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

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    Sharing Development Opportunities, Zoomlion Pump Makes Appearance at China-Africa Economic and Trade Expo

    2025-06-18

    Sharing Development Opportunities, Zoomlion Pump Makes Appearance at China-Africa Economic and Trade Expo

    The year 2025 marks the 25th anniversary of the Forum on China-Africa Cooperation (FOCAC) and is also the inaugural year for implementing the outcomes of the 2024 FOCAC Beijing Summit. This year commemorates the 25th anniversary of FOCAC, under whose guidance China-Africa relations have achieved leapfrog development. China has established strategic partnerships with all 53 African countries with diplomatic ties, trade volume between China and Africa has increased nearly 30 times, and Chinese investment in Africa has grown nearly 100 times, bringing tangible benefits to the peoples of China and Africa.

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    Causes, Hazards, and Solutions for Electrification of the Pump Casing in High-Head, High-Flow Multistage Pumps

    Causes, Hazards, and Solutions for Electrification of the Pump Casing in High-Head, High-Flow Multistage Pumps

    High-head, high-flow multistage pumps are core equipment for industrial water supply, agricultural irrigation, and other applications. Electrical conductivity of the pump casing is a typical safety hazard that not only endangers the personal safety of operators but also can lead to equipment shutdowns and component damage. In this article, Changsha Zhonglian Pump Industry, a manufacturer of multistage pumps, provides a systematic overview of the causes, hazards, and solutions for electrical conductivity in the casings of high-head, high-flow multistage pumps, offering professional guidance to help users quickly identify and resolve issues and ensure standardized operation and maintenance, thereby guaranteeing the safe and stable operation of the equipment.

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    2026-03

    Analysis of the Structural Positioning of the Balance Pipe and Axial Force Balancing Technology in Horizontal Multistage Centrifugal Pumps

    Analysis of the Structural Positioning of the Balance Pipe and Axial Force Balancing Technology in Horizontal Multistage Centrifugal Pumps

    Over many years of development, the axial-force-balancing system in horizontal multistage centrifugal pumps has become a critical factor affecting operational stability. In horizontal multistage centrifugal pumps employing balance discs and bell-type structures, the balance pipe—acting as a key component in single-stage centrifugal pumps—achieves axial-force cancellation through pressure-guided balancing. In the following discussion, a technical engineer from Changsha Zhonglian Pump Industry, a leading centrifugal-pump manufacturer, will provide a technical analysis of the structural positioning of the balance pipe in horizontal multistage centrifugal pumps and the associated axial-force-balancing technology.

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    22

    2026-03

    Structural Design, Operating Principle, and Engineering Applications of the GS-Type Energy-Saving Split-Casing Pump by Zoomlion Pump Industry in Changsha

    Structural Design, Operating Principle, and Engineering Applications of the GS-Type Energy-Saving Split-Casing Pump by Zoomlion Pump Industry in Changsha

    Changsha Zhonglian Pump Industry, a leading manufacturer of split-case pumps, will systematically dissect the structure, operating principles, and engineering applications of our GS-series energy-efficient split-case pumps from two core technical perspectives—structural characteristics and operating principles—and draw on real-world project case studies. This comprehensive analysis will provide you with a thorough understanding of the pump’s technical advantages and intrinsic value, serving as a professional reference for equipment selection and application within the industry.

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    21

    2026-03

    Technical Specifications and Application Guide for Rust Prevention in Multistage Centrifugal Pumps

    Technical Specifications and Application Guide for Rust Prevention in Multistage Centrifugal Pumps

    Multistage centrifugal pumps manufactured by Changsha Zoomlion Pump Industry are widely used in industrial applications. However, their complex design and demanding operating environments often lead to corrosion, which can adversely affect pump performance and service life. To address the need for corrosion protection in multistage pumps, and drawing on years of technical expertise accumulated by Changsha Zoomlion Pump Industry, a set of technical specifications and application guidelines for corrosion prevention in multistage centrifugal pumps has been developed for reference by user organizations.

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    20

    2026-03

    Solution for Addressing Negative Pressure Issues in High-Flow, High-Head Multistage Centrifugal Pumps

    Solution for Addressing Negative Pressure Issues in High-Flow, High-Head Multistage Centrifugal Pumps

    During operation, large-flow, high-head multistage centrifugal pumps are susceptible to cavitation, which not only significantly degrades pump performance stability—resulting in flow fluctuations and head reduction—but also accelerates wear of the mechanical seal and triggers cavitation damage, ultimately shortening the equipment’s service life. Drawing on its technical expertise, Changsha Zoomlion Pump Industry has developed the following solutions to address the issue of negative pressure in large-flow, high-head multistage centrifugal pumps:

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    19

    2026-03

    Operating Guide for Priming and Air Bleeding of Light-Duty Stainless Steel Multistage Centrifugal Pumps

    Operating Guide for Priming and Air Bleeding of Light-Duty Stainless Steel Multistage Centrifugal Pumps

    Operating Procedures for Water-Filling and Air-Exhaustion of Multistage Centrifugal Pumps at Changsha Zoomlion Pump Industry I. Applicable Scenarios: When a multistage centrifugal pump is commissioned for the first time, restarted after a prolonged shutdown, or when excessive air has accumulated inside the pump (resulting in inability to draw water), it is essential to ensure that the pump casing is completely filled with liquid and that all air is thoroughly purged. This prevents equipment damage caused by cavitation and dry running, thereby ensuring the efficient and stable operation of the multistage centrifugal pump unit.

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    18

    2026-03

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