ZW Series Self-Priming Sewage Pump | Non-Clog Wastewater Pump Manufacturer China
Product Description
The Self-Priming Sewage Pump (ZWL Series) is an integrated self-priming and non-clogging centrifugal pump designed for efficient handling of wastewater, sewage, and industrial effluent. This pump combines axial reflux and external recirculation technology, offering reliable self-priming performance and strong solids-handling capability.
It features a high self-priming height (4.5–5.5 m), large flow range (5–800 m³/h), and head up to 80 m, making it ideal for sewage discharge and wastewater treatment systems.
Built for easy installation and maintenance, the pump does not require bottom valves or foot valves in the suction pipeline, significantly simplifying the layout and reducing operational costs.
🌍 Applications
The self-priming sewage pump is widely used in municipal, industrial, and environmental engineering projects that require reliable sewage discharge and wastewater transfer.
Typical applications include:
- Municipal wastewater and drainage systems
- Industrial sewage and slurry transfer
- Food and chemical industries — handling viscous or contaminated liquids
- Papermaking and textile industries — pumping mixed suspended materials
- Agriculture and aquaculture — pond drainage, irrigation, and fishery water circulation
- Power plants and refineries — cooling water and sludge handling
- Construction sites — stormwater and sediment discharge
Designed for pumping liquids containing solids, fibers, or small particles — especially suitable for dirty water, slurry, or industrial wastewater.
⚙️ Technical Data
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Model | ZWL Series Self-Priming Sewage Pump | Flow Range | 5 – 800 m³/h |
| Head Range | 10 – 80 m | Power | 2.2 – 55 kW |
| Speed | 1450 / 2900 r/min | Self-Priming Height | 4.5 – 5.5 m |
| Inlet/Outlet Diameter | Φ25 – Φ300 mm | Temperature Range | ≤ 80 °C |
| pH Range | 6–9 (Cast Iron) / 2–13 (Stainless Steel) | Material | Cast Iron / Stainless Steel |
| Trademark | SUHUA | Origin | China |
| Package | Export-standard wooden case for international shipping |
💡 Features & Benefits
- Strong Self-Priming Capability – Quickly starts without foot valve — capable of lifting liquids up to 5.5 meters in suction height.
- Non-Clogging Design – The axial reflux structure allows smooth passage of solids and fibers, preventing blockages.
- Energy-Efficient & Reliable – Advanced hydraulic design ensures high efficiency, reduced power consumption, and long service life.
- Corrosion & Wear Resistance – Available in cast iron or stainless steel, suitable for a wide pH range and harsh media.
- Easy Installation & Maintenance – No bottom valve required; simple pipeline layout and easy maintenance access.
- Wide Application Range – Capable of pumping clean water, sewage, slurry, and chemical mixtures — suitable for multiple industries.
- Compact Design – Small footprint, easy to install above ground — ideal for stations with limited space.
- Reliable Performance for Continuous Operation – Designed for long-term operation under industrial and municipal conditions.
❓ Frequently Asked Questions
Q1: What type of liquid can the self-priming sewage pump handle?
It can handle sewage, wastewater, slurry, and liquids containing fibers, solids, or suspended particles. Stainless steel versions are suitable for weak acids or alkalis.
Q2: What is the maximum self-priming height?
The pump can self-prime up to 4.5–5.5 meters, depending on installation and liquid characteristics.
Q3: Does the pump require a foot valve or bottom valve?
No, it does not. This is one of the key advantages of self-priming pumps — simpler installation and lower maintenance.
Q4: What materials are available for construction?
Standard materials include cast iron for general sewage and stainless steel for corrosive or chemical liquids.
Q5: What industries typically use this pump?
Commonly used in municipal sewage, chemical plants, paper mills, textile production, aquaculture, and wastewater treatment.
Q6: What is the working temperature range?
The standard temperature limit is ≤80°C. Special materials can be customized for higher temperature liquids.
Q7: How can I select the right model?
Provide flow rate, head, medium type, and installation environment. Our engineering team will recommend a suitable model accordingly.
Q8: Is after-sales support available?
Yes. We provide spare parts, technical assistance, and installation guidance for all exported pumps.