The pump teaches you how to choose a good quality pump

The pump manufacturer teaches you how to choose a good quality pump. The pump manufacturer teaches you how to choose a good quality pump. When choosing a pump, you need to distinguish the performance of the pump. The power is not important, but the efficiency of the unit. In the case of the same head and flow, low power and high efficiency mean good performance. Water pumps have the highest head flow and rated head flow marking methods. Most pumps on the market are marked with the highest head flow. Some Zhejiang pumps on the market are marked with outrageous standards, such as ordinary 90w and 120w copper pump head booster pumps. The power is 80w (maximum head 10 meters) and 120w (maximum head 13 meters). In order to obtain good sales, some companies have changed to 100w (maximum head 12-15 meters) and 150w (maximum head 15-20 meters), and the flow rate is also scary. There are also self-priming pumps. The theoretical suction range is 10 meters. Due to the cavitation allowance (water vaporization phenomenon caused by the roughness of the pump head), the effective suction range of the self-priming pump is 8-8.5 meters. However, in order to attract customers' attention, merchants have marked these parameters beyond imagination. Therefore, before buying a pump, you must learn more about the actual parameters of the pump, such as the actual head and actual flow, from the seller, so as not to cause trouble. When the booster pump is working, the flow is maximum when the head is zero, and the flow is zero when it reaches the maximum head. According to the changes of the flow and head of each working condition point, the working curve of the pump can be drawn, which is the characteristic curve of the pump. The selection of the water pump needs to be determined on the spot, such as: the length of the pipe, the size of the pipe, the number of elbows, the capacity of the water heater, the type of the water heater, the water output of the nozzle and so on. Especially the pressure-bearing electric water heater, due to its special device, a pump with a slightly larger water output, such as a household automatic hot water booster pump, must be selected, otherwise the water pump will not be effective. Pipeline pressurization does not mean that everything is fine with the installation of a pipe booster pump. There are many reasons for low water pressure. Typical examples are the aging of pipes, especially galvanized pipes. After years of use, they will gradually rust, resulting in pipe blockage and reduced water flow; There are also too many 90-degree elbows, which will also reduce the water output. The water pressure caused by these reasons is low, and the effect is not obvious after installing the booster pump. The booster pump has a characteristic. When the pipeline flow cannot keep up with or exceed the flow of the water pump, the boosting effect is not obvious. Therefore, it is necessary to investigate the reasons for the low water pressure before purchasing a pump, and you cannot buy a pump blindly. If you want to buy, it is recommended to consult a plumber or find an experienced pump factory staff. The advantage of asking merchants to advise is that in case the water pump booster effect is not ideal, you can confidently request the merchant to exchange or return the product. Water pump manufactureru003c/pu003e
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