Submersible Sewage Pump

Your Professional Submersible Sewage Pump Supplier

Hangzhou Ruifeng Environmental Protection Technology Co., Ltd. is a diversified high-tech company that integrates research and development, manufacturing, sales, and service. Our main products include sewage pumps, integrated prefabricated pump stations, integrated sewage treatment systems, grease and oil-water separation equipment, and complete sewage lifting solutions.

Why Choose Us

Quality Control

We operate under strict ISO 9001 quality management standards, ensuring every product goes through complete performance testing before delivery, guaranteeing stable and dependable quality.

Production Equipment

We are equipped with a full set of advanced processing and manufacturing equipment, this includes surface grinders, lathes, power milling machines, universal lift table milling machines, universal lift table milling machines and other processing equipment. These equipment enable us to strictly control each production link to ensure the delivery of qualified and high-performance products.

OEM & ODM Services

For OEM and ODM projects, once you share your specific needs, our experienced engineering team will promptly develop tailored solutions for you.

Patents & Certifications

We hold multiple certifications and patents, including environmental management, quality management, occupational health and safety systems, as well as design and utility model patents.

Technical Parameters

Parameter	Description	Typical Value / Range
Pump Type	Type of submersible sewage pump	Centrifugal, Non-Clog, Vortex
Motor Power	Rated power of the electric motor	0.75 – 30 kW
Voltage	Supply voltage	220V / 380V / 415V / 440V
Frequency	Operating frequency	50Hz / 60Hz
Flow Rate (Q)	Maximum discharge capacity	10 – 500 m³/h
Head (H)	Maximum pumping head	5 – 40 m
Impeller Type	Structure of the impeller	Open, Semi-Open, Vortex
Passage Diameter	Maximum solid particle size pump can pass	20 – 100 mm
Pump Material	Material of main pump components	Cast Iron, Stainless Steel 304/316
Seal Type	Mechanical seal type	Single / Double, Oil or Water Lubricated
Protection Class	Electrical protection rating	IP68
Insulation Class	Motor insulation grade	F / H
Liquid Temperature	Maximum allowed liquid temperature	≤40°C (standard)
Cable Length	Standard power cable length	5 – 20 m (customizable)

Our Best-Selling Submersible Sewage Pumps

01/

Stainless Steel Submersible Cutting Pump
The Stainless Steel Submersible Cutting Pump is a highly efficient sewage treatment solution, designed for handling wastewater containing solid particles and fibrous materials.

02/

Plastic Submersible Pumps
These submersible pumps feature a durable industrial plastic casing, providing excellent strength, impact resistance, heat resistance, hardness, and long-term aging resistance, making them ideal for various corrosive or abrasive applications.

03/

Stainless Steel Casing Submersible Pumps
Stainless steel submersible pumps are widely used across different industries and environments. They are compact, efficient, and reliable, offering a long service life with minimal maintenance.

04/

Large Submersible Sewage Pump
Large submersible sewage pumps are essential equipment for lifting water from deep wells. They offer a wide flow rate and head range, suitable for various water transfer and sewage applications.

Submersible Sewage Pump Customization List

Cable Specifications
Cable length, color, plug type, and connector options can be customized. These choices help match local installation standards and ensure safe, stable operation.

Speed Control
The pump can be equipped with adjustable speed settings. This allows users to optimize performance for different flow and head requirements.

Customized Labels
Private labels or customer-specific markings can be added. This supports brand identity and simplifies product tracking in the supply chain.

Special Protection Functions
Additional protection features—Such as overload, dry-run, or over-temperature protection—Can be included. These options help improve safety and extend pump lifespan.

Stainless Steel Casing Submersible Pumps

Material Options for Key Components
The pump housing, rotor, gaskets, and shaft can be produced in various materials to meet different working conditions. Material selection enhances corrosion resistance and mechanical strength.

Optional Accessories
Accessories like filters, valves, and suction cups can be provided. They help improve system efficiency and convenience during installation.

Appearance Customization
The pump’s exterior style, color, and finish can be customized. This supports brand requirements and enhances market presentation.

Submersible Design Options
Different submersible levels or sealing grades can be selected. This ensures stable performance under specific water depths and working conditions.

Advantages of Submersible Sewage Pump

Durable Construction

For the all-stainless-steel casing pumps, the stainless-steel construction offers excellent thermal stability and allows continuous operation in water up to ~ 80 °C.

Robust Cutting Mechanism

The stainless‑steel submersible sewage pump integrates a built-in cutting blade that efficiently crushes large solid particles and fibrous debris, greatly reducing clogging risk.

High Flow & Anti-Clogging Performance

The submersible sewage pump is engineered for very high flow rates and can pass large solid particles (up to ~ 100 mm), thanks to its wear-resistant impeller and optimized inlet design.

Reliable Sealing and Protection

Our submersible sewage pumps use a double sealing technology and IP68 protection for motor and wiring, effectively preventing water ingress and improving operational safety.

Application Scenarios

Municipal Applications
Submersible sewage pumps are widely used in wastewater treatment plants, lift stations, stormwater systems, and flood-control installations. They help manage large volumes of wastewater and ensure stable, continuous flow in municipal networks.

Industrial Applications
These pumps are suitable for process water handling, effluent discharge, chemical transfer, and sump drainage in manufacturing and processing facilities. They deliver reliable pumping performance even when dealing with corrosive or contaminated liquids.

Residential Applications
In homes, submersible sewage pumps are commonly installed in basement sump systems, well-water supply lines, septic tanks, and small irrigation setups. They provide steady pumping where gravity flow is not possible.

Mining Applications
Mining operations use these pumps for dewatering, slurry handling, and process water transfer in both underground and surface environments. They are engineered to manage high-solids content and abrasive media.

Agriculture, Aquaculture & Irrigation
The submersible sewage pumps are ideal for agricultural or fish-farming environments, where chemical resistance, lightweight construction, and simple maintenance are critical.

Comparison Table: Submersible Sewage Pump vs. Clean Water Submersible Pump

Category	Submersible Sewage Pump	Clean Water Submersible Pump
Primary Application	Designed for wastewater containing solids, fibers, and sludge.	Intended for clean or lightly contaminated water without solid particles.
Impeller Design	Uses non-clog impellers such as vortex or channel types to pass solids safely.	Uses closed or semi-open impellers optimized for higher flow and efficiency.
Motor Protection	Typically features stronger sealing and overload protection due to harsh operating conditions.	Standard sealing system suitable for clear water environments.
Material Strength	Often built with corrosion-resistant stainless steel, cast iron, and wear-resistant components.	Uses lighter materials since exposure to abrasive contaminants is minimal.

Ordering Process

Consultation

You can reach us by phone, email, or WhatsApp and share detailed information about the product you need. This includes required pump type, flow and head requirements, installation conditions, and any specific design preferences.

Technical Evaluation

Our engineering team reviews your requirements, checks technical feasibility, and recommends the most suitable solution. We consider structure, performance, safety, and overall cost efficiency.

Prototype Development & Testing

We create a sample based on the approved specifications. Each prototype is tested for flow rate, pressure, sealing, motor performance, and long-term durability before being sent to you for evaluation.

Final Specification Confirmation

After you approve the sample, we confirm all technical details, packaging requirements, order quantity, pricing, and delivery timeline before entering production.

Mass Production

Production is carried out under strict quality control. Every unit undergoes multiple inspections for electrical safety, water-tight sealing, noise level, motor stability, and overall appearance to ensure consistent quality.

Shipping & After-Sales Support

Finished products are shipped with full documentation, including manuals, installation guides, and test reports. We provide ongoing after-sales technical support to ensure reliable performance in your market.

Packaging and Shipping Services

Packing	We use standard export-safe wooden crate packaging, and customized packaging options are available upon request.
Delivery Time	The delivery time is 10–20 working days after payment confirmation, depending on the order quantity.
Payment Terms	We accept T/T, with 30% paid as a deposit and 70% due before shipment.
Shipping Options	We offer air, sea, and express shipping. EXW, FOB, CFR, CIF, and DDU terms are available.
Product Warranty	According to the terms of the contract, the equipment is covered by a two-year warranty from the date of successful installation and commissioning. The electrical components are covered by a warranty period of 18 months.

Our Certificate

We have obtained certifications for environmental management, quality management, and occupational health and safety management, as well as design patents and utility model patents. These approvals demonstrate our commitment to compliance, product innovation, and consistent manufacturing quality.

FAQ

Q: What materials are commonly used in a submersible sewage pump?

A: Most pumps use stainless steel, cast iron, and engineered plastics for the housing, with EPDM/NBR for sealing parts to ensure durability in corrosive wastewater.

Q: Can a submersible sewage pump handle solids?

A: Yes. Depending on the model, it can handle solid particles from 30 mm to 100 mm, making it suitable for sewage with debris.

Q: Do submersible sewage pumps require frequent maintenance?

A: Routine inspection every 6–12 months is usually sufficient. High-quality models need minimal maintenance due to sealed bearings and oil-filled motors.

Q: Can the pump run dry?

A: No. Submersible sewage pumps should not run without water; dry running will cause motor overheating and seal failure.

Q: How do I choose the right size and model?

A: Selection is based on flow rate, head, solids size, power rating, and tank dimensions. A supplier can help calculate these parameters.

Q: Can the pump be used with a sewage lifting station?

A: Yes. Submersible sewage pumps are often installed inside prefabricated lifting units for buildings and underground structures.

We are one of the most experienced submersible sewage pump suppliers in China, featured by quality products and good price. Please rest assured to wholesale high-grade submersible sewage pump made in China here from our factory. Contact us for quotation.

Large Submersible Sewage Pump, Plastic Submersible Pumps, Stainless Steel Submersible Cutting Pump