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

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    Horizontal multistage split-case centrifugal pump (BB3)
    Horizontal multistage split-case centrifugal pump (BB3)
    Horizontal multistage split-case centrifugal pump (BB3)
    Horizontal multistage split-case centrifugal pump (BB3)
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    • Horizontal multistage split-case centrifugal pump (BB3)
    • Horizontal multistage split-case centrifugal pump (BB3)
    • Horizontal multistage split-case centrifugal pump (BB3)
    • Horizontal multistage split-case centrifugal pump (BB3)

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    Oil Pump

    Keywords:

    Pump

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    Horizontal multistage split-case centrifugal pump (BB3)

    Flow: 17-1250m³/h (50Hz)

    Lift height: 21-2083m (50Hz) )

    Temperature:  -80 °C to 200 °C

    Flow (60Hz): 20-1500m³/h

    Lift height (60Hz): 30-3000m

     

    Product description The DKS series of horizontal multistage split-case centrifugal pumps is a type of API BB3 pump, which is a centrifugal pump used in heavy industry applications such as oil and chemical, according to the API 610 standard of the American Petroleum Institute. It is a double-suction centrifugal pump, with axial split and symmetrical arrangement of the multistage impellers. This pump is designed to handle high flow and high pressure conditions, commonly used for

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    Product Description Product Specifications Why Choose Us? FAQ

    Product Description

    • Product Description

    The DKS series of horizontal multistage split casing centrifugal pumps is a type of API BB3 pump used in heavy industrial applications such as oil and chemical. It complies with the API 610 standard of the American Petroleum Institute, being a double-suction centrifugal pump, with axial split and symmetrical configuration of the multistage impellers. This pump is designed to handle high flow and high pressure conditions, commonly used in heavy industrial applications requiring high reliability, such as oil refining, chemical processing, and power generation.

    • Performance Range

    Flow rate: 17-1250m³/h (50Hz) 20-1500m³/h (60Hz)

    Head: 21-2083m (50Hz) 30-3000m (60Hz)

    Temperature: -80 °C to 200 °C

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    • Product Advantages
    1. High efficiency: The double-suction design provides high flow and high pressure output, optimizing pump performance.
    2. Corrosion resistance: Selected materials with high resistance to corrosion and wear to adapt to severe operating environments.
    3. Stability: The pump design reduces vibrations and noise, improving stability and reliability in operation.
    4. Easy maintenance: The structure facilitates maintenance and repair, reducing downtime and maintenance costs.
    5. Wide applicability: Capable of handling various fluids, including corrosive, viscous liquids and those with solid particles.
    6. Pump body structure: Horizontal multistage centrifugal pump, supported at both ends, single-layer volute casing, axial split (also called horizontal split casing), with support near the centerline. The casing consists of two parts, upper and lower, joined by several bolts around the casing to facilitate maintenance.
    7. Impeller configuration: Depending on suction conditions, the first impeller can be single or double suction. The impellers are divided into two groups, separated by a central sleeve or seal.
    8. Force balance design: The radial force balance of the pump uses a double volute design; axial balance is achieved by the first double-suction impeller and the remaining impellers mounted back-to-back (or all single suction mounted back-to-back), without the need for an additional axial balance mechanism. Residual axial forces are supported by the thrust bearing.
    9. Bearing configuration: Depending on the pump size (load), radial bearings can be roller or lubricated; thrust bearings can be angular contact ball bearings mounted back-to-back or tilting thrust bearings. The lubrication method can be self-lubrication with fine oil, oil mist lubrication, or oil pressure lubrication.
    10. Cooling method: Depending on usage conditions and pump size, bearings can be cooled by natural air with cooling fins, fan cooling, water jacket cooling, or coil cooling.

     

    Scope of Application

    Oil industry: For crude oil transportation, oil processing, and liquid transportation in petrochemical processes.

    Chemical industry: For chemical product transportation and fluid handling in chemical reaction processes.

    Power generation: For cooling water transport in power plants, fuel transport, etc.

     

    Structural Features

    Axial split casing, full pressure double volute structure, in-line installation with central balance that equalizes pressure in the two sealing chambers.

    1. Precision casting

    Closed impeller, dynamic balance, circular impeller movement to prevent horizontal displacement.

    2. Wear-resistant ring

    Impeller wear-resistant ring, fixed with axial screws.

    3. Shaft

    Sufficient dimensions to meet strict dynamic and shaft power transmission requirements.

    4. Sealing chamber

    Meets API 682 requirements, can use single or double face mechanical seals.

    5. Sleeve

    Minimizes internal flow between the high-pressure and low-pressure ends.

    6. Bearing chamber

    Pure oil or purified oil lubrication can be provided as required. The bearing cover is equipped with a bearing separator. The drive end uses roller bearings, the non-drive end uses angular contact bearings, standard configuration. Other optional configurations available.

    7. Symmetrical impeller arrangement

    Up to 14 impeller stages.

    8. Special impeller design.

    For low NPSHA applications, double-suction impellers can be customized to meet operating conditions.

    9. Special bearing design

    To meet all customer needs, we offer other bearing designs:

    Heavy axial thrust bearing configuration with forced lubrication to support high axial loads and radial sleeve bearings for higher radial loads. Can be mounted on rails with rotation direction flange.

    1. Structural diagram
    Changsha Zhonglian Pump Industry Co., Ltd.

    Why Choose Us?

    Changsha Zhonglian Pump Industry Co., Ltd. was established in 1989, following the reform of the Changsha Water Pump Factory. It is a national high-tech comprehensive enterprise integrating design, research and development, manufacturing, and service. The company was listed on the Hunan Provincial Stock Exchange on December 31, 2019, with the abbreviated name "Zhonglian Pump Industry" and stock code: 600275HN. It is currently a key enterprise in China's centrifugal pump industry and one of the leading domestic manufacturers of multi-stage pumps, headquartered in Changsha, Hunan, a historical and cultural city in China.

    Changsha Zhonglian Pump Industry Co., Ltd.
    Changsha Zhonglian Pump Industry Co., Ltd.

    FAQ

    Q

    What products do you mainly produce?

    A

    Zoomlion Pump Industry manufactures various large industrial centrifugal pumps. The main products include: self-balancing multistage pumps, multistage centrifugal pumps, single-stage centrifugal pumps, split-case pumps, chemical pumps, submersible pumps, pipeline pumps, long-shaft pumps, condenser pumps, and more.

    Q

    Can you help me choose a model?

    A

    Of course! If the water pump model is not selected accurately, it can cause significant problems. After you take it back, it might be either too small to meet the usage requirements or too large, resulting in higher electricity and fuel costs, increasing the operating expenses.

    Q

    Why is the price quotation so slow?

    A

    Because centrifugal pumps are non-standard custom products with many models and a wide price range. Even for the same model, the price varies greatly depending on the materials and configurations used. Taking the most common pump accessory—the impeller—as an example, the price of a stainless steel impeller is several times that of a cast iron impeller. Therefore, we need to clearly confirm the relevant information to provide you with an accurate price. Normally, if you provide comprehensive information, we can quote within 5 minutes.

    Q

    What information should I provide when I need a quote?

    A

    Usually, if you want to get an accurate quote, it is recommended that you provide us with the following information: pump flow rate, head, on-site operating voltage, frequency, temperature of the conveyed liquid, pH value, solid particle content, on-site installation conditions (horizontal or vertical installation), and other related details. If you are not very familiar with these, it’s okay; our sales manager will assist you in determining them.

    Q

    Do you have centrifugal pumps in stock?

    A

    There are many models and configurations of centrifugal pumps. Except for a small number of commonly used standard models that are in stock, the vast majority of models and configurations are not stocked and are customized products. We need to first select the pump based on your site conditions such as flow rate, head, medium temperature, pH value, and installation conditions. After determining the pump model and configuration, we can then place an order with the workshop for production.

    Q

    What is your usual delivery time?

    A

    Models in stock can be shipped by the next day at the latest. Others are custom-made, and depending on the product size and specific project conditions, the delivery time is generally between 7-90 days. Please consult our sales manager for details: 0731-88632200 。

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