As a representative of positive displacement pumps, screw pumps are widely used in industries such as petroleum and chemical engineering due to their compact structure, stable operation, and adaptability to complex media. They particularly excel in conveying high-viscosity fluids, particle-laden media, or shear-sensitive materials. However, in practical applications, improper selection often leads to issues such as low efficiency, increased energy consumption, and frequent failures, primarily because users focus only on basic parameters like flow rate and head while neglecting medium characteristics, operating conditions, and long-term costs. This article analyzes common selection misconceptions and provides systematic, science-based methods to help users accurately match equipment needs and enhance the overall efficiency and economy of pumping systems.

How to Read This Pump Type Spectrum Diagram

If you're after a pump that's tough, efficient, and built to last, the Open Top Type Single Screw Pump should be at the top of your list.

In the vast industrial system, there is an "invisible strongman" silently playing a crucial role, and it is the centrifugal pump. From the water flowing out of your faucet to the complex production processes in factories, centrifugal pumps are everywhere, yet rarely noticed. Today, let's uncover its mystery together.

The flow rate (Q) of a centrifugal pump is a key parameter for measuring its conveying capacity, which directly affects the system design and operation efficiency. This article will deeply analyze the flow rate calculation formulas, influencing factors, and engineering calculation methods to help engineers make accurate selections and optimize operations.

Centrifugal pumps and multistage pumps are key fluid-conveying equipment. Single-stage centrifugal pumps transport liquids via centrifugal force from a single impeller, featuring simple structure and easy maintenance, suitable for medium-low head and large-flow scenarios. Developed from centrifugal pumps, multistage pumps achieve high head through multi-stage pressurization with multiple impellers, with more complex structure and high sealing requirements, fitting high-pressure scenarios. Each has its strengths; selection depends on head, flow and working conditions to ensure efficient conveyance.