Problem

Problem classification

Why is my mechanical seal damaged in a short time, and the pump is leaking?

A,The service life of mechanical seal is closely related to the medium state of pump transmission. The more pure the medium is, the less time the mechanical seal is used.
B,The installation of mechanical seals has strict requirements, such as flatness, concentricity and compression amount. If maintenance and replacement are not properly installed, mechanical seals will be damaged quickly.
C,Please select the mechanical seal correctly, and the incorrect selection will lead to the failure of the medium in advance.

The import and export section of the rotating jet pump is left and right out. Can the user adjust itself to the right and left out?

The design of the rotary jet pump has taken full account of various conditions. Therefore, the existing design is the most reasonable. Therefore, it is not recommended that the user adjust the direction of the import and export section voluntarily, and suggest that the user change the pipeline direction. If the adjustment of the import and export section is right and left, the following problems will be brought
A, with organic seal hole, the machine seal flushing hole will convert to the end, and it is inconvenient to use.
B, the key slot of the receiving tube is changed to the top, and the key is not well installed.
C, receives the nozzle from the original in the rotor cavity into the rotor cavity at the bottom of the top (single receiving mouth), irrigation pump only to the center of the rotor (the rotor part can not guarantee the full operation (liquid) prone to mechanical seal damage, cavitation, etc.) and receiving mouth at the bottom as special delivery the medium is easy to be blocked.

Does the medium of the rotating jet pump vary in the medium, and are there any differences in the mechanical seal installed?

For different media is not the same as the mechanical sealing requirements, so it is not a mechanical seal can be applied to any medium, a mechanical seal is more durable in conveying a medium, but the same machine seal when replacing the conveying medium after a lot of problems occur, such as: transfer of heavy oil mechanical seal and the transport of water the mechanical seal can not be universal, so users in the selection and purchase of mechanical seal needs to be cautious.

How does the rotary jet pump be selected?

The rotary jet pump is different from other types of pumps. It can select the full flow head curve, and can simply change the pump speed or the size of the receiving pipe to get a completely different flow head curve, which is difficult to achieve for other types of pumps.

Can the user change the working condition of the pump by itself?

Rotary jet pump factory after strict selection (for example: motor power, pump type etc.), nameplate on a suitable working conditions, such as the change of jet pump factory conditions may lead to motor overload, the intensity of pump material is not up to the requirements, the pump use lifetime and pump operation instability (flow) etc. Therefore, the user is prohibited at changing the pump working conditions, such as the need to change please consult the manufacturer, by the manufacturer to determine whether can change and change what needs adjustment.

How does the rotary jet pump ensure full irrigation?

A valve is installed at the outlet pipe of the rotating jet pump. By observing the flow of the liquid in the valve, it can be found that the pump is full. (the receiving nozzle of the receiver is always at the highest point of the rotor cavity. When the rotor is not filled, the liquid cannot reach the receiver and flow out of the receiver).

Which parts of the rotating jet pump belong to the consumables?

Mechanical seal, receiving tube, "O" type seal ring, skeleton oil seal and so on belong to consumable goods.

What should be noticed in the field installation of the rotating jet pump?

A, if the motor used is a frequency conversion special motor and has a dedicated cooling fan, please arrange the 2 line to the pump, the frequency conversion line is used for the motor, and the non frequency conversion line is used for the motor cooling fan.
B, please install the pump observation valve at the outlet pipe of the pump.
C, pipeline installation before the completion of the pump line, please clean the pipeline, so as not to install the pump when the larger particles into the pump to bring unpredictable problems.

What is the relationship between the pressure of the pump and the lift?

The pump head is a characteristic of the pump itself, will not change because of the change of the transmission medium, but the pump pressure will change with the change of the transmission medium, when the pump transmission medium for room temperature water when the pump head can be roughly translated into pressure (about 10m 1kg), so we need to choose the right head according to the different transmission media of the pumps in the pump type selection.

What is the relationship between the flow of the rotating jet pump and the lift?

From the performance curve of rotating jet pump can be seen when the flow is greater when the head of the lower, and more hours when the flow head is not high, so the pump low pressure shaft power will be consumed, the conventional pump low pressure will flow increases, so the cost of shaft power becomes larger. So please choose the right order of pump flow, head, back at least as much as possible, in order to achieve the purpose of energy saving.

Can the rotor of a rotating jet pump be replaced by any material?

Material selection of the rotor is calculated after intensity, temperature and speed with the specified subscript material can be applied, but when the user transporting different medium replacement material flow components or medium exceeds a specified temperature, rotor material selection through calculation to determine whether to apply any material not easy replacement of the rotor the unpredictable situation, so the user may use the pump to change the order condition.

Why do you need to provide detailed medium parameters when ordering the pump?

The detailed parameters of the medium play a decisive role in the selection of the pump motor power, the material of the overflowing parts, the material of the seal and the material of the machine seal. The more detailed the media parameters, the better the applicability of the pump and the longer the life.

Can the outlet valve of the pump be fully open?

Please do not export the valve during the operation of pump pump are all opened, please strictly control the flow to prevent cavitation, overload condition occurs, such as operating habits need to export the valve fully open, please in the export pipeline and limit flow device limits the valve fully open when the flow rate in the range of rated flow.

Does the piping layout of the system have an impact on the pump?

The piping layout of the system is carried out according to the "piping layout specification", and the improper piping layout will directly affect the normal use of the pump. Pipeline layout will affect the system's cavitation allowance, pump exhaust and so on. Therefore, we must strictly follow the "piping layout specification" in pipeline layout, especially pay attention to avoid forming air bags, and pay attention to the use of eccentric big head (top level, bottom level).

Does the use of check valves in the piping system have an impact on the use of the pump?

The check valve can be used in the pipeline system, but in the process of using the pump, we must not press the system pressure into the pump, so as not to seal the low pressure of the rotary jet pump seal to bear high pressure and cause leakage.

Why is my mechanical seal damaged in a short time, and the pump is leaking?

A,The service life of mechanical seal is closely related to the medium state of pump transmission. The more pure the medium is, the less time the mechanical seal is used.
B,The installation of mechanical seals has strict requirements, such as flatness, concentricity and compression amount. If maintenance and replacement are not properly installed, mechanical seals will be damaged quickly.
C,Please select the mechanical seal correctly, and the incorrect selection will lead to the failure of the medium in advance.

The import and export section of the rotating jet pump is left and right out. Can the user adjust itself to the right and left out?

The design of the rotary jet pump has taken full account of various conditions. Therefore, the existing design is the most reasonable. Therefore, it is not recommended that the user adjust the direction of the import and export section voluntarily, and suggest that the user change the pipeline direction. If the adjustment of the import and export section is right and left, the following problems will be brought
A, with organic seal hole, the machine seal flushing hole will convert to the end, and it is inconvenient to use.
B, the key slot of the receiving tube is changed to the top, and the key is not well installed.
C, receives the nozzle from the original in the rotor cavity into the rotor cavity at the bottom of the top (single receiving mouth), irrigation pump only to the center of the rotor (the rotor part can not guarantee the full operation (liquid) prone to mechanical seal damage, cavitation, etc.) and receiving mouth at the bottom as special delivery the medium is easy to be blocked.

Does the medium of the rotating jet pump vary in the medium, and are there any differences in the mechanical seal installed?

For different media is not the same as the mechanical sealing requirements, so it is not a mechanical seal can be applied to any medium, a mechanical seal is more durable in conveying a medium, but the same machine seal when replacing the conveying medium after a lot of problems occur, such as: transfer of heavy oil mechanical seal and the transport of water the mechanical seal can not be universal, so users in the selection and purchase of mechanical seal needs to be cautious.

How does the rotary jet pump be selected?

The rotary jet pump is different from other types of pumps. It can select the full flow head curve, and can simply change the pump speed or the size of the receiving pipe to get a completely different flow head curve, which is difficult to achieve for other types of pumps.

Can the user change the working condition of the pump by itself?

Rotary jet pump factory after strict selection (for example: motor power, pump type etc.), nameplate on a suitable working conditions, such as the change of jet pump factory conditions may lead to motor overload, the intensity of pump material is not up to the requirements, the pump use lifetime and pump operation instability (flow) etc. Therefore, the user is prohibited at changing the pump working conditions, such as the need to change please consult the manufacturer, by the manufacturer to determine whether can change and change what needs adjustment.

How does the rotary jet pump ensure full irrigation?

A valve is installed at the outlet pipe of the rotating jet pump. By observing the flow of the liquid in the valve, it can be found that the pump is full. (the receiving nozzle of the receiver is always at the highest point of the rotor cavity. When the rotor is not filled, the liquid cannot reach the receiver and flow out of the receiver).

Which parts of the rotating jet pump belong to the consumables?

Mechanical seal, receiving tube, "O" type seal ring, skeleton oil seal and so on belong to consumable goods.

What should be noticed in the field installation of the rotating jet pump?

A, if the motor used is a frequency conversion special motor and has a dedicated cooling fan, please arrange the 2 line to the pump, the frequency conversion line is used for the motor, and the non frequency conversion line is used for the motor cooling fan.
B, please install the pump observation valve at the outlet pipe of the pump.
C, pipeline installation before the completion of the pump line, please clean the pipeline, so as not to install the pump when the larger particles into the pump to bring unpredictable problems.

What is the relationship between the pressure of the pump and the lift?

The pump head is a characteristic of the pump itself, will not change because of the change of the transmission medium, but the pump pressure will change with the change of the transmission medium, when the pump transmission medium for room temperature water when the pump head can be roughly translated into pressure (about 10m 1kg), so we need to choose the right head according to the different transmission media of the pumps in the pump type selection.

What is the relationship between the flow of the rotating jet pump and the lift?

From the performance curve of rotating jet pump can be seen when the flow is greater when the head of the lower, and more hours when the flow head is not high, so the pump low pressure shaft power will be consumed, the conventional pump low pressure will flow increases, so the cost of shaft power becomes larger. So please choose the right order of pump flow, head, back at least as much as possible, in order to achieve the purpose of energy saving.

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T +86-573-88112730 Eishan@ishan.com.cn

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