pump the original Xun coincidence is as follows: 1. If there is air in the inlet pipe and pump body, in order to make the pump operate, it is necessary to do irrigation in advance for treatment, first empty some of the air in the inlet pipe and pump body, so that the water can be pumped out of the water mu, once there is air there is directly affecting its pressure is poor, simply put, there is no power, once there is no power, the water can not be pumped up.
2. The speed of the centrifugal speed pump in the metering diaphragm pump is too low, and the centrifugal speed pump is to rotate the driven water, so it produces a huge centrifugal force, resulting in a pressure difference. If the speed of the centrifugal pump is too low, it will cause a pressure difference, and the water will naturally not come up. Here's how to fix it if you can't get it:
1. First of all, we must first check the reason why the pump water cannot be pumped, and then make some corresponding solutions according to the corresponding reasons, if there is some air in the water inlet pipe and stool pump body, we must first discharge the air outdoor, and then turn on the metering diaphragm pump, but if the centrifugal speed pump is too slow, we must repair or replace the centrifugal speed pump. 2. After the inspection before use, it is found that it does not belong to the water pump itself, but because of the influence of some external factors, such as the water pump should not be bored and should be directly put into the water to work, and there are some things directly put on the ground to work, then we must put the pump into a new environment to work, and it can be put on land to work, so we must start to check in many ways before the inspection, which can really solve the problem. You have to replace it with a new part.
-
The reason for the failure of the water pump to pump out the water:
The pump is reversed. 2.No water was filled into the water injection hole of the pump.
3.There is a foreign object blocking the impeller or pump inlet.
4.The gap between the impeller and the pump casing in the pump is too large, and the inlet and outlet channels are straight.
5.The pipe from the inlet end of the pump to the water source is damaged, causing the inhaled air to become a state of false pumping.
6.The pump power is too small to reach the water pressure required to pump water.
7.The pins connected between the motor and the impeller fall off or are worn, and only the motor runs without driving the impeller to rotate.
A water pump is a machine that transports or pressurizes a liquid. It transmits the mechanical energy or other external energy of the prime mover to the liquid, so that the liquid energy increases, and is mainly used to transport liquids including water, oil, acid and alkali, emulsion, suspension emulsion and liquid metal.
It can also convey liquids, gaseous mixtures and liquids containing suspended solids. The technical parameters of pump performance include flow, suction lift, head, shaft power, water power, efficiency, etc.; According to different working principles, it can be divided into volumetric water pumps, vane pumps and other types. Positive displacement pumps use changes in the volume of their studios to transfer energy; Vane pumps use the interaction between rotary vanes and water to transfer energy, and there are types of centrifugal pumps, axial flow pumps and mixed-flow pumps.
-
Summary. Dear, I am glad to answer for you: the normal operation of the pump is the reason why the water cannot be pumped is as follows:
1. If there is air in the inlet pipe and pump body, in order to make the pump operate, it is necessary to do irrigation in advance for treatment, first empty some air in the inlet pipe and pump body, so that the pump can get greater pressure, so as to pump the water out, once there is air exists, it will directly affect its poor pressure, simply put, there is no power, once there is no power, the water can not be pumped up.
Dear, I am glad to answer for you: the normal operation of the pump is the reason why the water cannot be pumped is as follows: 1. If there is air in the inlet pipe and pump body, Lao Cong stupidly wants to make the pump work, and must do irrigation in advance to deal with it, first empty some of the air in the inlet pipe and pump Zheng Sen's body, so that the pump can get greater pressure, so as to pump the water out, once there is air, it will directly affect its poor pressure, simply put, there is no power, once there is no power, the water can not be pumped.
2. The centrifugal speed pump speed in the metering diaphragm pump is too low, and the centrifugal speed allows the Li chain pump to rotate the water, so as to produce a huge centrifugal force and cause a pressure difference. If the speed of the centrifugal pump is too low, it will cause a pressure difference, and the water will naturally not come up.
The following is the solution to the pumping: 1. First of all, we must first check the reason why the pump water cannot be pumped, and then make some corresponding solutions according to the corresponding reasons.
2. After checking before use, it is found that it does not belong to the water pump itself, but because of some external factors, such as the absolute disturbance to eliminate the water pump should not be directly put into the water to work, there are some things directly put on the ground to work, then we must put the pump into a new environment to work, it can also be put on land to work, so before the inspection must be checked in many ways, this can really solve the problem, if the pump is broken with Li guess piece, It is necessary to replace and know the new parts.
Measure your voltage, maybe the voltage drop is too large, causing the motor speed to drop; Observe the water level in the well, whether the water level has changed; >>>More
This self-priming pump in your home must be a double-pipe vacuum self-priming pump, first of all, the air in the pump and suction pipeline is not discharged when it is installed for the first time, so it will cause this phenomenon, you fill up the water in the pump body and pipeline to check whether the water level in the pump body has dropped, there will be a decline, indicating that the bottom valve of water absorption may have leakage. The foot valve is to be replaced.
You can take out the pump and plug it in for a trial, if it can't be turned, it is recommended to disassemble the pump. The pump used for filtration is still used to pump water outward when changing water. After cleaning the rotor and plugging it in again, if there is no response, then it means that it is broken, according to the pump nameplate. >>>More
The phenomenon of boiler inlet check valve return water refers to the downward movement of the piston by the pressure of hot water when the boiler circulating water pump is working, the check valve is opened, the hot water loses pressure when the pump is stopped, and the check valve rises to close the valve. >>>More
Automatic suction pump not turning can be caused by a number of reasons. Here are some possible reasons: >>>More