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ZW Self-Priming Clog-Free Sewage Pump

ZW series self-priming sewage pump is a horizontal non-clog drainage pump with strong self-priming performance. No water filling or bottom valve is required for quick startup. Its large-channel impeller effectively handles fibers and solid particles without clogging. Featuring high efficiency, low noise and stable operation, the pump is easy to install and maintain, widely used for municipal, industrial and agricultural wastewater drainage.

Commodity name： ZW Self-Priming Clog-Free Sewage Pump

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PRODUCTS

Centrifugal Water Pump

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Description
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ZW Self-Priming Clog-Free Sewage Pump Product Details

1. Product Overview
The ZW series self-priming clog-free sewage pump is a professional horizontal self-priming drainage device. It overcomes the limitations of traditional water pumps that require water filling and bottom valve installation. No water pre-filling, no bottom valve, and no vacuum pump assistance are needed, enabling automatic water absorption and drainage after startup. Adopting an axial reflux mixed-flow hydraulic structure and advanced clog-free hydraulic design, the pump features strong self-priming performance and excellent sewage discharge capacity with stable operation. It can efficiently convey sewage containing solid particles, fibrous impurities, sludge and suspended solids, effectively solving common problems of ordinary self-priming pumps such as easy clogging, low self-priming height, complicated startup and high failure rate. With a compact integrated structure and no need for a dedicated pump house, it serves as the core equipment for onshore fixed sewage lifting and drainage, widely applicable to various industrial, municipal and civil water supply and drainage projects.
2. Core Structural Design
Clog-Free Large-Channel Impeller: Adopting a specially designed wide-channel impeller that eliminates the narrow flow passage defect of traditional blades with no fluid dead angles. It delivers superior impurity passing capacity, smoothly conveying sand, stones, cloth strips, weeds, plastic debris and other pollutants to completely avoid winding, sedimentation and clogging, perfectly adapting to complex and turbid water conditions.
High-Efficiency Self-Priming Reflux System: Equipped with an optimized axial reflux self-priming structure based on the gas-liquid mixing and separation principle, it rapidly exhausts air and completes water absorption inside the pump with fast priming speed and stable suction head. The pump can retain water after shutdown, eliminating repeated water filling for secondary startup and greatly simplifying operation procedures.
High-Strength Sealing System: Adopting premium mechanical seals matched with corrosion-resistant and oil-resistant rubber sealing parts. Featuring high sealing precision and excellent wear resistance, it effectively resists erosion from sewage media, prevents water leakage and seepage, and ensures long-term continuous stable operation of the equipment.
Integrated Overall Structure: The pump and motor adopt direct coupling transmission with a simplified and compact structure, reducing transmission loss and energy consumption. The integrated base design minimizes vibration and noise during operation and greatly improves equipment stability, allowing flexible installation without site restrictions.
3. Core Product Advantages
Powerful Self-Priming & Easy Startup: No water pre-filling, no bottom valve and no auxiliary equipment required. It realizes permanent self-priming after the first water injection with simple start-stop operation, completely avoiding the tedious priming steps of traditional water pumps.
High-Efficiency Anti-Clog Drainage: The large-channel hydraulic structure adapts to high-impurity sewage without winding or clogging, providing far higher drainage efficiency than ordinary self-priming pumps and coping with various complex sewage discharge working conditions.
Energy-Saving & Stable with Low Failure Rate: The optimized hydraulic fluid model reduces transmission loss and improves operating efficiency with remarkable energy-saving effects. High-quality integral accessories and stable sealing and transmission systems ensure low failure rate during long-term continuous operation.
Simple Installation & Low Maintenance: Adopting horizontal floor-mounted installation with no underwater operation or dedicated pump house required, which greatly reduces infrastructure costs. The simple structure facilitates disassembly and inspection, requiring only routine cleaning and inspection for extremely low daily maintenance costs.
Wide Application Adaptability: Compatible with clean water, domestic sewage, industrial wastewater and mild acid-base water. It features strong working condition compatibility and supports both continuous and intermittent drainage operations.
4. Application Scenarios
Specially designed for onshore sewage drainage instead of underwater operation, the ZW self-priming sewage pump adapts to various fixed drainage scenarios:
Industrial Field: Factory wastewater discharge, printing and dyeing chemical sewage lifting, mine drainage, construction foundation pit sewage cleaning
Municipal Engineering: Urban sewage pipe network conveying, pump station water supply and drainage, river water quality improvement and drainage
Construction & Civil Use: Ground and underground sewage lifting and discharge for residential communities, shopping malls and office buildings
Special Industries: Aquaculture wastewater discharge, papermaking sewage conveying, farmland waterlogging drainage, landscape water replacement
Operating Parameters
1. Flow Rate: 8–800 m³/h
2. Head: 15–80 m
3. Power: 1.5–75kW
3. Discharge Diameter: 25–250 mm

Model
25ZW, 32ZW, 40ZW, 50ZW, 65ZW, 80ZW, 100ZW
125ZW, 150ZW, 200ZW, 250ZW, 300ZW,

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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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