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 of Misalignment (Excessive Deviation in Coaxiality) of Couplings in Horizontal Multistage Pumps and On-site Remedial Measures

    Causes of Misalignment (Excessive Deviation in Coaxiality) of Couplings in Horizontal Multistage Pumps and On-site Remedial Measures

    During the long-term operation of horizontal multistage pumps, improper coupling alignment and excessive coaxial deviation are frequent causes of excessive vibration, bearing overheating, seal leakage, and abnormal wear of coupling rubber blocks or tooth surfaces. These issues directly affect the safe and stable operation of the pump unit. Such problems are not caused by a single factor alone; rather, they span the entire lifecycle—from manufacturing and installation to operating conditions and maintenance. In this article, technical personnel from Changsha Zhonglian Pump Industry, a manufacturer of multistage pumps, draw on their practical experience in on-site installation and repair to share insights into the root causes of misalignment (excessive coaxial deviation) in horizontal multistage pump couplings, as well as on-site troubleshooting methods. They also provide actionable preventive and corrective measures for users' reference.

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    04

    2026-03

    Is your horizontal high-pressure multistage centrifugal pump consuming excessive power? Try these repair methods—they’ll likely help reduce power consumption.

    Is your horizontal high-pressure multistage centrifugal pump consuming excessive power? Try these repair methods—they’ll likely help reduce power consumption.

    Is your horizontal high-pressure multistage centrifugal pump consuming excessive electricity? Try these maintenance methods—most of the time, they can significantly reduce energy consumption. In this article, technical engineers from Changsha Zhonglian Pump Industry, a centrifugal pump manufacturer, will outline a practical and quantifiable energy-saving and consumption-reducing solution from seven key perspectives: matching operating conditions, controlling medium characteristics, implementing full-lifecycle equipment maintenance, upgrading motor energy efficiency, optimizing system resistance, establishing closed-loop energy management, and rigorously selecting equipment at the source. This comprehensive approach will help enterprises achieve efficient, low-consumption operation of their pump units while simultaneously pursuing both cost reduction, efficiency improvement, and green development goals.

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    03

    2026-03

    Do horizontal high-pressure multistage centrifugal pumps consume a lot of electricity? These few reasons are quite common.

    Do horizontal high-pressure multistage centrifugal pumps consume a lot of electricity? These few reasons are quite common.

    The energy consumption of horizontal high-pressure multistage centrifugal pumps is directly linked to production and operational costs. This phenomenon is not accidental but rather the result of a combination of factors, including operating condition matching, medium characteristics, and equipment maintenance practices. In this article, Mr. Feng, a senior after-sales engineer from Changsha Zhonglian Pump Industry—a manufacturer of centrifugal pumps—draws on years of repair experience to identify several common causes of high power consumption in horizontal high-pressure multistage centrifugal pumps, providing valuable insights for user organizations.

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    27

    2026-02

    How is Changsha Zhonglian Pump Industry Co., Ltd. really?

    How is Changsha Zhonglian Pump Industry Co., Ltd. really?

    When many industrial project purchasers and operators of mines and power plants approach pump manufacturers, they repeatedly ask: Just how good is Changsha Zhonglian Pump Industry, really? Is it worth partnering with them long-term? Today, we’re not engaging in vague brand promotion—instead, we’ll get right to the heart of the matter by thoroughly examining this company’s true situation from three core dimensions that buyers care about most: qualifications, products, and services.

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    26

    2026-02

    Which manufacturer is best for mine-use self-balancing multistage centrifugal pumps? Attached are the contact phone numbers of multistage centrifugal pump manufacturers.

    Which manufacturer is best for mine-use self-balancing multistage centrifugal pumps? Attached are the contact phone numbers of multistage centrifugal pump manufacturers.

    Mine drainage, mine water supply, and other similar operating conditions place extremely high demands on the stability, wear resistance, and safety of pump units. To ensure reliability, it’s crucial to choose a reputable manufacturer of self-balancing multistage centrifugal pumps for mining applications. Our 800 model specifications of mining drainage pumps have both Coal Safety and Mine Safety certifications, positioning us as a leader in the industry. Additionally, these pumps can be equipped with intelligent control systems for drainage. For procurement and technical consultation, please feel free to contact us directly at 15616442288 (WeChat number also available). We’ll provide you with selection recommendations, parameter configurations, and quotation proposals.

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    25

    2026-02

    Is the issue of water leakage from the bearing housing of the center-open, double-suction centrifugal pump serious?

    Is the issue of water leakage from the bearing housing of the center-open, double-suction centrifugal pump serious?

    Leakage from the bearing chamber of a center-open, double-suction centrifugal pump is by no means a “minor leak.” If left unattended, it can quickly lead to emulsification and failure of the bearing grease, as well as accelerated wear of the shaft sleeve. In the long term, this could result in rusting and seizing of the shaft assembly, water ingress into the motor causing short circuits, and ultimately, unplanned equipment shutdowns—and even trigger safety accidents, inflicting direct economic losses on production and operations. Many users have seen their maintenance costs increase three to five times simply because they failed to pay sufficient attention to initial leaks. In this article, the Technical Department of Changsha Zhonglian Pump Industry, a centrifugal pump manufacturer, will draw upon extensive engineering and operational experience to first clearly identify the core hazards associated with leakage, then systematically analyze five common causes and provide standardized solutions, thereby helping user organizations address this issue comprehensively.

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    24

    2026-02

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