Industry News

In industrial fluid control systems, centrifugal pumps and roller pumps represent two distinct fluid delivery logics. As two main workhorses in the industrial sector, rotary roller pumps and vane centrifugal pumps follow different design philosophies, each suited for completely different process requirements. This article provides an in-depth analysis of the inherent differences between these two pump types, offering a practical engineering selection guide.

In the field of fluid transfer in modern industry, traditional centrifugal pumps often struggle when handling complex media such as high-viscosity fluids, particle-laden fluids, and even gas-liquid mixtures, while screw pumps frequently suffer from high maintenance costs. As a positive displacement pump, the cam rotor pump has been widely adopted across various industries to address pain points in fluid transfer. With its unique advantages, it has become the preferred choice for an increasing number of enterprises.

Cryogenic Centrifugal Pump is a specialized fluid conveying equipment developed for transporting ultra-low temperature media, with the applicable medium temperature generally below -150°C. Compared with ordinary centrifugal pumps, this equipment adopts special cryogenic materials and precision sealing structures, featuring excellent thermal shock resistance, enabling safe and efficient delivery of low-temperature liquid gases such as liquefied natural gas (LNG), liquid oxygen, liquid nitrogen, liquid argon, and liquid hydrogen.

In industrial fluid transfer, building HVAC systems, and municipal water supply systems, you will always find a familiar piece of equipment—the end-suction centrifugal pump.

A volute centrifugal pump is a type of dynamic pump that converts mechanical energy into hydraulic energy through the rotation of an impeller and relies on a spiral volute casing for efficient fluid delivery. Unlike other types of centrifugal pumps, its most prominent feature is the volute-shaped casing (also known as a spiral casing), which is the core component distinguishing it from models such as diffuser centrifugal pumps. Volute centrifugal pumps feature robust construction, relatively low cost, quiet operation, and reliable performance, with minimal impact from corrosion and erosion. They are the preferred equipment for most industrial and civil fluid delivery applications.

The transfer of high-viscosity fluids (such as heavy oil, resin, asphalt, syrup, polymers, ink, sludge, etc.) is a common yet challenging task in numerous industrial fields, including chemical, petroleum, food, pharmaceutical, and even environmental sludge treatment. Many engineers struggle with the "high viscosity" of fluids during pump selection: ordinary centrifugal pumps fail to deliver or suffer a sharp drop in efficiency; selecting the wrong pump type not only leads to a surge in energy consumption but also may cause frequent equipment failures, even production shutdowns, resulting in huge losses.