We often think about how to treat the rainwater on rainy days, the sewage generated from the construction site, and the sewage generated after bathing. Discharge, we need to use our professional sewage treatment equipment - dirty water submersible pump. And what kind of dirty water submersible pump is a good dirty water submersible pump, and how should we choose the brand of dirty water submersible pump? The following editor will explain to you how to judge the quality of a dirty water submersible pump through nine performances.

First, traffic

Dirty water submersible pump (sewage pump) flow refers to the displacement per hour, according to your own situation to choose and buy. If you are decorating your 100-square-meter home, and you may only have one kitchen or one bathroom in your home, then you only need to choose a normal flow rate of 5-10m3/h, which is enough. Of course, if you need to add more than one bathroom, or need to discharge washing machine waste water, etc., you can choose a larger flow rate, and if you have the conditions, you can also choose a sewage lifting device with a double pump system; in public places, it is recommended to choose a dirty water submersible pump with a double pump system;

Second, lift

The head of a dirty water submersible pump refers to the maximum height of sewage. Is it better to be higher? Of course not. If you live on the basement floor, your room height may only be 3-5m. It only needs - the actual head of 5-8 meters is enough, but it is necessary to ensure that the flow rate can meet the use when the actual head is 5-8 meters, otherwise, the maximum head is only 5 meters, and the final flow rate is very small. When choosing an integrated dirty water submersible pump, you must pay attention to the changing curve of flow rate and head;

Third, the flow diameter

This refers to the maximum diameter of debris that can be discharged by the water pump drainage pipe. If it is not connected to the toilet, generally 10mm is enough. If the vortex-type sewage hoist connected to the toilet needs to ensure a minimum filtration diameter of 50mm, of course, a cutting-type sewage hoist can also be selected;

The above are the three most important parameters of the sewage hoist. The next question is how do we judge the quality of the sewage hoist? This involves other parameters of the sewage hoist.

Fourth, the security level

Part of the protection level of the small dirty water submersible pump is IP44. Of course, the higher the protection level, the better. For example, the protection level is IP54, and the protection level is IP68. The higher the protection level, the higher the machine's safety, dustproof and waterproof performance;

Fifth, the box material

Generally, the box material of dirty water submersible pump is PP/PE/ABS. It depends on how you use it. ABS has the highest corrosion resistance. HDPE is more suitable for sewage elevators with large boxes. Try not to use it. Choose a stainless steel welded box, because the stainless steel box is only 2-3mm thick, and the final weld will be cracked during the vibration of the pump, leaking water at any time, and later maintenance is very difficult. Generally, well-known big brands will choose to open molds. The dirty water submersible pump of the plastic box formed by permanent casting is more corrosion-resistant and has no hidden danger of water leakage. Because it needs to open a mold, etc., it requires a large investment and certain technology, so the current plastic box is basically made by well-known manufacturers. Only then are the conditions!

Sixth, heat dissipation

When the dirty water submersible pump is running, the speed is very high, and the heat will also be high, and the heat dissipation capacity becomes an important indicator to measure it. It depends on the material of the motor and the material of the motor shell; The dirty water submersible pump companies’ pumps are relatively reliable because most of them don’t have a dry operation, so they can only drop the pumps in the water to cool down, so the pumps for sewage lifting are generally made outside the water tank The pumps in the water tank are relatively good, and the technical content of the pumps in the water tank is generally not too high and the heat dissipation is also poor;

Seventh, start control

That is to say, when the dirty water submersible pump is started and how to control it, most of the pumps on the market are controlled by liquid level and pneumatic. The small dirty water submersible pump is preferably pneumatic, and the pneumatically controlled dirty water submersible pump will not cause the problems of floating ball winding and inability to start, and it is more accurate in control. Commercial dirty water submersible pumps preferably use liquid level control to discharge wastewater containing fixed particles, such as feces.

These are the, more importantly, common sense for purchasing a dirty water submersible pump. In addition to these aspects, the factors we need to consider when purchasing are:

Eighth, service life

It must be as long as possible because replacement and maintenance are more troublesome. Many started to buy cheap dirty water submersible pumps from small factories in order to save costs. In the last few years, the cost of maintenance and replacement has exceeded that of buying a safer and more stable pump. The cost of dirty water submersible pump products is too high, so try to choose well-known dirty water submersible pump manufacturers with more reliable performance, and you can't blindly pursue the price, otherwise, you will lose more financial costs in the end.

Ninth, easy maintenance

Dirty water submersible pump failure will still happen. If there is a failure, it is very difficult for many brands to open and repair. The inner wall of the tank of many brands is generally dirty after a period of time. It mainly depends on the installation position of the pump. Generally, it is easiest to maintain the water pump outside the dirty water submersible pump box, because there is no need to open the box for maintenance; of course, the price of the external sewage lifting equipment is much higher than that of the built-in one, because the external The performance of the installed pump can be excellent, and the manufacturing cost of the whole machine is also higher; at the same time, it depends on whether the equipment has a backwash function. If it does not have a backwash function, it is recommended to choose carefully, otherwise, it will be a headache to clean it by yourself later!

In fact, a dirty water submersible pump can also be installed in our home, because the dirty water submersible pump can clean the drainpipe and remove the wastewater and excrement produced by our daily water use. When we choose a dirty water submersible pump, we must consider its convenience. It is best to choose a dirty water submersible pump that is easy to disassemble and clean, and has a cleaning function, so as not to cause sewage blockage when it fails, and the house is full of odors. . When purchasing, it is best to choose an international well-known brand. We should not only look at its quality but also understand whether its use principle is convenient.