In the biopharmaceutical industry, zhongmaide ZPP series high-pressure plunger pumps play a key role in the systems of liquid medicine concentration and separation equipment, separation and extraction equipment, traditional Chinese medicine extraction and refining equipment, etc. The membrane separation technology replaces the traditional process, which has the characteristics of low energy consumption, high efficiency, low temperature operation, no phase change in the treatment process, no deactivation of bioactive substances, and can increase the content of active ingredients. In recent years, ZPP series high pressure pumps have been widely used in the separation, concentration and purification of bioactive substances.