Changsha Zoomlian Pump Co., Ltd. 长沙中联泵业股份有限公司

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    Application and Technical Advantages of Multistage Centrifugal Pumps in Coal Mine Drainage

    In coal mine production, multistage centrifugal pumps are core equipment for critical processes such as mine drainage and coal slurry transportation. Their stable operation directly affects mine safety, production continuity, and the protection of the working environment. With technological advancements, modern multistage pumps have been continuously optimized in terms of efficiency, reliability, and ease of maintenance and operation, making them indispensable fluid-handling equipment in the coal mining industry—often referred to in the industry as “mining multistage pumps.” In this article, Changsha Zhonglian Pump Industry, a manufacturer of multistage centrifugal pumps, will provide a detailed introduction to the applications and technical advantages of multistage centrifugal pumps in coal mine drainage.

    12-08

    2025

    Application and Technical Advantages of Multistage Centrifugal Pumps in Coal Mine Drainage
    Application and Technical Advantages of Multistage Centrifugal Pumps in Coal Mine Drainage

    What factors need to be considered when selecting a wear-resistant multistage pump for non-metallic minerals?

    As an important piece of industrial equipment, wear-resistant multistage pumps for non-metallic mines require consideration of numerous factors during the selection process. These selection factors include flow rate, head, medium characteristics, operating temperature, working pressure, materials, operational reliability, and cost-effectiveness—among many others. Only by comprehensively taking these factors into account can one select the most suitable multistage pump for mine drainage and ensure its reliability. In this article, Changsha Zhonglian Pump Industry, a manufacturer of multistage pumps, shares some key considerations for wear-resistant multistage pumps used in non-metallic mines, providing valuable reference for user organizations.

    12-05

    2025

    What factors need to be considered when selecting a wear-resistant multistage pump for non-metallic minerals?
    What factors need to be considered when selecting a wear-resistant multistage pump for non-metallic minerals?

    Operating Procedures and Precautions for Replacing Mechanical Seals in Chemical Pumps

    Mastering the scientific installation and removal procedures can effectively extend the seal’s service life by more than 30%, reduce downtime losses, and enhance overall operational efficiency. In this article, technical engineers from Changsha Zhonglian Pump Industry, a manufacturer of chemical pumps, will share the operational methods and precautions for replacing mechanical seals in chemical pumps, providing valuable reference for user organizations.

    12-04

    2025

    Operating Procedures and Precautions for Replacing Mechanical Seals in Chemical Pumps
    Operating Procedures and Precautions for Replacing Mechanical Seals in Chemical Pumps

    Why the inlet water temperature of a centrifugal pump must be strictly controlled and the hazards of excessively high temperatures.

    When a centrifugal pump is in operation, an excessively high inlet water temperature is by no means a "minor issue"—rather, it serves as the direct trigger for cavitation. The destructive power of cavitation far exceeds common perception, systematically shortening the service life of the pump unit, causing cascading failures, and resulting in irreversible economic losses. In this article, Changsha Zhonglian Pump Industry, a manufacturer of centrifugal pumps, provides an in-depth analysis—from the microscopic mechanisms to the macroscopic impacts—of why the inlet water temperature of centrifugal pumps must be strictly controlled and highlights the dangers associated with excessively high temperatures.

    12-03

    2025

    Why the inlet water temperature of a centrifugal pump must be strictly controlled and the hazards of excessively high temperatures.
    Why the inlet water temperature of a centrifugal pump must be strictly controlled and the hazards of excessively high temperatures.

    Functions, Principles, and Selection Recommendations for Valves in Multi-stage Pump Systems

    Changsha Zhonglian Pump Industry, a manufacturer of multistage pumps, will provide you with an in-depth analysis of the critical role valves play—and the sophisticated working principles behind them—under high-flow, low-cavitation conditions. We’ll also offer professional guidance on equipment selection and system optimization tailored to your needs.

    12-02

    2025

    Functions, Principles, and Selection Recommendations for Valves in Multi-stage Pump Systems
    Functions, Principles, and Selection Recommendations for Valves in Multi-stage Pump Systems

    Names of Core Wear-Resistant Components and Maintenance Methods for Mine-Use Multi-Stage Centrifugal Pumps

    12-01

    2025

    Names of Core Wear-Resistant Components and Maintenance Methods for Mine-Use Multi-Stage Centrifugal Pumps
    Names of Core Wear-Resistant Components and Maintenance Methods for Mine-Use Multi-Stage Centrifugal Pumps

    Methods for Handling Air Leaks in Horizontal Multistage Centrifugal Pumps

    11-28

    2025

    Methods for Handling Air Leaks in Horizontal Multistage Centrifugal Pumps
    Methods for Handling Air Leaks in Horizontal Multistage Centrifugal Pumps

    Method for Selecting Motors to Be Used with Self-Balancing Multistage Pumps

    11-27

    2025

    Method for Selecting Motors to Be Used with Self-Balancing Multistage Pumps
    Method for Selecting Motors to Be Used with Self-Balancing Multistage Pumps

    The Three Core Challenges Affecting the Service Life of Industrial Circulating Water Pumps

    Taking the chemical industry as an example, various chemical reactions continuously release significant amounts of industrial waste heat. If this heat cannot be efficiently exchanged through circulating water in a timely manner, production equipment is highly susceptible to overheating, leading to malfunctions—or even safety hazards. As the core heat-exchange medium in industrial processes, circulating water effectively removes the heat generated during reactions, ensuring that equipment consistently operates within its designed temperature range and maintaining the seamless continuity of production workflows. While the high-flow capability of circulating water plays a critical role, practical applications of this system still face three major challenges that directly impact both its efficiency and the lifespan of the equipment.

    11-25

    2025

    The Three Core Challenges Affecting the Service Life of Industrial Circulating Water Pumps
    The Three Core Challenges Affecting the Service Life of Industrial Circulating Water Pumps

    The working principle of a self-balancing multistage centrifugal pump (including an animated video)

    This equipment is widely used in high-pressure liquid transfer applications across industries such as mining, petrochemicals, and power generation. Its operating principle revolves around two core concepts: fluid energy boosting and axial force self-balancing. At the same time, by optimizing the hydraulic model, energy losses are minimized, enabling cost control throughout the equipment's entire lifecycle. In this article, Changsha Zhonglian Pump Industry, a leading manufacturer of centrifugal pumps, will introduce the working principles of self-balancing multistage centrifugal pumps. Below is an animated video that will help you gain a clearer, more intuitive understanding.

    11-24

    2025

    The working principle of a self-balancing multistage centrifugal pump (including an animated video)
    The working principle of a self-balancing multistage centrifugal pump (including an animated video)

    Integrated Solutions and Core Technological Advantages of Zhonglian Pump Industry's Smart Pump Station System

    Zhonglian Pump Industry is dedicated to delivering smart pump station systems that integrate advanced IoT, cloud computing, and highly efficient pump technologies. This system represents more than just a simple digital upgrade of traditional pump stations—it serves as the "central nervous system" enabling refined management of critical infrastructure such as urban water supply and drainage, sponge city initiatives, and industrial circulating water systems. At the heart of our smart pump station solutions are core objectives: seamless prefabricated integration, high-performance hardware, and data-driven intelligent operations and maintenance, ensuring customers achieve unparalleled energy efficiency and long-term reliability. In this article, we’ll delve into Zhonglian Pump Industry’s integrated solution for smart pump stations and highlight its key technological advantages.

    11-23

    2025

    Integrated Solutions and Core Technological Advantages of Zhonglian Pump Industry's Smart Pump Station System
    Integrated Solutions and Core Technological Advantages of Zhonglian Pump Industry's Smart Pump Station System

    In-depth Analysis of Causes for Excessive Heating in Centrifugal Pump Bearings, Troubleshooting Methods, and Preventive Measures

    Over the years of engineering experience, Zhonglian Pump Industry has identified abnormal temperature rise in centrifugal pump bearings as a typical failure that requires our utmost attention and precise troubleshooting. This issue not only affects equipment efficiency but also plays a critical role in ensuring the continuous and safe operation of pump stations. Essentially, bearing overheating stems from an imbalance between frictional forces and heat generation. Moving forward, Changsha Zhonglian Pump Industry, a leading manufacturer of centrifugal pumps, will leverage its deep understanding of fluid dynamics and mechanical seals to provide an in-depth analysis of the causes behind bearing overheating, along with practical troubleshooting techniques and preventive measures.

    11-22

    2025

    In-depth Analysis of Causes for Excessive Heating in Centrifugal Pump Bearings, Troubleshooting Methods, and Preventive Measures
    In-depth Analysis of Causes for Excessive Heating in Centrifugal Pump Bearings, Troubleshooting Methods, and Preventive Measures
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