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How to choose a metering pump?

Released Date: Aug 27,2015 Article Source: Yuanlai Water Treatment
The metering pump mainly consists of three parts: power drive, fluid transportation and regulation control. Metering pumps can be classified into motor-driven, electromagnetic driven and pneumatic types based on their power drive. According to the fluid transportation mode, they are classified into plunger pumps and diaphragm pumps. Diaphragm pumps are further divided into mechanical transmission diaphragm pumps and hydraulic transmission diaphragm pumps. Since the coagulants used in water treatment projects are mostly corrosive liquids, diaphragm pumps are often adopted. When choosing a metering pump, it is generally necessary to know the rated pressure, rated flow rate, type (diaphragm type or plunger type), and flow-through material. The rated pressure of a metering pump usually refers to the outlet pressure. When selecting a model, it is generally advisable to choose a rated pressure that exceeds the actual operating pressure by 10% to 20%. This not only saves resources and reduces costs but also improves the metering accuracy of the metering pump during actual use. When the metering pump is in operation, it is generally at a rated flow rate of 10

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The metering pump mainly consists of three parts: power drive, fluid transportation and regulation control. Metering pumps can be classified into motor-driven, electromagnetic driven and pneumatic types based on their power drive. According to the fluid transportation mode, they are classified into plunger pumps and diaphragm pumps. Diaphragm pumps are further divided into mechanical transmission diaphragm pumps and hydraulic transmission diaphragm pumps.

Since the coagulants used in water treatment projects are mostly corrosive liquids, diaphragm pumps are often adopted. When choosing a metering pump, it is generally necessary to know the rated pressure, rated flow rate, type (diaphragm type or plunger type), and flow-through material. The rated pressure of a metering pump generally refers to the outlet pressure. When selecting a model, it is usually chosen if the rated pressure exceeds the actual operating pressure10%~20%It is of the best quality, which can not only save resources and reduce costs, but also improve the metering accuracy of the metering pump in actual use. When a metering pump is in operation, it is generally at the rated flow rate10%~90%The measurement accuracy between them is relatively high. Therefore, when choosing the rated flow rate, it is generally selected that the rated flow rate should be equal to or slightly greater than the flow rate required by the process.

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