Changsha Zhonglian Pump Industry Co., Ltd.

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Having 26 series -312 varieties - over 1000 pump models

Focused on water pump research and development manufacturing for 36 years

Free training for operation and maintenance personnel/free installation guidance/free provision of installation drawings

Self-balancing multistage pump

Multistage pump

Coal Mine Safety Certified Multi-stage Pump

Vertical multistage pump

Integrated pump station

Vacuum pump

Fire pump

Constant-pressure water supply equipment

Other pumps

Genuine accessories

WQ (QW)-type submersible slurry pump

Traffic: 8–10,000 m³/h

Head: 7-60m

Power: 1.1-280kw

Efficiency: 38%-85%

Rotational speed: 740-2900r/min

Pump weight: 42-2800kg

Price: 0.081–81,500

The WQ (QW)-type submersible slurry pump is suitable for conveying wastewater and debris containing particulates in industries such as chemical, petroleum, pharmaceutical, mining, papermaking, cement plants, steel mills, power plants, coal processing, as well as in urban sewage treatment plant drainage systems, municipal engineering, construction sites, and other related sectors.

Hotline:

+86 0731-88632200

classification：

Mud pump

keyword：

Horizontal Single-Stage Fire Pump

Product consultation

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Product overview Product parameters Why choose us? Frequently Asked Questions

Product Overview

The WQ (QW)-type submersible slurry pump is a new-generation pump product developed on the basis of introducing advanced foreign technologies and taking into account the specific operational characteristics of domestic pumps. It features high efficiency, energy savings, a unique structural design, anti-entanglement capabilities, no clogging, automatic installation, and automatic control. It demonstrates exceptional performance in conveying solid particles and long-fiber waste. This pump is suitable for applications in industries such as chemical processing, petroleum, pharmaceuticals, mining, papermaking, cement plants, steel mills, power plants, coal-processing facilities, as well as in urban sewage treatment plant drainage systems, municipal engineering projects, construction sites, and other sectors where it is used to transport wastewater and sludge containing particulate matter. Additionally, it can also be used for pumping clean water and corrosive media.

WQ (QW)-type submersible slurry pump

The WQ (QW)-type submersible slurry pump features a unique impeller design and a new type of mechanical seal, enabling it to efficiently handle media containing solid particles and long fibers. Compared to conventional impellers, this pump’s impeller adopts either a single-channel or dual-channel configuration, resembling a bent pipe of the same cross-sectional area and exhibiting excellent flow characteristics. Coupled with a properly designed volute chamber, this pump boasts high efficiency. Moreover, the impeller has undergone both static and dynamic balancing tests, ensuring that the pump operates without vibration.

Product Parameters

Operating Conditions and Model Description for WQ (QW)-Type Submersible Slurry Pumps:

1. The medium temperature for the WQ (QW)-type submersible slurry pump shall not exceed 60℃; the specific gravity of the medium is 11.3 kg/dm³.

2. For pumps without an internal self-circulating cooling system, the motor portion must not extend above 1/3 of the liquid level.

3. The application range of cast iron material is PH59.

4. The 1Cr18Ni9Ti stainless steel material is suitable for general corrosive media.

5. The operating environment’s altitude should not exceed 1000 meters.

If users have specific requirements for temperature or medium, please specify the detailed information about the conveyed medium when placing an order, so that our company can provide a more reliable product.

Model Description: 40QW (WQ) 15-30-2.2

40-caliber (mm)

QW (WQ) – Submersible Sewage Pump

15 - Flow rate (m³/h)

30 - Head (m)

2.2 - Motor power rating (kW)

Main features of the WQ (QW)-type submersible slurry pump

1. The WQ (QW)-type submersible slurry pump features a unique single- or double-blade impeller design, which significantly enhances its ability to pass through debris. It can effectively handle fibrous materials up to five times the diameter of the pump’s inlet and solid particles with diameters approximately 50% of the pump’s inlet diameter.

2. The mechanical seal is made of a new type of hard, corrosion-resistant tungsten carbide material, and the sealing design has been upgraded to a double-end-face seal. This allows the pump to operate continuously and safely for over 8,000 hours while remaining immersed in oil.

3. The overall structure is compact, small in size, low-noise, and boasts significant energy-saving performance. It’s easy to maintain and doesn’t require a pump room—simply submerge it in water to start operating, greatly reducing project costs.

4. The pump’s seal oil chamber is equipped with a high-precision, anti-interference leak detection sensor, and thermally sensitive components are pre-embedded in the stator windings, providing absolute protection for the pump motor.

5. A fully automatic safety protection control cabinet can be equipped according to user requirements, providing absolute protection against pump leakage, electrical leakage, overload, and overheating, thereby enhancing the product’s safety and reliability.
6. The float switch can automatically control the pump’s start and stop based on changes in the required liquid level, eliminating the need for dedicated personnel to monitor it and making it extremely convenient to use.

7. A dual-rail automatic coupling installation system can be equipped according to user needs, providing great convenience for installation and maintenance, eliminating the need for personnel to enter the sewage pit for these tasks.

8. It can be used across the entire head range without causing the motor to overload.

9. There are two different installation methods: a fixed automatic coupling installation system and a mobile free-installation system.

Main applications of the WQ (QW)-type submersible slurry pump

● Wastewater discharge from enterprise units

● Urban wastewater treatment plant discharge system

● Subway, basement, and civil defense system drainage stations

● Wastewater discharge from hospitals, hotels, and high-rise buildings

● Sewage pumping station in the residential area

● Discharge of dilute slurry in municipal engineering and construction sites

● Water supply equipment at the water treatment plant

● Wastewater discharge from livestock farms and irrigation of rural farmland

● Supporting equipment for mine exploration and water treatment

● Instead of carrying loads on shoulders, it sucks and transports river silt.

Friendly reminder: For more performance parameters of the WQ (QW)-type submersible slurry pump, please click → [Pump Selection] page to view.

Why choose us?

Changsha Zhonghlian Pump Industry Co., Ltd. was founded in 1989 and was independently established after the restructuring of Changsha Water Pump Factory. It is a comprehensive national high-tech enterprise integrating design, research and development, manufacturing, and service. The company was listed on the Hunan Provincial Equity Exchange on December 31, 2019, with the abbreviation "Zhonghlian Pump Industry" and the equity code: 600275HN. It is currently a key backbone enterprise in China's centrifugal pump industry and one of the major professional manufacturers of multi-stage pumps in the country. The headquarters is located in Changsha City, Hunan Province, a historical and cultural city in China.

41000 m²

Square meters of land area

100 %

100% factory pass rate

41000 m²

Square meters of land area

100 %

100% factory pass rate

What is your typical delivery time?

Models in stock can be shipped the next day at the latest. All others are custom-made, with lead times generally ranging from 7 to 90 days depending on the product size and project specifics. Please contact our sales manager for details: 0731-88632200 。

Do you have centrifugal pumps in stock?

Centrifugal pumps come in numerous models and configurations. Except for a small number of high-volume, standard models that are in stock, the vast majority are not stocked and are customized products. We need to select a pump based on your site's flow rate, head, media temperature, pH value, and installation conditions, etc., to determine the pump model and configuration before we can submit an order to the factory for production.

What information should I provide when requesting a quote?

Generally, to obtain an accurate quotation, we recommend providing us with the following information: pump flow rate, head, on-site operating voltage and frequency, temperature, pH value, and solid particle content of the fluid being conveyed, and on-site installation conditions (horizontal or vertical installation), etc.

If you are not sure, don't worry, our business managers will assist you in determining this.

What products do you mainly produce?

Zhonglian Pump Industry manufactures various large industrial centrifugal pumps. Main products include: self-balancing multi-stage pumps, multi-stage centrifugal pumps, single-stage centrifugal pumps, split-case pumps, chemical pumps, submersible pumps, pipeline pumps, long-shaft pumps, condensate pumps, etc.

Could you help me with the selection?

Certainly! If the water pump model is not selected accurately, there will be big problems. If you choose a smaller one, it won't meet your needs; if you choose a larger one, it will waste electricity and fuel, increasing your costs.

Why is it so slow to get a price quote?

Because centrifugal pumps are non-standard customized products with many models, the price range is also very large. Even for the same model, the price difference is also very large due to different materials and configurations. Taking the most common water 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 clarify the relevant information to give you an accurate price. Normally, if you provide relatively comprehensive information, we can quote within 5 minutes.

I-IB Horizontal Screw Slurry Pump

None

I-IB Horizontal Screw Slurry Pump

None

+86 0731-88632200

Export Trade/Technical Support:

+86 153-4831-2290

Head Office Email:

zoomlian@yeah.net

No. 210, Huanbao Zhong Road, Yuhua District, Changsha City, Hunan Province, Leowoju Wisdom Valley Building B, 8th Floor

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Self-balancing multistage pump

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Coal Mine Safety Certified Multi-stage Pump

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