About the use of reciprocating metering pumps and diaphragm metering pumps
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Please ask everyone: Which reciprocating metering pump or diaphragm metering pump is of better quality? Thank you!
The quality is very good, which one you choose depends on your usage conditions.
The quality of pumps of the same type is both good and bad. It is difficult to compare the quality of different types of pumps. The key depends on your use. Both types of metering pumps are relatively common. It seems that the diaphragm metering pump is more troublesome to maintain.
The maintenance of the reciprocating type is more convenient. You must buy good quality metering pumps. The domestic ones from Hefei General Machinery Research Institute and Dalian Laurel are good. Of course, the imported ones are just right, small in size and good in quality. Of course, they are more expensive. Don’t buy those from Shanghai and Jiangsu and Zhejiang. They are all garbage.
It mainly depends on your medium. Domestic manufacturers recommend using Chongqing Water Pump Factory. If you have the money, foreign Riva and Milton Roy pumps. Domestic pumps cannot adjust the stroke on the DCS, only frequency converters can. You can also use high-speed centrifugal pumps, but they are not cheap! !