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WQ / QW Submersible Sewage Pumps

The WQ submersible sewage pump adopts an IP68 waterproof, all-in-one compact structure for fully submerged operation without a pump house. Featuring anti-clog impeller and dual mechanical seal, it efficiently drains fibrous and particle-laden sewage. Built-in multi-protection ensures safe, long service life with high energy efficiency, easy installation and low maintenance, ideal for municipal, industrial, construction and agricultural drainage.

Commodity name： WQ / QW Submersible Sewage Pumps

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PRODUCTS

Centrifugal Water Pump

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Description
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WQ Submersible Sewage Pump Product Details

1. Product Overview
The WQ series submersible sewage pump is a high-efficiency clog-free submersible drainage equipment manufactured in strict accordance with the national industry standard GB/T24674. Integrating a pump body, sealing system and submersible motor into one compact unit, it requires no pump house and can operate fully submerged in water. It is mainly designed for conveying media containing solid particles, fibrous impurities, sludge, domestic sewage and rainwater, effectively solving the common drawbacks of traditional sewage pumps such as easy clogging, motor burnout, complicated installation and high maintenance costs. Featuring a comprehensive power range, the WQ series adapts to full-scenario drainage applications including civil sewage discharge, industrial wastewater delivery and large-scale municipal drainage, serving as a core general equipment for water supply, drainage and sewage treatment projects.
2. Core Structural Design
The WQ submersible sewage pump adopts a precision upper and lower split structure, with a waterproof motor on the upper part and a hydraulic pump body on the lower part. The reasonable structural layout ensures stable operation and upgraded core components for greatly enhanced durability:
High-efficiency Clog-free Impeller: Equipped with a large-channel rotary flow / double-blade impeller that abandons the traditional narrow-flow design. It boasts excellent dirt passing capacity, allowing smooth passage of fibrous impurities 5 times the pump caliber and solid particles up to 50% of the pump caliber, fundamentally avoiding winding and clogging. Optional cutting impellers are available for selected models to crush soft debris such as cloth strips, plastic bags and weeds, adapting to complex sewage working conditions.
Multi-layer Sealing Protection System: The connection between the pump body and motor adopts a dual-end hard alloy mechanical seal plus skeleton oil seal for double dynamic sealing, matched with a fixed stop and oil-resistant rubber O-ring for static sealing. Made of corrosion-resistant tungsten titanate material, the sealing components feature high wear resistance, corrosion resistance and aging resistance, supporting continuous stable operation for more than 8,000 hours and completely preventing sewage leakage and motor water ingress failures.
Waterproof and High-temperature Resistant Motor: Fitted with a dedicated submersible asynchronous motor adopting high-grade insulating materials and a water jacket circulating cooling system. The large heat dissipation area ensures efficient heat dissipation, enabling long-term full-load operation. Built-in anti-condensation devices realize automatic dehumidification to stably maintain motor insulation performance and prevent electric leakage and motor burnout under high-temperature and humid environments.
Intelligent Protection Module: All models are equipped with multiple automatic protection functions including overload, over-current, phase loss, overheating and water leakage protection. The pump will automatically stop in case of blockage, dry running, abnormal voltage and other faults, fully protecting core components and greatly reducing equipment failure rates.
3. Core Product Advantages
Excellent Anti-clogging Performance: The optimized large-channel hydraulic structure and impeller design create a dead-angle-free flow channel that avoids winding and sediment accumulation, delivering far higher drainage efficiency than traditional sewage pumps for impurity-laden complex sewage.
Energy-saving, Efficient and Stable: The precisely optimized hydraulic model reduces fluid resistance and improves conveying efficiency. It features low energy consumption, stable operation and low noise, achieving remarkable long-term energy-saving effects.
Easy Installation and Maintenance: The integrated compact structure with small size and light weight supports rapid installation with an automatic coupling device. No dedicated pump house pouring is required, greatly reducing infrastructure costs. The simple structural design facilitates disassembly, inspection and daily maintenance with low operation difficulty.
High Durability and Strong Adaptability: The pump body is made of cast iron or stainless steel with outstanding corrosion resistance, wear resistance and impact resistance, adapting to harsh water quality with acid-base properties and high impurities. It supports both dry and wet operation modes and automatic shutdown at ultra-low water levels for thorough drainage.
Wide Working Condition Adaptability: Covering a full range of power, flow and head parameters, customized models including standard, high-flow, high-head and cutting-type pumps are available to meet diverse drainage demands of different scenarios.
4. Application Scenarios
With strong universality, the WQ submersible sewage pump is widely used in civil, industrial and municipal drainage fields:
Municipal Engineering: Urban sewage pipe network drainage, rainwater pumping station flood drainage, municipal sewage treatment plant water conveying
Industrial Fields: Factory production wastewater, printing and dyeing sewage, mild acid-base chemical sewage, foundation pit drainage for construction sites
Construction & Civil Use: Basement drainage of residential communities, building sewage discharge, underground garage water removal for shopping malls
Agriculture, Forestry & Water Conservancy: River dredging and drainage, fish pond water replacement, rural domestic sewage treatment, farmland flood drainage
Operating Parameters
1. Flow Rate: 15–3,500 m³/h
2. Head: 7–60 m
3. Power: 1.5–270 kW
3. Discharge Diameter: 50–600 mm

Model
50QW, 80QW, 100QW, 150QW, 200QW, 250QW, 300QW
350QW, 400QW, 450QW, 500QW, 550QW, 600QW

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Company Information

Shijiazhuang Zhengrong Pump Co., ltd., affiliated with Shijiazhuang Industrial Pump Co., ltd.Group, is a large-scale slurry pump manufacturing enterprise. ZR provides slurry pump and special alloy parts that feature a high performance and a wearing and corrosion resistance. First established in 1998, we now own three production bases with a dredge pump, desulphurization pump and slurry pump production base located in Shijiazhuang Development Zone, covering 46000 square meters.
ZR can complete the research and development of new products, due to our self-owned pump test station, which carries out tests with extreme accuracy to ensure all pumps meet international standards, and allow us to offer only the best products and materials to meet different operating conditions. We have a large mold database that includes a full range of advanced aluminum molds used to produce various industrial pump castings. Our company has an extensive inventory of standard pieces, allowing us to keep a delivery period to within 10 days of the order being placed. If standard products don’t meet your needs, supply us with special design drawings, and we will carry out custom OEM orders for even the most advanced EPC casing line. We work with numerous well-known domestic names, including the Waterway Bureau, mining companies, desulphurization companies and more, as well as partnerships with international corporation customers.
Our product line includes pumps and accessories, and OEM services, and has been sold around the world to customers from North and South America, Africa, Russia, Europe and Southeast Asia. Come check us out today, and let ZR show you what we have to offer for all of your slurry pump needs.

Our Services

1. Processing with supplied drawing

2. Processing with supplied samples

3. Produce all kinds of anti abrasive spare parts except for pump

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