What happens to the metering pump self-priming fluid? Do you know? The drug metering pump manufacturer koyu machinery tells you that in the following situations, you will be self-priming:

1. The measured liquid is volatile;

2. Large proportion of liquid measurement;

3. When high stroke frequency is required;

4. The metering pump works at high altitudes;

5. Large storage tanks are required to be used on site, and the metering pump can be used for self-absorption.

Let me share with you some advice on the selection of the metering pump pumps. When it comes to the corrosion of pump head/seal, how can you avoid it?

When it comes to metering pump heads, the usual problem is the presence of acid, chlorine, fluoride and hydrogen peroxide. Depending on the drug concentration and operating temperature, it is difficult to determine the specific pump head material. When measuring fluoride, we recommend Viton? Sealed PVC pump head. For most applications with chlorine, it is preferable to use the NP (plexiglass) pump with EPDM seal. The measurement of hydrogen peroxide mixtures can only be made by PTFE sealed PTFE pump head or stainless steel pump head. The metering of concentrated hydrochloric acid is usually used in Viton? Sealed organic glass pump head. The measurement of concentrated sulfuric acid can select PTFE pump head with PTFE seal.