Self-Priming Sewage Pump | Municipal & Industrial Wastewater Pump – Anti-Clog, High Efficiency

Product Description
The Self-Priming Sewage Pump by SUHUA is a vertical, self-priming, outer-recirculation pump designed for sewage, wastewater and mixed liquid transfer. It supports flows from 5 to 800 m³/h, heads of 10 to 80 m, and can self-prime up to 4.5–5.5 m. With materials suited for pH 6–9 (or stainless versions pH 2–13), and operation up to 80 °C, it provides reliable, efficient service for municipal and industrial drainage systems.
🌍 Applications
This self-priming sewage pump is ideal for fluid transfer where submersion or priming is difficult. It finds wide use in:
- Municipal sewage discharge systems and stormwater drainage
- Industrial wastewater and effluent handling
- Agriculture / aquaculture drainage and irrigation return
- Paper, textile, chemical, food factories for mixed suspensions
- Power plants / factories handling plant drainage or cooling water return
In many settings, its self-priming and non-clogging features reduce installation complexity and prevent downtime in sewage or mixed liquid pipelines.
⚙️ Technical Data
Parameter | Value / Range | Parameter | Value / Range |
---|---|---|---|
Flow Rate | 5 – 800 m³/h | Power | 2.2 – 55 kW |
Head | 10 – 80 m | Speed | 1,450 or 2,900 rpm |
Self-Priming Height | 4.5 – 5.5 m | Calibre (Inlet / Outlet) | Φ25 – Φ300 mm |
Max Temperature | ≤ 80 °C | pH Range | 6–9 (standard) / 2–13 (stainless) |
Material Options | Cast iron, stainless steel variants | Installation / Type | Self-priming pump with outer recirculation, non-blocking axial reflux |
💡 Features & Benefits
This pump is engineered to deliver durability, performance, and operational simplicity.
- Self-Priming & Non-Clog Design — integrates axial reflux and outer recirculation to handle solids and prevent clogging
- Wide Range & Flexible Use — works across a broad flow / head span making it useful in various municipal and industrial systems
- Material Flexibility — standard cast iron for common sewage; stainless steel available for corrosive media
- Energy Efficient — optimized hydraulics reduce losses and operating costs
- Easy Operation & Maintenance — modular design allows quick access and servicing
- Robust for Sewage Conditions — capable of handling slurries and mixed solids in drainage systems
- OEM / Factory Direct Supply — advantage in cost, customization, and export support
Many buyers choose this pump because its self-priming and anti-clogging feature minimizes downtime and reduces need for additional foot valves or priming equipment.
❓ Frequently Asked Questions
Q1: What kind of sewage or wastewater can it handle?
This pump is suitable for sewage, industrial effluent, mixed liquids with suspended solids, fibers, or slurries (within reason).
Q2: How does its self-priming capability work?
Thanks to its outer recirculation and design, it can prime itself up to 4.5–5.5 meters, eliminating the need for foot valves or manual priming.
Q3: What materials are available and what pH ranges can it support?
Standard models use cast iron for pH 6–9; stainless-steel versions can be used for aggressive media in pH range 2–13.
Q4: What is the maximum liquid temperature it can manage?
The pump is rated for operation up to 80 °C.
Q5: Can this pump be customized to my project’s flow and head?
Yes — as a manufacturer, SUHUA supports customization of flow, head, material, impeller type, and connection size.