Cast iron screw pump

Cast iron screw pump‌ is a volumetric pump widely used in various industrial fields. Its working principle is based on the mutual meshing of the screw and the bushing (stator), which produces volume changes in the suction chamber and the discharge chamber to transport liquid.

The characteristics of cast iron screw pumps include:

1. Wide applicability: It can transport high-viscosity media with a viscosity range of 37,000-200,000 centipoise, as well as media containing particles or fibers, with particle diameters of up to 30 mm and fiber lengths of up to 350 mm.

‌2. High solid content delivery: It can transport media with high solid content, and the solid content can generally reach 40% of the volume of the medium. If the solids in the medium are fine powder, the maximum content can reach 60% or more.

‌3. Stable pressure: The flow rate is uniform and the pressure is stable, especially at low speed. The flow rate is proportional to the speed of the pump and has good variable adjustability.

‌4. One pump for multiple uses: It can transport media of different viscosities and is suitable for transporting sensitive items and items that are easily damaged by centrifugal force.

5. Simple structure and easy maintenance: small size, light weight, low noise, simple structure and easy maintenance.

Cast iron screw pumps have a wide range of applications and are suitable for occasions where high viscosity and high solid content media need to be transported, such as chemical, environmental protection, food processing and other industries.

The design and manufacturing materials of cast iron screw pumps enable them to operate stably for a long time in harsh working environments. At the same time, their flow and pressure ranges are wide, which can meet the needs of different applications.