What is the purpose of a progressive cavity pump?

Progressive cavity pumps are ideal for pumping fluids that have higher viscosities . With a centrifugal pump, the flow rate goes down as the fluid viscosity goes up. This is far less efficient, as the pump must then increase its energy consumption in order to keep up.

What is the NPSH requirement for a progressive cavity pump?

A progressive cavity pump requires much lower Net Positive Suction Head (NPSH) as compared to a centrifugal pump because the internal pump velocity is lower . A progressive cavity pump can pump when the suction pressure is as low as 28" of mercury (Hg), a centrifugal pump cannot do this.

What are the limitations of a progressive cavity pump?

Due to their positive displacement, they can be sensitive to dry running if not sufficiently lubricated, leading to increased wear . Another factor is the limited pumping speed compared to other pump types such as multi screw pumps, which can make them difficult to adapt to high flow rate applications.

progressing cavity pumps

What are progressing cavity pumps？

Progressing cavity pumps, also known as PC pumps or screw pumps, are a type of positive displacement pump that uses a single rotating element to move fluids through a sequence of small, fixed-shape cavities. They are commonly used in various industries for fluid transfer applications due to their ability to handle viscous and abrasive materials without causing damage to the pumped media.

The description of progressing cavity pumps

Progressing cavity pumps, also known as PC pumps or screw pumps, are positive displacement pumps that use a single rotating element to move fluids through a sequence of small, fixed-shape cavities. The design of the pump enables it to handle viscous and abrasive materials without causing damage to the pumped media.

The features of progressive cavity pump spare parts

Progressing cavity pumps offer several features that make them an ideal choice for many fluid transfer applications. They are versatile in handling a wide range of fluids, including low-to-high viscosity liquids, slurries, and solids-laden materials. Due to their positive displacement design, they provide constant flow rates at a relatively low speed, resulting in less energy consumption compared to other types of pumps. Their gentle pumping motion helps preserve the integrity and quality of delicate products like food, pharmaceuticals, and chemicals. Additionally, they have minimal pulsation due to their smooth and steady flow.

The application of progressing cavity pumps

Progressing cavity pumps are commonly used in various industries for fluid transfer applications. In the oil and gas industry, they are ideal for both upstream and downstream applications, including crude oil transfer, drilling mud circulation, and hydraulic fracturing. In the food and beverage processing industry, progressing cavity pumps are used to transfer a variety of food products, such as dairy, juice, syrups, and sauces. In chemical and pharmaceutical manufacturing, they are suitable for transferring sensitive and hazardous substances, including acids, bases, solvents, and vaccines. Moreover, their robust construction and ability to handle solids make them an excellent choice for municipal and industrial wastewater treatment systems.