Dosing pumps common fault and maintenance methods

Dosing metering pumps common failures are low speed, suction stroke is too large, the flow of water out of the resistance loss is too large, etc., since we know that these failures are common in our daily lives, then the fault repair The method should arouse our attention, the following Xiaobian to talk about the dosing pump common breakdown and the maintenance method now! First, dosing metering pump low speed (1) human factors. Some users due to the original motor damage, it is coupled with another motor driven, the result of a small flow, low lift or even the consequences of the water. (2) dosing pump itself mechanical failure. Impeller and pump shaft nut loose or deformation of the pump shaft bending, resulting in more impeller move, directly with the pump friction, or bearing damage, are likely to reduce the dosing metering pump speed. (3) power machine repair is not working. Motor winding due to burn, and loss of magnetism, the maintenance of the winding turns, diameter, wiring changes, or maintenance failure is not completely ruled out the factors that will change dosing metering pump speed. Second, dosing metering pump suction too deep Some of the water is deep, some of the water's outer periphery is relatively flat, while ignoring the dosing pump allowable suction, resulting in less water or simply can not absorb the results of the water. To know the dosing pump suction port can establish the degree of vacuum is limited, the absolute vacuum suction about 10 meters high water column, and dosing metering pumps can not establish an absolute vacuum. And the vacuum is too large, easy to make the pump gasification, dosing metering pumps work is not good. Therefore, the centrifugal pump has its maximum allowable suction, usually between 3-8.5 meters. Do not install the dosing pump metering only simple and convenient. Third, the flow of water out of the resistance loss is too large Some users after the measurement, although the reservoir or water tower to the water surface of the vertical distance is slightly less than the dosing pump head, but still mention the amount of water is small or mention the water. The reason is often too long pipes, pipe corners, water flow resistance in the pipeline is too large loss. The reason is often too long pipes, pipe corners, water flow resistance in the pipeline is too large loss. Under normal circumstances, 90-degree elbow bend than the 120-degree bend resistance, each 90-degree elbow head loss of about 0.5-1 meters, 20 meters of pipe resistance can make head loss of about 1 meter. In addition, some users are also free to add medicine metering pumps into and out of the tube diameter, these have a certain impact on the lift. Fourth, the impact of other factors (1) can not open the valve at the end. Usually due to dosing metering pump set aside time is too long, the bottom valve gasket was stuck, the bottom valve without gasket may rust. (2) The bottom valve filter screen is clogged; or the bottom valve causes potential clogging of the filter screen in the sludge layer. (3) impeller wear serious. Impeller blades worn by long-term use, affecting the dosing pump performance. (4) Gate valve can check valve failure or blockage will result in reduced flow or even pumping on the water. (5) Leakage of the outlet pipe will also affect the amount of water lift. The above is the dosing pump common fault: low speed, suction stroke is too large, the flow of water out of the resistance loss is too large and so on the reasons for the analysis and maintenance methods, I hope you will be able to master it, if encountered in the future Problem, you can easily solve it. Further reading: IFAT China Guangzhou exhibition industry leaders building water pump manufacturers ranking article belongs to Internet industry (Xiamen) Co., Ltd. All are welcome to reprint, please indicate the source and author of: Asian pumps Network Editor: lindj (QQ / WeChat:) Starting: http://beng.liuti.cn/ (Service Hotline:)