Bearings are indispensable components in many mechanical devices, playing a vital role in reducing friction between moving parts. Two common bearing arrangements are Between Bearings (BB, double-supported) and Overhung (OH, cantilevered). These configurations each have distinct characteristics and suit different working conditions. Introduction

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.

In the selection and application of screw pumps, TEFFIKO has always been committed to providing solutions that fit actual working conditions. Both single screw pumps and twin screw pumps can meet diverse conveying needs with their unique performances. To help customers make selections, TEFFIKO elaborates on the following aspects of core differences and application ranges:

The flow paths of fluids are often precisely regulated by pumps. Whether it's transporting corrosive media in a chemical workshop or maintaining water circulation in building pipelines, pumps are always the core hubs for fluid control. Due to the diversity in working principles, structural forms, and application scenarios, pumps have formed a rich system of types. Clearly understanding these classifications and their advantages enables us to find the most suitable fluid transportation solutions under different working conditions.

Water pumps are indispensable devices in modern industry and daily life, playing a crucial role across various fields such as water supply, drainage, manufacturing, and agriculture. Whether it's providing clean water for households or transporting liquids in industrial settings, water pumps serve as the backbone of fluid handling systems.

Centrifugal pumps dominate industrial fluid transport for efficiency and stability. This guide uses a 3-step method—media analysis → parameter matching → structural optimization—to streamline pump selection.