Submersible Pumps

Your Professional Submersible Pumps Manufacturer!

Hangzhou Ruifeng Environmental Protection Technology Co., Ltd. is a diversified high-tech enterprise integrating research and development, manufacturing, sales and service. The company's main sewage pump, integrated prefabricated pump station, integrated sewage treatment equipment, catering oil and water separation equipment and integrated sewage upgrading equipment.

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.

Product Specification

Model	Power	Water outlet diameter	Voltage	Maximum flow	Maximum lift	KG	Packing size
SPS150	150	80	220	370	3.5	11	202048
SPS200	200	25	220	90	8	13	141429
SPS250	250	40	220/380	100	8	10	201935
SPS400	400	50	220/380	200	9	16	21.51946
SPS700	700	50	220/380	380	11	19	21.51946

Product Advantages

Higher Energy Efficiency

Submersible pumps operate directly in the water, using natural pressure to draw fluid in. This design reduces power consumption and helps lower operating costs.

No Priming Required

Because the pump works fully underwater, it can start instantly without priming. This minimizes setup time and improves overall process efficiency.

Zero Cavitation Risk

The submerged design keeps pressure stable, preventing vapor bubble formation. This ensures smooth, reliable flow and reduces downtime.

Low Noise Operation

Operating underwater naturally dampens motor noise. This makes the pump ideal for residential wells, building sumps, and industrial sites where quiet performance matters.

Stable Performance in Demanding Conditions

The sealed construction protects the motor from external elements, delivering consistent output in dirty water, slurry, or high-solids environments.

Common types

Submersible Water Pumps

Designed for clean-water transfer, these pumps move water without handling solids. They are commonly used in wells to deliver safe, stable water supply.

Submersible Dewatering Pumps

Built for fast water removal, these pumps drain flooded areas or locations without proper runoff. Ideal for construction sites, agriculture, and emergency drainage.

Submersible Sewage Pumps

Engineered to handle solids and waste-laden liquids, these pumps support sewage transfer and wastewater systems. Available in multiple capacities to match different municipal and industrial needs.

Application

01/

Harbor & Port Dredging
Submersible pumps are widely used for removing silt, sand, and slurry to keep waterways clear and maintain safe operating depth.

02/

Mining & Mineral Processing
Engineered for heavy-duty performance, these pumps handle abrasive slurries, dewatering, and tailings management in harsh mining environments.

03/

Marine & Barge Operations
Pumps support cargo-barge unloading and emergency de-flooding onboard vessels, ensuring stable and safe marine operations.

04/

Municipal Sewage & Wastewater
Reliable for handling solids-laden wastewater, sludge, and sewage, making them essential for municipal plants and industrial treatment systems.

05/

Building Sump & Drainage Systems
Ideal for basement drainage, stormwater control, and sump pits, providing dependable water removal for commercial and residential buildings.

06/

Tailings Ponds & Industrial Sumps
Designed for continuous duty in high-solids environments, these pumps manage slurry transfer and fluid control in industrial sites.

07/

Water Wells & Boreholes
High-efficiency submersible pumps secure stable water supply for agriculture, utilities, and commercial facilities by operating directly in deep wells.

08/

General Wastewater Processing
Used across a wide range of processing facilities, these pumps deliver consistent performance for fluid transfer, filtration, and system circulation.

Customized Submersible Pump Solutions

Application-Based Configuration
We assess each working scenario—Drainage, sewage, well water extraction, or slurry—So the pump is purpose-built for the exact operating conditions.

Medium Compatibility Selection
The pump is configured according to the fluid type (clean water, wastewater, sludge, or solids), ensuring stable performance and extended service life.

Flow & Head Optimization
We calculate the required flow rate and total head to match your system's actual demand, delivering accurate performance and higher efficiency.

Material Options
Pump bodies can be customized in stainless steel, cast iron, or engineering plastics based on corrosion level, abrasion load, and environmental requirements.

Power & Drive Configuration
Available in electric, diesel, or solar-powered versions to match on-site power conditions. All units are compatible with required voltage, phase, and frequency standards.

Size & Weight Adaptation
Pump dimensions and weight can be adjusted to fit existing sumps, pits, or well spaces, ensuring easy handling and smooth installation.

Our Certificate

FAQ

Q: What is the typical lifespan of a submersible well pump?

A: A well-maintained submersible pump usually lasts 10–25 years, depending on water quality, duty cycle, and installation conditions.

Q: What maximum temperature can a submersible pump handle?

A: Most models operate safely between 40°C and 120°C, depending on materials, motor design, and application rating.

Q: Can submersible pumps be used in sewage systems?

A: Yes. Submersible sewage pumps are specifically engineered to handle wastewater, solids, and sludge in municipal and industrial systems.

Q: How much horsepower is needed for a submersible pump?

A: Small installations typically need 0.5–1 HP, while commercial or industrial applications may require 1 HP up to several hundred HP.

Q: How does a submersible pump work?

A: It uses a sealed motor and centrifugal impeller to convert rotational energy into pressure, allowing water or wastewater to be pumped from depth to the surface.

Q: What are the main advantages of using a submersible pump?

A: Key benefits include high efficiency, quiet operation, space-saving installation, and reliable pumping from deep or flooded environments.

Q: What is the primary purpose of a submersible pump?

A: Submersible pumps are designed for drainage, groundwater control, dirty-water transfer, and wastewater discharge across residential, commercial, and industrial sites.

Q: Do you support OEM and ODM service?

A: Yes. Our engineering team offers full OEM/ODM customization, from pump selection and structural design to performance configuration.

Q: Can you customize branding and product appearance?

A: We provide logo printing, nameplate customization, housing color options, and packaging design to match your brand’s market strategy.

Q: Do you offer sample production for testing?

A: Yes. We offer rapid sample proofing, prototype manufacturing, and performance testing for customer evaluation before mass production.

Q: What materials are available for the pump body?

A: We use high-strength cast iron, stainless steel, and engineering plastics. All materials undergo chemical analysis, mechanical testing, and corrosion testing.

Q: How do you control machining quality?

A: All components are processed on CNC machines, ensuring precise tolerances. Critical parts like impellers and bearings use high-accuracy equipment to reduce noise and vibration.

Q: How is motor performance tested before shipment?

A: Every motor passes no-load testing, stall testing, insulation tests, and temperature-rise tests to ensure reliable and safe operation.

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