Submersible pump Tsurumi PSF Series
The Tsurumi PSF Series submersible wastewater pump, available in a power range of 0.25 – 3.7 kW at 380V, is designed for high-head wastewater pumping applications. Its closed impeller, robust construction from high-grade plastic and 304 stainless steel, and use of liquid paraffin lubrication make it ideal for pumping wastewater with low solid content, as well as for decorative water features, fish ponds, and aquaculture applications.

Tsurumi PSF series submersible wastewater pumps are an excellent option for wastewater and liquids containing minimal solids. With a submersible design, these pumps operate efficiently even in deep-water conditions. The use of high-quality plastic and 304 stainless steel offers outstanding corrosion resistance, ensuring long-lasting and safe operation in wet environments. Additionally, the incorporation of liquid paraffin lubrication not only provides excellent lubrication but also expands the pump’s range of applications—including decorative water features, fish ponds, and aquaculture. The pump is also equipped with a trash guard to prevent clogging, maintaining optimal performance.

Technical Specifications of Tsurumi PSF Series Submersible Wastewater Pumps
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Discharge Nozzle Diameter: 40 mm, 50 mm, 65 mm
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Water Temperature Range: 0 – 40°C
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Liquid Types: Raw wastewater, wastewater containing solids
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Impeller: Closed impeller made of fiberglass
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Motor Shaft: Constructed from 304 stainless steel
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Pump Casing: Made of plastic
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Mechanical Seals: Dual SiC seals with an Oil Lifter cooling system
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Motor: 2-pole, operating at 2850 RPM
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Insulation Class: E (up to 180°C)
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Power Range: 0.25 – 3.7 kW; Voltage: 380V

List of Tsurumi PSF Series Pump Models
Discharge Bore (mm) |
Model | Motor Output (kW) |
Phase | Starting Method |
Solids Passage (mm) |
40 | 40PSF2.25S | 0.25 | 1-phase | Capacitor Run | 8 |
40 | 40PSF2.25 | 0.25 | 3-phase | D.O.L. | 8 |
40 | 40PSF2.4S | 0.4 | 1-phase | Capacitor Run | 8 |
40 | 40PSF2.4 | 0.4 | 3-phase | D.O.L. | 8 |
50 | 50PSF2.75 | 0.75 | 3-phase | D.O.L. | 8 |
50 | 50PSF21.5 | 1.5 | 3-phase | D.O.L. | 13 |
65 | 65PSF22.2 | 2.2 | 3-phase | D.O.L. | 13 |
65 | 65PSF23.7 | 3.7 | 3-phase | D.O.L. | 13 |
Key Technological Features of Tsurumi PSF Series Submersible Wastewater Pumps
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High-Quality Materials: The pump casing is made from high-grade plastics such as polypropylene or polyethylene, which offer excellent corrosion resistance, chemical resistance, and high durability. This ensures that the Tsurumi PSF pump operates safely and reliably even in harsh conditions.
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High Performance: The pump design is optimized to ensure efficient operation, with an integrated motor that delivers sufficient power for the pumping process. Tsurumi engineers have developed advanced technology to produce pumps that treat wastewater effectively, reliably, and with energy savings.
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Anti-Clogging Mechanism: Built-in anti-clogging features prevent large solids from blocking the pipeline and affecting pump performance. This allows continuous operation without the worry of clogging, enhancing reliability and overall performance.
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Compact Size: The PSF series, with its compact and lightweight plastic casing, is easy to transport and install even in confined spaces such as flooded areas or tight enclosures.
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Extended Lifespan and Low Maintenance: Made from high-quality materials, these pumps resist corrosion and operate efficiently under the most challenging conditions. Critical components are carefully manufactured to ensure durability and reliability, minimizing maintenance concerns and prolonging service life.
Why Are Tsurumi PSF Series Pumps So Popular?
Tsurumi PSF series pumps are highly regarded for their modern design, high-quality materials, and long-lasting performance. Key advantages include:
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A powerful motor suitable for various applications—from domestic drainage to industrial wastewater pumping.
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The ability to withstand harsh environments such as turbid water, muddy or sandy liquids, and waste-laden water.
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Specially designed impellers that prevent clogging, coupled with corrosion-resistant casings to ensure high durability.
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Reduced maintenance and repair costs, leading to long-term operational savings.
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Quiet operation with low noise and minimal vibrations, making them ideal for installation in residential areas.
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Easy installation, operation, and maintenance due to a simple, lightweight design.
With excellent performance, durability, and flexible operation, Tsurumi PSF series pumps have become a top choice for a wide range of applications—from residential and construction to heavy industrial use.
Construction of Tsurumi PSF Series Submersible Wastewater Pumps
The Tsurumi PSF series pump is engineered with advanced technology to deliver superior performance, durability, and continuous operation in harsh wastewater environments. Its construction includes critical components that optimize the pumping process and extend the equipment’s lifespan:

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Anti-Wicking Cable Entry: The pump features an anti-wicking cable system that prevents water from entering the motor through damaged cable ends. This minimizes moisture intrusion and reduces the risk of condensation inside the pump, enhancing safety and longevity.
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Dual Mechanical Seals with SiC: Equipped with dual mechanical seals embedded with silicon carbide (SiC) and an oil chamber, the design completely eliminates the risk of corrosion, wear, or clogging, thereby preventing potential seal failures.
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Oil Lifter System: The exclusive Oil Lifter system provides continuous lubrication for the mechanical seals, even when oil levels drop below the recommended threshold. This ensures effective lubrication, cooling, and stable sealing, extending maintenance intervals.
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Closed Impeller Design: The PSF series employs a closed impeller made of robust, high-strength plastic. This design maximizes pumping efficiency, minimizes clogging, and ensures stable flow rates.
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Air Release Valve: An integrated air release valve prevents air lock within the pump chamber, ensuring continuous, uninterrupted water flow.
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Rubber Shock Absorbing Feet: Models with a power rating of 1.5 kW and above are equipped with rubber feet to absorb vibrations, reduce noise, and protect the mounting surface.
Applications of Tsurumi PSF Series Submersible Wastewater Pumps
Tsurumi PSF series pumps are designed to meet diverse and practical applications. They are built to be durable, efficient, and safe for various wastewater management needs, including:
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Construction: Used for pumping wastewater, rainwater, and liquids containing sand, gravel, and other impurities during construction projects.
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Agriculture: Preferred by farmers for irrigation purposes and for pumping wastewater containing manure and organic waste.
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Industrial: Employed to treat wastewater from production processes, offering outstanding durability and continuous operation under demanding conditions.
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Domestic: Ideal for residential applications such as draining household wastewater, preventing flooding, and maintaining healthy living environments.
With its high load-bearing capacity and superior anti-clogging features, the Tsurumi PSF series pump provides a reliable and energy-efficient solution for a variety of water management challenges.
Tsurumi Pump Distributor in Vietnam
KaT Solution is an authorized distributor of Tsurumi pumps, offering a full range of genuine products from Tsurumi with complete warranty coverage.
Services Provided by KaT Solution:
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Expert Consultation: With over 25 years of experience, KaT Solution offers free technical consultations to recommend the best solutions for your specific needs.
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Comprehensive Support: Beyond being a distributor, KaT Solution provides technical guidance and support from the initial stages of selection through the entire service life of the product.

KaT Solution is dedicated to delivering reliable, high-quality products, backed by thorough after-sales service to ensure optimal performance and customer satisfaction.