The high-pressure centrifugal submersible pump is a drainage equipment that integrates multiple centrifugal impellers with a submersible motor coaxially. Compared with traditional surface pumps, it operates directly underwater, without the need for water filling and water intake, and there is no suction head limit. It is particularly suitable for lifting water from deep wells, mines, and collection pits to higher elevations. The multiple impellers increase pressure step by step, enabling a single pump to achieve a height of several tens or even hundreds of meters. The motor uses water-resistant windings or oil chamber sealing protection and can operate continuously underwater for thousands of hours. This pump has a compact structure and is easy to install, and is a key equipment in modern drainage systems.
Products features
Multi-stage impeller: Usually ranging from 3 to 15 stages. Each stage of the impeller generates a certain head, and the more stages there are, the higher the total head. The impeller material can be HT200 cast iron, tin bronze, or stainless steel (SS304/SS316).
Guide casing: Each stage of the impeller corresponds to a guide casing, converting kinetic energy into pressure energy and guiding the water smoothly into the next stage.
Submersible motor: Oil-filled or dry type. Power ranges from 7.5kW to 315kW. Voltage options include 380V/660V/1140V/6kV/10kV. Insulation class F/H.
Sealing system: Double mechanical seal + oil chamber protection to prevent water from entering the motor chamber.
Products Advantages
High Pressure: Delivers robust performance for demanding industrial applications.
Wide Working Adaptation: Suitable for diverse slurry scenarios, ensuring efficient discharge.
Efficient and Energy-Saving: Optimized design reduces operational costs while maintaining high output.
Submersible Slurry Pump: Designed for direct installation in sludge environments.
Industrial Use Pump: Ideal for wastewater discharge solutions in factories and industries.
Low Maintenance Cost: Abrasion-resistant core enhances durability and reduces upkeep.
Application scenario
High-pressure centrifugal submersible pumps play an irreplaceable role in the following fields:
Mine drainage: emergency drainage during mine water gushing, pumping out accumulated water in mining areas, and precipitation in open-pit mines
Municipal flood prevention: rapid drainage of rainwater in underground garages, tunnels, subway stations, and sunken plazas
Construction: deep foundation pit drainage, drainage during basement excavation, bridge pier foundation construction
Water conservancy and water resources: water intake from reservoirs, river irrigation, pump station renovation, and drought resistance in farmlands
Emergency fire response: replenishing fire water tanks in high-rise buildings, remote water supply systems
Industrial circulation: water collection pits of cooling towers, lift wells of sewage treatment plants, and drainage from shipyards
OEM/ODM
Selection Key Points: Clearly define the required flow rate (m³/h) and total head (m), taking into account pipeline losses and terrain height differences; determine whether the medium contains sand or corrosive substances; provide the power voltage and frequency.
Material Selection: For clear water conditions, cast iron + stainless steel shaft is sufficient; when the sand content is high, it is recommended to use high-chromium alloy or cast steel for the impeller; for corrosive liquids, all stainless steel or duplex stainless steel should be used.
Control Method: Standardly equipped with direct start or star-delta start; optional features include frequency control cabinet, automatic liquid level control, and remote monitoring module.
Customization Scope: Extended cable, special flanges, explosion-proof motor (ExdⅡBT4), high-temperature type, seawater type, double suction structure, etc.
Supplier Introduction
CZME is a world-leading professional manufacturer of high-performance pump equipment. Its products are widely applicable to various industries such as mining, construction, environmental protection, and water treatment. The company's main products include slurry pumps, dredging pumps, desulfurization pumps, offshore dredging pumps, and various industrial pump equipment, which are specifically designed for transporting slurries containing solid particles, with high abrasion resistance and strong corrosiveness. With profound technical accumulation in the fields of slurry transportation and wastewater treatment, CZME has gained the trust of customers all over the world and has become a reliable supplier for long-term and stable cooperation.
FAQ
Q1: What are the differences between a high-pressure centrifugal submersible pump and a regular submersible pump?
A: The main difference lies in the head. Ordinary submersible pumps usually have a head of less than 30 meters, while high-pressure centrifugal submersible pumps can increase the head to over 100 meters through multiple stages of impellers. Additionally, the motor of the high-pressure model has a greater power and higher sealing requirements. The material and bearings have also been strengthened.
Q2: Can this pump operate continuously for a long time?
A: Yes. Under the rated conditions, our high-pressure centrifugal submersible pump is designed as S1 continuous operation mode and can operate without interruption for 24 hours. However, it is necessary to ensure that the water level is not lower than the suction section of the pump body and that the cooling conditions are good. It is recommended to conduct a routine inspection every 2000 hours.
Q3: How can we prevent the motor from getting water and burning out?
A: The pump body is equipped with two mechanical seals and an intermediate oil chamber. The oil chamber contains a leakage sensor. Once the first seal fails, the sensor will send an alarm signal. At the same time, there is a water leakage probe in the motor cavity, which can stop the machine in time for protection. Regularly checking the oil quality and insulation resistance of the oil chamber is crucial for prevention.
Q4: Can it be used to transport muddy water?
A: Yes, but the mud content should be controlled within a volume ratio of 10% and the particle diameter should not exceed 5mm. If the mud is heavy, it is recommended to use a wear-resistant impeller (high-chromium alloy) and increase the gap, while appropriately increasing the motor power margin.
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