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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    Solutions and preventive measures for water leakage at the joint between the horizontal multistage centrifugal pump cover and pump body

    Solutions and preventive measures for water leakage at the joint between the horizontal multistage centrifugal pump cover and pump body

    Horizontal multistage centrifugal pumps are widely used in modern industrial applications such as water treatment, chemical transportation, and mine drainage. However, after prolonged operation, leakage at the joint between the pump cover and pump body often becomes a common issue. Such leaks not only lead to the loss of conveyed media but also directly reduce the pump's volumetric efficiency—under severe leakage conditions, flow rates can drop by 12% to 18%. Moreover, moisture ingress may corrode motor windings, causing short-circuit failures, or even make surfaces wet and slippery, increasing the risk of personnel slipping. Therefore, it is crucial to address any detected leaks promptly and properly. In this article, technical experts from Changsha Zhonglian Pump Industry, a leading manufacturer of centrifugal pumps, share a detailed guide on effective solutions and preventive measures for addressing leakage issues at the joint between the pump cover and pump body in horizontal multistage centrifugal pumps—offering valuable insights for our valued customers to consider.

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    07

    2025-11

    How do you adjust the water pressure of a multi-stage pump?

    How do you adjust the water pressure of a multi-stage pump?

    Whether it's the circulation system of an industrial production line or large-scale water supply scenarios, unstable multi-stage pump water pressure can be incredibly frustrating—too low, and equipment struggles to operate effectively; too high, and you end up wasting electricity while risking damage to components. In fact, adjusting the water pressure of a multi-stage pump is actually quite simple: just identify the right method, follow the steps carefully, and you’ll not only solve the issue yourself but also ensure the pump continues to run efficiently. In this article, technical staff from Changsha Zhonglian Pump Industry, a manufacturer of multi-stage pumps, will walk you through how to fine-tune your multi-stage pump’s water pressure.

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    06

    2025-11

    Common Causes and Preventive Measures for Corrosion in Multi-stage Pump Impellers

    Common Causes and Preventive Measures for Corrosion in Multi-stage Pump Impellers

    As a core piece of equipment in the industrial fluid transportation sector, multistage pumps are widely used in industries such as petrochemicals, metallurgy, and municipal water supply. The impeller, serving as the pump's central component responsible for performing mechanical work, directly impacts the efficiency and service life of the pump unit. In severe cases, impeller corrosion can lead to pump vibration, sudden drops in flow rate, or even complete shutdown failures. In this article, Zhonglian Pump Industry, a manufacturer of multistage pumps, will outline the common causes of impeller corrosion and share effective preventive measures, helping companies reduce operational and maintenance costs.

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    04

    2025-11

    The Role of Couplings in Centrifugal Pump Systems

    The Role of Couplings in Centrifugal Pump Systems

    When servicing centrifugal pumps, many maintenance technicians always make it a point to check the tightness of the coupling bolts—this component, which looks like a "connecting disc," actually serves as the "critical link" between the centrifugal pump and its motor. Neglecting its role can easily lead to unusual pump noises, shaft sleeve wear, and even shorten the overall lifespan of the equipment. While many users know they should regularly replace seals, few fully understand the specific function of the coupling. In fact, its purpose goes far beyond simply "connecting" the shafts. In this article, Changsha Zhonglian Pump Industry, the manufacturer of centrifugal pumps, will provide a detailed explanation of the role that coupling components play in centrifugal pump systems, helping you gain a deeper understanding of this vital accessory.

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    01

    2025-11

    How can we prevent the mining multi-stage centrifugal pump from running dry?

    How can we prevent the mining multi-stage centrifugal pump from running dry?

    In mine shafts, it's common to encounter this situation: Just after a multi-stage centrifugal pump designed for draining underground water is started, an unusual noise from the motor is immediately heard. When you touch the pump casing, it feels scorching hot—only to discover upon disassembly that the impeller has already worn out due to dry running. Not only does this necessitate replacing parts, but it also delays the overall progress of water drainage in the mine. In fact, dry running doesn’t happen "suddenly"; with proper preventive measures taken in advance, such failures can easily be avoided. In this article, technical staff from Changsha Zhonglian Pump Industry, a manufacturer of mining-grade multi-stage pumps, will briefly discuss practical methods to prevent dry-running phenomena in these pumps, offering valuable insights for users to consider.

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    31

    2025-10

    How are pump flow rate and head determined?

    How are pump flow rate and head determined?

    Whether it's the cascading water effect needed for a rafting attraction or the scenic waterfall features in a tourist area, choosing the right pump hinges on selecting the correct flow rate and head. Today, Changsha Zhonglian Pump Industry, a leading pump manufacturer, will clearly guide you on how to precisely determine the flow rate and head requirements for your waterfall pump—making it easy for even beginners to make an informed purchase.

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    30

    2025-10

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