What is Progressing Cavity Pump ? 

Published by Industrial Pump Parts Hamilton, Ontario Canada

A progressing cavity pump (PCP) is a type of positive displacement pump that is commonly used in a variety of industrial, agricultural, and commercial applications. It consists of two main components: a rotor and a stator. The rotor is a helical screw that rotates inside the stator, which is a flexible rubber sleeve with a continuous cavity that forms a series of seals and pockets. 

As the rotor rotates, it traps fluid in the pockets formed by the rotor and stator. The fluid is then carried from the inlet to the outlet as the rotor rotates. This continuous flow of fluid, with no change in volume, creates a smooth and consistent discharge of fluid at the outlet. 

PCPs are often used in applications where the fluid being pumped is viscous, abrasive, or contains solids. The flexible stator material provides a gentle handling of the fluid, which reduces the risk of damage to the fluid and the pump itself. Additionally, the smooth flow of fluid created by the continuous cavity reduces the risk of cavitation and pump wear, which can increase the lifespan of the pump. 

PCPs are also known for their ability to handle high-pressure applications and are often used in applications that require a high level of precision and consistency in fluid flow. They are often used in applications such as food processing, chemical processing, oil and gas production, and water treatment. 

Maintenance of PCPs is important to ensure that they continue to operate at optimal performance. This may involve regular cleaning and lubrication of the rotor and stator, as well as monitoring of the pump for signs of wear or damage. In some cases, the stator may need to be replaced if it becomes damaged or worn. 

In conclusion, a progressing cavity pump is a type of positive displacement pump that is commonly used in a variety of industrial, agricultural, and commercial applications. It is known for its ability to handle high-pressure applications and viscous, abrasive, or solids-containing fluids. Regular maintenance is important to ensure that the pump continues to operate at optimal performance.