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

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    Water supply equipment with constant pressure without negative pressure
    Water supply equipment with constant pressure without negative pressure
    Water supply equipment with constant pressure without negative pressure
    Water supply equipment with constant pressure without negative pressure
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    • Water supply equipment with constant pressure without negative pressure
    • Water supply equipment with constant pressure without negative pressure
    • Water supply equipment with constant pressure without negative pressure
    • Water supply equipment with constant pressure without negative pressure

    Category:

    Vertical multistage pump

    Keywords:

    Pump

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    Water supply equipment with constant pressure without negative pressure

    Flow: 2~60m³/h

    Lift height: 12~160m

    Price: 0.98~11.2W

     

    The variable frequency negative pressure-free water supply equipment is a key device manufactured by Changsha Zhonglian Pump Industry water supply equipment manufacturer, used to maintain positive pressure in the water supply system. Its function is to ensure that the water source can stably supply the users' taps by monitoring the water level and pressure in the supply system and accordingly controlling the pumping station and the regulating valve to achieve this goal. When the water level or pressure in the supply system decreases, the equipment automatically activates the pump to maintain water supply with positive pressure.

    +86 0731-88192288

    Customer service hotline

    info@cipump.com

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    Product Description Product Specifications Why Choose Us? FAQ

    Product Description

    The variable pressure water supply equipment without negative pressure is a key device manufactured by Changsha Zhonglian Pump Industry to maintain positive pressure in the water supply system. Its function is to ensure that water can be supplied stably to users' faucets by monitoring the water level and pressure in the system and accordingly controlling the pumping station and regulating valves to achieve this goal. When the water level or pressure in the system decreases, the equipment automatically activates the pump to maintain the supply with positive pressure.

     

     

    Compared to the traditional secondary water supply method, this equipment uses advanced control technology with a microprocessor, variable speed control, and stable flow technology without negative pressure, forming an automatic water supply system with superimposed pressure and stable flow, widely applicable for secondary water supply without contamination in high-rise buildings. This equipment eliminates the problem of "secondary water contamination" that can occur with traditional low and high water tanks, thereby improving the quality and health standards of water supply in high-rise residences.

     

    Main components of the variable pressure water supply equipment without negative pressure

    Includes vertical multistage pump, water tank (tower or tank), monitoring and control system (including sensors and controllers), as well as pipes and valves.

     

    Advantages of the variable pressure water supply equipment without negative pressure product

    Includes automatic adjustment, water tank pressure balance, remote monitoring, and safety. By ensuring a stable water supply, energy saving, convenient maintenance, remote monitoring, and safe control, this equipment is widely used in high-rise buildings. Overall, the water supply equipment without negative pressure is a modern and effective device to maintain water supply with positive pressure, providing users with stable and clean drinking water.

     

    Product parameters

    Scope of application of the variable pressure water supply equipment without negative pressure

    Covers the upgrade, remodeling, and expansion of the secondary water supply system in already constructed and under-construction high-rise buildings, such as high-rise residential complexes, apartments, office buildings, offices, hotels, hospitals, and other tall buildings.

    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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