Function: Realize quantitative feeding. Product features: A. Compact structure, high finish, easy to install and control. B. Suitable for vacuum and high pressure environment. C. It can be designed and manufactured according to the requirements of GMP. D. It is suitable for conveying powder, particle and colloid. Product application: A. Applied to weighing system, it can achieve accurate measurement. B. Loading and unloading can be completed in one step. C. It is mainly used in pharmaceutical, food, cosmetics and fine chemical industries.