A Motor Screw Pump is a type of positive displacement pump that uses a helical rotor to move fluid through a chamber. These are positive displacement pumps, meaning they deliver a constant amount of fluid for each rotation of the pump. The pump typically consists of a helical rotor that rotates within a stator. The rotor may have a single helix or multiple helices. The materials used for the pump's rotor and stator should be compatible with the fluid being pumped to prevent corrosion or degradation. Motor Screw Pump is chosen for its ability to handle challenging fluid characteristics, making them suitable for applications where other pump types may struggle.