The Screw Pump Sleeve is an essential mechanical part in the structure of a progressive cavity (single screw) pump, serving as both a protective and guiding component for the pump’s rotating elements. Installed around the rotor shaft or within the drive assembly, the sleeve protects critical components such as the rotor, shaft, and seals from direct contact with pumped media, friction, and wear. It also ensures precise alignment, maintains sealing integrity, and contributes to the pump’s overall operational stability.