Submersible pump Tsurumi SF Series

The Tsurumi SF Series submersible wastewater pump, with a power range of 0.75 – 11 kW and operating at 380V, is a high-head submersible pump designed to handle wastewater containing solids. Featuring a multi-vaned open impeller driven by a powerful 2-pole motor, it is engineered for operation in deep excavations or high-humidity environments.

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Tsurumi SF Series submersible wastewater pumps are a trusted and effective solution for wastewater treatment applications, including those involving liquids with large-sized solids. The semi-open, multi-vaned impeller design ensures smooth and efficient operation, even when pumping waste containing large particulates. The 2-pole motor in the Tsurumi SF Series guarantees stable, durable performance, delivering high efficiency and energy savings.

Submersible pump Tsurumi SF Series
Submersible pump Tsurumi SF Series

Technical Specifications of Tsurumi SF Series Submersible Wastewater Pumps

  • Discharge Nozzle Diameter: 50 mm, 80 mm

  • Water Temperature: 0 – 40°C

  • Liquid Types: Raw water, wastewater, stormwater

  • Impeller: Open horizontal impeller

  • Motor Shaft: Made of 420 stainless steel

  • Pump Casing: Constructed from gray cast iron

  • Mechanical Seals: Dual SiC seals with an Oil Lifter cooling system

  • Motor: 2-pole, 2850 RPM

  • Insulation Class: F (up to 155°C)

  • Power: 0.75 – 11 kW, Voltage: 380V

Performance Curves

List of Tsurumi SF Series Pump Models

Discharge
Bore
(mm)
Model Motor
Output
(kW)
Phase Starting
Method
Solids
Passage
(mm)
50 50SF2.75 0.75 3-phase D.O.L. 11 / 10
50 50SF21.5 1.5 3-phase D.O.L. 11 / 10
50 50SF22.2 2.2 3-phase D.O.L. 7.5
50 50SF23.7 3.7 3-phase D.O.L. 7.5
80 80SF25.5 5.5 3-phase D.O.L. 15 / 19
80 80SF27.5 7.5 3-phase D.O.L. 19 / 21
80 80SF211 11 3-phase Star-Delta 22

Construction of Tsurumi SF Series Submersible Wastewater Pumps

The Tsurumi SF series submersible pump is a compact, cast-iron pump featuring a semi-open impeller. It is designed for high-head pumping and effective defoaming in wastewater treatment plants. Thanks to its semi-open impeller, the Tsurumi SF series can efficiently transport suspended solids and waste without clogging. Its excellent defoaming capability ensures a smooth and efficient treatment process. With robust cast-iron construction, the Tsurumi SF series is capable of continuous operation in the harsh environments of wastewater treatment plants while maintaining high reliability and a long service life.

Construction of Tsurumi SF Series
Construction of Tsurumi SF Series

The detailed components of the Tsurumi SF series submersible wastewater pump include:

Cable Head Each cable is equipped with a waterproof block at the connection point with the pump. This mechanism is designed so that a portion of each conductor is sealed with rubber or molded epoxy that flows between the individual wires, effectively preventing water or other liquids from penetrating along the conductors. This design minimizes leaks and ensures safety.

Motor Protection Unit These pumps are equipped with three Miniature Temperature Protection Units (MTPs) installed on each coil of the 3-phase motor. The MTPs are connected in series, with wiring routed out of the motor. If the temperature of any coil rises to a dangerous level, the bimetal strip inside the MTP trips, causing the control panel to immediately cut off the power supply. This multi-level protection ensures the motor is safely guarded against overheating and potential explosion hazards.

Motor The motor is a dry-type squirrel-cage induction motor housed in a waterproof enclosure and compatible with E-class insulation, offering numerous benefits. This feature allows the motor to withstand ambient temperatures of up to 40°C while operating efficiently and safely.

Mechanical Seals The mechanical seals consist of two sealing faces embedded with silicon carbide (SiC) and are equipped with an oil chamber, completely eliminating the risk of corrosion, wear, or clogging, thereby preventing potential seal failures.

Closed Pressure Relief System Tsurumi pumps with a capacity of 5.5 kW or higher are equipped with a closed pressure relief system. This system comprises a separate pump housing constructed independently of the oil casing, where the mechanical bearing is installed. An intermediate chamber, open to the outside, is installed between the pump housing and the oil casing. This configuration ensures that the mechanical bearing is only exposed to static pressure (submerged) without being subjected to high pump pressure, thereby preventing premature bearing wear.

Oil Lifter The Oil Lifter is designed as an efficient lubrication device for the mechanical seals. Thanks to advanced technology, it uses only one-third the amount of lubricant and cooling oil compared to conventional systems.

Replaceable Wear Components The Tsurumi SF series is engineered so that wear-prone components such as the impeller and suction cover can be easily replaced with new parts. This design not only reduces costs but also minimizes downtime, ensuring continuous and efficient operation.

Guided Rail Installation System The guided rail installation system allows for easy connection and disconnection of the pump to the piping network by simply lifting and lowering the pump. This simplifies routine maintenance and inspections, eliminating the need to enter the containment tank. Tsurumi SF pumps, with power ranging from 1.5 kW to 11 kW and pre-coded with TOS accessories preceding the model code, are available with guided rail installation accessories.

Primary Applications of Tsurumi SF Series Submersible Wastewater Pumps

Tsurumi SF Series submersible wastewater pumps are the ideal choice for a variety of applications, from residential to industrial. With their robust design and high performance, Tsurumi SF pumps effectively meet the following needs:

  • Residential: Tsurumi SF pumps help remove domestic wastewater and stormwater, preventing flooding and ensuring a healthy living environment. They operate quietly and are energy-efficient.

  • Industrial: These pumps are suitable for draining wastewater from factories, treating sewage, and pumping liquids mixed with waste or impurities. They can operate continuously in harsh environments while maintaining high performance.

  • Construction: In construction sites, Tsurumi SF pumps are used to remove groundwater and rainwater, keeping sites dry and safe. They are capable of withstanding high pressure and operate reliably.

With a sturdy design, energy-saving performance, and the ability to handle various types of liquids, Tsurumi SF series pumps are the optimal solution for applications ranging from residential to heavy industrial use.

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:

  • Expert Consultation: With over 25 years of experience, KaT Solution offers free technical consultations to recommend the best solutions for your specific needs.

  • 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.

WASTEWATER-TREATMENT-EQUIPMENT

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

Frequently asked questions

About KaT Solution
KaT Solution specializes in providing technical solutions and distributing equipment, materials, and chemicals used in clean water treatment, wastewater treatment, air pollution control, and production processes. With a team of sales engineers boasting over 25 years of industry experience, we are ready to offer free consultations to help clients choose optimal solutions and products tailored to their specific needs.
KaT Solution provides the following product lines: Wastewater treatment equipment; Water treatment equipment; Chemicals; Air and dust treatment equipment; Equipment for the tapioca starch industry; Heat-resistant and non-stick materials
KaT Solution delivers products directly to client sites or companies across Vietnam as quickly as possible. We offer attractive discounts for bulk orders and ensure comprehensive warranty policies from the brand. Additionally, our after-sales policy supports customers even after the warranty expires.
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