The renewal and replacement of mechanical products is very fast. Some products have completed transformations that have not been completed in the past few decades in just a few years, for example. The number of pump types nowadays is very large. If they are classified according to the operation mode, they can be roughly divided into three types of operation: manual operation, automatic operation, and frequency conversion operation.

Manual: This is a more traditional stainless steel metering pump operation method. As the name implies, it requires hands to perform traditional, measurement and adjustment of liquids. Because the manual method is adopted, the error will inevitably be larger. The only advantage is that the price is relatively cheap, and currently only a part of individual users are using it.

Auto: This type of operation is currently more mainstream. It can automatically complete the three major functions of transportation, measurement and adjustment, saving users and enterprises a lot of time and energy. The ease of operation has also greatly increased the sales of this type of stainless steel metering pump. Compared with the manual type, its advantages are more obvious.

Frequency conversion: This is a relatively excellent type at present. It can adjust the basic functions of the pump by changing the frequency, making the pump suitable for various environments and needs, greatly improving its performance and meeting the needs of users. However, its price is relatively high, which is also the main factor restricting the purchase of users and enterprises.