中文How to purchase a cam rotor pump correctly
2020-12-27
1. Self parameters
It is necessary to determine one's own parameters, such as the maximum sewage flow rate during peak periods. This can be determined based on the number of drainage outlets, which can be calculated by professional technicians.
2. Head
We also need to consider the head, as insufficient head can cause the ground medium to be unable to be discharged normally, and even lead to the phenomenon of medium backflow; If the head is too high, it will lead to the waste of subsequent resources. Generally speaking, the appropriate head is the vertical height from the bottom of the medium to the water pipe network. If you are not sure about the head you need, professional personnel can measure it on site.
3. Types of sewage media
It is also necessary to know the type of medium in order to choose a water pump with a specific inlet and rotor. If the sewage contains particulate matter, a ground sewage lift pump should be chosen. If the sewage contains fibers, a cutting type sewage lifting pump should be selected. Of course, if it is a source of sewage such as a washing machine or a washbasin that produces almost no impurities. It is recommended that everyone choose a regular rotor sewage pump, which is more conducive to cost savings.
4. Heat dissipation
When the cam rotor pump is running, the speed is very high, and the heat is also very high, so the heat dissipation ability becomes an important indicator to measure it. Looking at the material of the motor and the material of the motor housing, it can be seen that the cam rotor pump is usually made better when it is located outside the water tank. The pump inside the water tank generally has low technical content and poor heat dissipation.
5. Box material
The general materials for the casing of the sewage cam rotor pump are PP/PE/ABS, with ABS having the highest corrosion resistance. HDPE material is more suitable for large casing sewage lift pumps. However, it is advisable not to choose a stainless steel welded casing, as the vibration of the water pump can cause cracking and leakage at any time, making maintenance very difficult in the later stage.
6. Service life
The longer it is, the better, because replacement and maintenance can be quite troublesome. Many people started to purchase low-cost pumps in order to save costs, but in the last few years, the maintenance and replacement costs had exceeded the cost of purchasing a safer and more stable cam rotor pump at that time. So it is more reliable to choose well-known sewage pump manufacturers as much as possible.
7. Difficulty in maintenance
It mainly depends on the installation position of the pump. Generally, the cam rotor pump is the easiest to maintain outside the sewage lifting pump casing. Because there is no need to open the casing during maintenance, of course, the price of external pump equipment is much higher than that of internal ones, because the performance of external pumps is excellent and the overall manufacturing cost is also higher. At the same time, check if the device has a backwash function. If it does not have a backwash function, it is recommended to choose carefully, otherwise it will be very difficult to clean it later on.
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