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

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    Self-priming stainless steel pump type JMZ
    Self-priming stainless steel pump type JMZ
    Self-priming stainless steel pump type JMZ
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    • Self-priming stainless steel pump type JMZ
    • Self-priming stainless steel pump type JMZ
    • Self-priming stainless steel pump type JMZ

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    Self-priming pump

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    Pump

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    Self-priming stainless steel pump type JMZ

    Flow: 3-100m³/h

    Lifting height: 22-40m

    Power: 1.1-15kw

    Suction height: 5-6m

    Rotation speed: 2900r/min

    Price: 31500-152000

     

    The JMZ type stainless steel self-priming pump is a stainless steel self-priming pump recently developed by our company, also known as a wine pump. This self-priming pump uses our new set of mechanical seals, safe and explosion-proof, which guarantees no leaks for years. It is suitable for pumping and transporting various corrosive liquids such as alcohol, chemical agents, gasoline, beverages, dairy products, solvents, syrups, etc., within a temperature range of -35 to +120 °C.

    +86 0731-88192288

    Customer service hotline

    info@cipump.com

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    Product Description Product Specifications Why Choose Us? FAQ

    Product Description

    　　The JMZ type stainless steel centrifugal self-priming pump is a pump developed by the company using a new set of mechanical seals, also known as a wine pump. This stainless steel self-priming pump is safe and explosion-proof, ensuring no leaks for years, suitable for pumping and transporting various corrosive liquids such as alcohols, chemical agents, gasoline, beverages, dairy products, solvents, syrups, etc., within a temperature range of -35 to +120 °C.

    JMZ Type Stainless Steel Self-Priming Pump

    　　The JMZ type stainless steel self-priming pump series has a compact structure in each component, as well as features such as small size and light weight. The control panel is easy to use and, after thousands of hours of testing, the self-priming pump is guaranteed to operate stably. This model of stainless steel self-priming pump does not require a foot valve or initial priming with water. To transport viscous and corrosive liquids such as concentrated pulps, acids, alkalis, and salts, only 3 to 4 simple parts need to be replaced, which is quick and convenient.

    Product parameters

    Performance range and model description of the JMZ type stainless steel self-priming centrifugal pump
    　　Flow rate from 3 m3/h to 100 m3/h

    　　Lift height from 22 m to 40 m

    　　Diameter from 25 mm to 150 mm

    　　Speed n: 2900 r/min

    　　Medium temperature: -68℃ to 120℃

    　　Example of stainless steel self-priming pump model description: 50JMZ - 30T

    　　50 — Inlet diameter (mm)

    　　J — J is wine pump, F is acid-resistant pump

    　　M — M represents high-quality stainless steel manufacturing

    　　Z — Z is self-priming, T indicates mobile, G is fixed

    　　30 — Lift height (m)

    　　T — T: indicates special outlet or flow requirements

    Meaning of the JMZ type stainless steel self-priming pump model

    Description of the structure of the JMZ type stainless steel self-priming centrifugal pump

    　　1. The main parts of the JMZ stainless steel self-priming pump are: pump body, impeller, pump shaft, mechanical seal, support, etc.

    　　2. The pump rotation direction, viewed from the inlet, is counterclockwise.

    　　3. Pump installation methods: fixed and mobile. The fixed pump generally uses flanges at the inlet and outlet; the mobile pump generally uses coupling connections. (Note: fixed pump flanges generally support a pressure of 6 kg)

    Description of the structure of the JMZ type stainless steel self-priming pump

    Installation and disassembly of the JMZ type stainless steel self-priming centrifugal pump

    　　1. The JMZ self-priming pump can use the "external pump installation dimension table" to make the base and determine the position of the anchor bolts. However, it is better to carry out construction according to the base dimensions after the pump arrives on site.

    　　2. When mounting the pump on the base, wedges can be used to adjust the assembly level, and a level should be used to check the motor shaft level; the concentricity between the pump shaft and motor shaft should also be checked and adjusted. Using a precision ruler and gauges, the difference in the outer diameter of the coupling at the top, bottom, left, and right positions should not exceed 0.15 mm. The deviation between the end faces of the two couplings should not exceed 0.2 mm.

    　　3. The pump must not bear the weight of the pipes; the pipes should be supported by support devices.

    　　4. After installation, manually rotate the coupling to check that it turns smoothly and without jamming.

    　　Disassembly:
    　　1. Loosen the four screws connecting the bearing housing to the pump body, and loosen the mechanical seal and pump cover.

    　　2. Unscrew the impeller nut (turn right), remove the impeller, key, and pump cover, then remove the mechanical seal from the pump cover.

    　　3. Use a puller to remove the coupling, then remove the key, bearing cover, and then disassemble the shaft and bearing.

    　　4. Pump assembly is done in the reverse order of the disassembly mentioned.

    　　5. When reassembling the inlet coupling of the self-priming pump, pay attention that the check valve must be oriented forward to ensure the self-priming effect (see lower right image).

    　　 Mechanical seal installation:
    　　1. When replacing the mechanical seal, ensure the specifications and model match the originals.

    　　2. During mechanical seal installation, maintain cleanliness and do not strike seal parts to avoid damage.

    　　3. When installing the large seal valve and the static and dynamic rings, apply a layer of clean oil and clear oil on the surface.

    　　4. Place the static ring and large rubber gasket on the pump cover, then assemble everything on the shaft (note: the dynamic ring pin must align with the impeller transmission hole).

    　　5. Push the spring seat and spring as a unit. Using the spring seat surface as the force point, push it onto the shaft. The pushing force should allow the spring to compress between 2-4 mm and then slide onto the shaft. If the spring does not compress and can slide, it indicates the fit between the dynamic ring and shaft is too loose, with little friction. If the spring compresses more than 6 mm and the dynamic ring and seal still cannot slide onto the shaft, it indicates the fit is too tight. It should be checked that the mechanical seal matches the original.

     

    Kind tip: For more performance parameters of the JMZ type self-priming pump, click → [Pump selection] Page inquiry

    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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