What should I do if the pressure switch of the self priming pump starts frequently

<>1. The air volume in the pressure tank is too low, the capacity of the pressure tank is small or the air volume in the water is large, and the pressure is set too low, which will cause the pressure drop to be fast and the pump to start frequently.

2. The method of solving the frequency start: due to the long distance of conveying and the high height, the pressure required is large, and the pressure set on the pressure controller does not meet the requirements of use, so you can open the controller cover first and then use a flat-edge screwdriver.

Put the adjustment knob in the middle clockwise.

Upward rotation to obtain a higher disconnect pressure will solve the problem.

3. Fully automatic self-priming pump.

The reason for frequent start may also be due to the fact that there is no gas in the pressure tank above the self-priming pump, you can unscrew the aerated nut on the pressure tank and add gas to it with a pump to make the pressure tank play a role in stabilizing pressure. It should be noted that not every fully automatic self-priming pump has a function that can refill the pressure stabilizing tank.

The frequent activation of the pressure switch of the self-priming pump may be caused by the following reasons:

Problems with the outlet line of the self-priming pump: If there is a problem with the outlet pipe, such as the pipe diameter is too small or there is a blockage in the pipe, it can limit the flow of water from the pump, resulting in frequent activation of the pressure switch.

Improper setting of the pressure switch: If the difference between the starting pressure and the stop pressure set by the pressure switch is too small, it will cause the pressure switch to start frequently without stopping.

Self-priming pump impeller damage: If the impeller of the self-priming pump is worn or damaged, it will affect the efficiency of the pump, resulting in insufficient effluent flow and frequent activation of the pressure switch.

Problems with the inlet of the self-priming pump: If there is a problem with the inlet of the self-priming pump, such as the inlet pipe being too long or the inlet pipe is bent too much, it will limit the pump's ability to suction water, causing the pressure switch to start frequently.

If you encounter the situation that the pressure switch of the self-priming pump starts frequently and does not stop, the following measures can be taken:

Check the outlet pipe to make sure it is unobstructed.

Adjust the start and stop pressures of the pressure switch to make sure they are appropriately phased.

Check whether the impeller of the self-priming pump is damaged, and replace it in time if necessary.

Check the inlet of the self-priming pump for problems and make sure it is unobstructed.

It should be noted that different adjustment methods are suitable for different situations and need to be selected on a case-by-case basis. At the same time, in order to ensure the normal operation of the self-priming pump, regular maintenance and maintenance are required to eliminate possible faults in time.

There may be several reasons why self-priming pumps frequently start and stop automatically:

1.The water inlet is too small: the self-priming pump needs a certain inlet water flow to work properly, if the water inlet is too small, air will appear in the pump, causing the pump to start and stop automatically.

2.Air leakage in the inlet pipe or pump body: The self-priming pump needs to establish negative pressure inside the pump body in order to suck the liquid into the pump, if there is air leakage inside the pump body or air leakage in the inlet pipeline, the negative pressure cannot be formed, resulting in the pump automatically starting and stopping.

3.Unstable power supply voltage: Self-priming pumps require a stable power supply**, and if the supply voltage is unstable, the pump's motor will start and stop frequently.

4.Fouling or foreign matter blockage inside the pump: If there is fouling or foreign matter blockage inside the self-priming pump, it will affect the normal operation of the pump, resulting in frequent start and stop of the pump.

5.Faulty pressure switch: Self-priming pumps are usually equipped with a pressure switch to control the start and stop of the pump, and if the pressure switch fails, it will cause the pump to start and stop frequently.

If the self-priming pump starts and stops automatically frequently, it is recommended to check whether the inlet water is sufficient, whether the pump body and water inlet pipe are leaking, whether the power supply is stable, whether there is scaling or foreign matter blocking in the pump, and whether the pressure switch is normal. Take corresponding measures according to the specific situation, if the problem still exists, it is recommended to contact professional maintenance personnel for maintenance.

1.Due to the long distance and high height of the conveying distance, the pressure required is large, and the pressure set on the pressure controller cannot meet the requirements of use, so you can open the controller cover first and then use a flat-edge screwdriver.

Turning the adjustment knob in the middle clockwise upwards to get a higher disconnect pressure solves the problem.

2.Fully automatic self-priming pump.

The reason for frequent start-up may also be due to the fact that there is no gas in the pressure tank on the self-priming pump, and the refueling nut on the pressure tank can be unscrewed and added to it with a pump.

3.Since the user installs the self-priming pump, there is no check valve installed at the inlet and outlet.

As a result, the water returns quickly after the pump is stopped, and the outlet pressure drops so it is lower.

Summary. Turn the highest pressure of the pressure switch down, the lowest up and down, and the upper and lower pressures are on the line, boiling water, the lowest is closed, and the highest is disconnected after the water is turned off.

The working principle of a self-priming pump is that the casing is filled with water (or the casing itself contains water) before the pump is started.

After starting, the high-speed rotation of the impeller makes the water in the impeller channel flow to the vortex shell, and then the inlet forms a vacuum, so that the water inlet backstop door is opened, and the air in the suction pipe enters the pump, and reaches the outer edge through the impeller channel.

How to adjust the pressure switch of the self-priming pump without stopping?

Hello, I have seen your question and am sorting out the answer, please wait a while

Turn the highest pressure of the pressure switch down, the lowest up and down, and the upper and lower pressures are on the line, boiling water, the lowest is closed, and the highest is disconnected after the water is turned off. The working principle of a self-priming pump is that the casing is filled with water (or the casing itself contains water) before the pump is started.

After starting, the high-speed rotation of the impeller makes the water in the impeller channel flow to the vortex shell, and then the inlet forms a vacuum, so that the water inlet backstop door is opened, and the air in the suction pipe enters the pump, and reaches the outer edge through the impeller channel.

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1. Due to the long distance and high height of the conveying, the pressure required is larger, and the pressure set on the pressure controller cannot meet the requirements of use, so you can open the controller cover first and then turn the adjustment knob in the middle clockwise upward with a flat-mouth screwdriver to obtain a higher breaking pressure.

2. The reason for the frequent start of the pump may also be due to the fact that there is no gas in the pressure tank above the pump, you can unscrew the gas nut on the pressure tank and add gas to it with a pump to make the pressure tank play a role in stabilizing pressure, and the position of the gas filling hole can refer to the pump structure diagram.

3. Because the user does not install the check valve at the inlet and outlet when installing the pump, the water returns quickly after the pump is stopped, and the outlet pressure drops, so the pump will start again after the preset pressure is lower.

4. The pump will automatically start after the outlet pressure drops due to the faucet not being closed properly, or water flowing out of other places.

5. If the pump is in good condition before being used for a period of time, and there is a sudden phenomenon of frequent start and stop, then it may be that the automatic switch is broken, and you can replace an automatic switch to see if there is still the fault.

Q: I installed a tower-less water supply, and it was okay to use it at first, but after a while, I found that the start-up became more and more frequent, what happened? What to do?

Answer: Towerless water supply is a pneumatic water supply equipment, because the pipeline connection is not well sealed, resulting in gas leakage and too much water, so there is frequent start-up. In addition, the water itself dissolves a part of the air. Steps to Resolve:

Turn off the power Unscrew the blowdown valve When the pressure gauge shows zero, remove the pressure gauge and reinstall the pressure gauge after putting all the water into it, and turn on the power supply.

Tried and worked out perfectly.

Summary. The reason why your pump starts frequently is because the automatic principle of this pump is based on the [differential pressure type] control, and when working, it works through the set upper and lower limit pressure values. To put it simply, if you are still using water after the shutdown, the pressure will drop to the lower pressure limit, and the pump will be restarted.

If you are in use, the pump frequently starts and stops, it may be because the upper and lower limits are too close, if: the factory value is set to stop the kilogram pressure, and the kilogram is to start, this state, if you are in use, turn on the faucet for a moment, the pressure will plummet to, at this time the pump will start, the pump will start as soon as it is fast, the pressure value of the pipe network will soon reach the kilogram, and the machine will stop immediately. And so on, so there is your frequent start and stop phenomenon.

The spring differential pressure control switch is already a phased product, he not only controls inaccurately, but also has a large noise when working, and can not accurately set the upper and lower limit pressure values.

Solution: Replace with a ** [differential pressure automatic booster pump] or [JWS-BL horizontal variable frequency booster pump]. Differential Pressure Booster Pump The differential pressure booster pump incorporates a water flow control element.

Why does the automatic booster suction pump start frequently and work unsteadily.

The reason why your pump will start frequently is because the automatic principle of this pump is based on the control of [pressure difference mu rock type], and when working, it works through the set upper and lower limit pressure values. To put it simply, if you are still using water after the shutdown, the pressure will drop to the lower pressure limit, and the pump will be restarted. If you start and stop the pump frequently when you are in use, it may be because the upper and lower limits are too close together, such as:

The factory value is set to stop the kilogram pressure, and the kilogram is going to start, this state, if you are in use, open the faucet for a moment, the pressure will plummet to, at this time the pump will start, the pump is a fast operation, the pressure value of the pipe network will soon reach the kilogram, at this time immediately shut down. And so on, so there is your frequent start and stop phenomenon. The spring differential pressure control switch is already a phased product, he not only controls inaccurately, but also has a large noise when working, and can not accurately set the upper and lower limit pressure values.

Solution: Replace with a ** [differential pressure automatic booster pump] or [JWS-BL horizontal variable frequency booster pump]. Differential Pressure Booster Pump The differential pressure booster pump incorporates a water flow control element.

It is still started when the lower pressure limit is reached, but it does not stop only when the upper limit is reached, but also allows the core to determine whether there is a flow of water, and if there is a flow of water, it will not stop. This feature prevents you from having to reach the upper limit of the network pressure when you are using less water, but because you are using water, it will not stop and cause frequent starts and stops during the water use period, resulting in unstable water pressure. No matter how you use water, he will adjust its speed appropriately according to your water consumption to achieve the purpose of constant pressure water supply.

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Hello dear! We'll be happy to answer for you. What is the reason for the frequent start and stop of the household pressure tank self-priming pump, and how to deal with itA:

1. Due to the long distance and high height of the conveying, the pressure required is larger, and the pressure set on the pressure controller cannot meet the requirements of use, so you can open the controller cover first and then turn the adjustment knob in the middle clockwise upward with a flat-mouth screwdriver to obtain a higher breaking pressure. 2. The reason for the frequent start of the automatic self-priming pump may also be due to the fact that there is no gas in the pressure tank on the self-priming pump, you can unscrew the aerated nut on the pressure tank and add gas to it with a pump to make the pressure tank play a role in stabilizing the pressure. It should be noted that not every automatic self-priming pump has the function of refueling the pressure stabilizing tank, for example, ordinary household self-priming pumps do not have air filling holes, if you need to use a self-priming pump that can refuel the pressure tank, it is recommended to choose:

HM type tap water household self-priming pump 3, because the user installed the self-priming pump inlet and outlet did not install the check valve, resulting in the water returning quickly after the pump stopped, after the outlet pressure dropped, so the automatic self-priming pump will start again after the preset pressure. The solution to the frequent start of this automatic self-priming pump is that the self-priming pump can solve the problem by installing a check valve at the outlet 4, because the faucet is not closed, or there is water flowing out of other places that causes the outlet pressure to drop after the self-priming pump will also be automatically started, check the closed state of the faucet, find the first water leakage phenomenon is the solution to the frequent start of the automatic self-priming pump, the water leakage is not serious, the use of hm type tap water household self-priming pump will not appear frequent start and stop phenomenon. 5. If the automatic self-priming pump is in good condition before using it for a period of time, and there is a sudden phenomenon of frequent start and stop, then it is possible that the automatic switch is broken, and you can replace an automatic switch to see if there is still the fault.

1.If the self-priming centrifugal pump is in good condition before use, the sudden occurrence of frequent start and stop is likely to be the damage of the switch, and the adjustment method is to replace the damaged switch.

2.It is very likely that the self-priming pump will start by itself after the outlet pressure drops due to the faucet not being closed or water flowing out of other locations.

3.The reason for the frequent sound and stop of the stainless steel self-priming pump may also be because there is no gas in the pressure tank above the self-priming pump, and the adjustment method is to unscrew the gas nut on the pressure tank and add gas to it with a pump to ensure that the pressure tank can play a role in stabilizing pressure, and the position of the air filling hole can refer to the structure diagram of the self-priming pump. It is important to note that every self-priming pump can be used to refill the stabilizer tank.

4.Because the pumping distance is long and the height is higher, the required pressure is relatively large, and the pressure set on the pressure controller can not meet the requirements of use, so you can open the controller cover first, and then use a flat screwdriver to turn the adjustment knob in the middle clockwise upward to obtain a higher disconnection pressure for adjustment.

5.Because the user does not install a check valve at the inlet and outlet when installing the self-priming pump, the water stops and returns quickly, and the self-priming pump will start again after the outlet pressure drops below the preset fiber pressure, and the solution to the self-priming pump is to install a check valve at the outlet of the self-priming pump for adjustment.