What are the differences between a centrifugal stainless steel pump and a positive displacement stainless steel pump?

Centrifugal stainless steel pumps and positive displacement stainless steel pumps are two types of pumps commonly used in various industrial applications.

Centrifugal pumps work by using a rotating impeller to create a flow of fluid. The impeller spins at a high speed, creating centrifugal force that moves the fluid through the pump and into the discharge pipe. The design of centrifugal pumps is such that they can move large volumes of fluid at relatively low pressures.

On the other hand, positive displacement pumps work by trapping a fixed amount of fluid and then forcing it through the pump and into the discharge pipe. Positive displacement pumps create a constant flow rate regardless of the pressure, making them ideal for applications where a consistent flow rate is required.

In terms of construction, centrifugal pumps have a simpler design compared to positive displacement pumps. Centrifugal pumps typically have fewer moving parts, making them easier to maintain and less prone to breakdowns. Positive displacement pumps, on the other hand, have a more complex design with a greater number of moving parts, making them more difficult to maintain.

Stainless steel is a common material used in both types of pumps due to its resistance to corrosion and ability to handle a wide range of fluids. However, the type of stainless steel used may vary depending on the application and the fluid being pumped.

Centrifugal stainless steel pumps are best suited for applications where high flow rates and low to medium pressures are required, while positive displacement stainless steel pumps are ideal for applications where a constant flow rate is required regardless of the pressure.