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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    What is the parameter for the shaft length of a stainless steel vertical multistage pump?

    What is the parameter for the shaft length of a stainless steel vertical multistage pump?

    In the construction of stainless steel vertical multistage pumps, the shaft length is a key parameter that has a crucial impact on the pump's performance and operational stability. As the core component connecting the motor and the impeller, the shaft length must be accurately determined based on various factors such as the pump's design flow rate, head, number of stages, and installation space.

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    2025-06

    Lubrication device of vertical long-shaft multistage pump

    Lubrication device of vertical long-shaft multistage pump

    Vertical long-shaft multistage pumps are widely used in industrial water supply and drainage, hydraulic engineering, and other fields. Their efficient operation depends on key lubrication devices. The lubrication device acts like the "guardian" of the pump body, directly affecting the pump's service life and stability. Let's take a closer look at it.

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    2025-06

    Does a vertical long-shaft pump have axial displacement?

    Does a vertical long-shaft pump have axial displacement?

    Axial displacement occurs during the normal operation of vertical long-shaft pumps, which is determined by their structural characteristics and working principles. The following explains the causes of axial displacement, influencing factors, and control methods:

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    2025-06

    Why does 130° high-temperature soft water need to be delivered by a sub-high-pressure boiler feed pump?

    Why does 130° high-temperature soft water need to be delivered by a sub-high-pressure boiler feed pump?

    We all know that pump selection needs to be based on operating parameters such as flow rate, head, medium, and temperature. The medium temperature is also an important factor affecting pump selection. When the medium temperature reaches 130°, we need to understand the following points: first, the physical property changes of high-temperature water—at 130°C, the saturated vapor pressure reaches 2.7 MPa, requiring pressurization to maintain the liquid state; second, engineering safety requirements to prevent cavitation damage to the pump body; and finally, system compatibility, as the boiler operating pressure determines that the feed water pressure must be higher. It is especially important to note that users may confuse the concepts of "operating pressure" and "head"; the relationship between NPSHa and NPSHr should be used to explain cavitation prevention design.

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    2025-06

    What kind of medium do chemical process pumps mainly transport?

    What kind of medium do chemical process pumps mainly transport?

    Chemical process pumps are a specific type of pump uniquely named within the category of chemical pumps. What materials are these chemical process pumps mainly used to transport? From a professional perspective, the material selection for chemical process pumps is far more complex than for ordinary pumps. Many users focus only on the medium during selection, overlooking the equally critical factors of temperature and pressure. As the "heart" of the chemical production line, the material choice for chemical process pumps directly depends on the chemical properties of the transported medium, temperature, pressure, particulate content, and cleanliness requirements. The core principles are corrosion resistance, wear resistance, safety assurance, and long service life.

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    2025-06

    Is there any difference between chemical industrial centrifugal pumps and ordinary multistage pumps when choosing the sealing method?

    Is there any difference between chemical industrial centrifugal pumps and ordinary multistage pumps when choosing the sealing method?

    Our manufacturer's after-sales service personnel have received many cases where customers ignored the importance of the medium during selection, resulting in numerous problems with centrifugal pumps during use. There are also many after-sales cases caused by incorrect sealing method choices for chemical pumps. So, how should the sealing method for chemical centrifugal pumps be selected?

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    2025-06

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