The ZONESUN ZS-QBY-K25 pneumatic diaphragm pump is designed for flexible, high-viscosity fluid transfer in industrial settings. Ideal as a pre-stage transmission device in solid-liquid separation systems, it efficiently pumps viscous materials like peanut butter, tomato slurry, chocolate, and other paste-like substances. Its air-operated design enables versatile installation with various equipment, supporting a wide range of production processes.