Q: How to convert the power of the pump to kilowatts?
A: The actual power conversion table of the pump is as follows: 1HP=0.75KW

The causes and treatment of insufficient flow of pipeline centrifugal pump



1. The steering of the pipeline centrifugal pump is wrong

Solution: Adjust the motor wiring



2. Pipeline centrifugal pump speed is too low

Solution: Check the speed and increase the speed



3. The static lift of the pipeline centrifugal pump conveying system is increased

Treatment method: Check the medium height and system pressure



4. The resistance loss of pipeline centrifugal pump increases

Solution: Check the management and check valve and other obstacles



5. The wear ring of pump shell and impeller of pipeline centrifugal pump is too large

Treatment method: Replace or repair the wear ring and pipeline centrifugal pump impeller



6. Leakage of pipeline centrifugal pump

Solution: Check the shaft seal and replace it with a new one



7. The impeller of pipeline centrifugal pump is blocked, worn and corroded

Treatment: cleaning, inspection, replacement

Q: Why do VMP vertical multistage centrifugal pumps need to lift the pump shaft when installing the motor?

A: VMP vertical multistage centrifugal pump installation requires the tool to lift the whole series of rotor 2mm, tighten the bolt on the clamp coupling, complete the rigid connection between the pump shaft and the motor shaft, which is especially important for customers who only buy the pump head back to install, the result of not lifting is the pump operation is difficult, seriously cause motor burn and bottom impeller damage.

Q: What material should be used to pump seawater, 316 stainless steel, duplex stainless steel or titanium?



A: This is a problem of pump selection for many pump companies (including, of course, Aitke pump industry). According to the experience of visiting the site after pump selection for customers, it is summarized as follows:

1. Austenitic stainless steel stainless steel pump has very poor chloride ion corrosion resistance, and dual-phase stainless steel corrosion resistant pump has much better seawater corrosion resistance at room temperature than austenitic stainless steel

2. For the order bits from high to low pitting equivalent: 2507 2205 2304 317L 304L;

3. Below 20℃, even the proportion of pitting in 304L is small, but it rises sharply above 20℃; The corrosion of 2205 steel only occurs when it reaches 80 degrees and 2%Cl ion concentration. Duplex stainless steel is often used to build offshore Bridges in foreign countries.

4. For Cl ion resistance at high tem

Q: The relationship between the outlet pressure of the stainless steel pump and the pump head?

A: The new colleagues who just entered the Aitek pump industry encountered such a problem, the selection manual of stainless steel pump is generally marked with the lift of the pump, but there are often customers, especially technical engineers, who ask how much water pressure and lift of your pump, and many new colleagues do not know how to choose in this situation.

In fact, it is very simple, the outlet pressure of the stainless steel centrifugal pump or the outlet pressure is equal to the sum of the inlet pressure of the pump and the outlet head of the pump, so you remember to calculate the suction or inlet pressure of the pump when choosing the pump head, otherwise it will cause a selection error.