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Chemiquip Engineers well known manufacturer of Progressive cavity screw pumps, it is also known simply as progressive cavity pumps or PC pumps, are a type of positive displacement pump used for pumping viscous or shear-sensitive fluids with high solid content. They operate based on the principle of the interaction between a rotating screw-shaped rotor and a stationary elastomeric stator.
1. Rotor and Stator: The pump consists of a helical rotor (screw) that rotates inside a double helix elastomeric stator (usually made of rubber or synthetic materials). The rotor is typically made of metal.
2. Progressive Cavity: As the rotor turns inside the stator, cavities are formed and progress along the length of the rotor-stator assembly. This progression creates a continuous seal between the rotor and the stator, effectively trapping the fluid inside these cavities.
3. Fluid Movement: As the rotor rotates, the fluid is carried through the pump from the inlet to the outlet. The cavities formed between the rotor and the stator move the fluid axially along the pump's length. This movement is smooth and pulsation-free, making progressive cavity pumps suitable for applications requiring a constant flow rate.
4. Discharge: The fluid is discharged at the end of the stator as the cavities reach the outlet port. The discharge is typically uniform and continuous.
These pumps find applications across various industries, including wastewater treatment, food processing, oil and gas, chemical processing, and more. They are particularly useful in applications involving the transfer of viscous fluids, sludges, slurries, and abrasive materials.
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