Gn valveless piston pump is high-performance, fine ceramic-plunger mini-metering pump with a unique valveless construction that effectively solves common problems such as blockage and biting encountered by general metering pumps.  

The machining accuracy of the main parts reaches the micron level, achieving ultra-high discharge accuracy. The valveless pump is widely used for micro-precision injection of pharmaceutical liquids and the transportation of various low-to-medium viscosity fluids. The valveless piston pump in this series has high metering accuracy and discharge accuracy of up to 0.5%