This series of screw pumps are made of high-quality stainless steel, featuring stable operation, low noise and strong self-priming capacity. They can convey particles, high-viscosity and corrosive media. With compact structure and good sealing performance, they achieve zero leakage, stable pressure and uniform flow, widely used in chemical, pharmaceutical, food, coating and sewage treatment industries. The pumps are wear-resistant and corrosion-resistant without damaging materials during conveying, reliable in operation and easy to maintain. Rotating speed, diameter and materials can be customized to meet various complex fluid delivery needs. Featuring reasonable design and long service life, they are ideal and efficient pumps for various fluid delivery systems.