SUBMERSIBLE SEAWATER-RESISTANT SEWAGE PUMPS_IA119-B

Product catalog summary

Overview: The document provides detailed information on Tsurumi's submersible seawater-resistant sewage pumps, specifically the B-series and C-series. These pumps are designed for handling raw sewage, wastewater, and industrial applications requiring submersion and reliability.

Specifications: The B-series features a channel impeller, while the C-series includes a cutter impeller with a cutting mechanism. Both series offer motor outputs ranging from 0.75 to 15 kW. The pumps are constructed with Duplex stainless steel shafts, FC250 cast iron frames, and a 3-layered epoxy resin paint coating. An optional galvanic anode is available for enhanced corrosion resistance.

Materials and Corrosion Resistance: The pumps utilize Duplex stainless steel (SUS329J4L) for superior strength and corrosion resistance. The document explains the mechanism of bimetallic corrosion in seawater and the protective role of galvanic anodes. The impeller materials include 316 stainless steel or FC250 cast iron, acting as a sacrificial anode to protect the shaft.

Applications: These pumps are suitable for sewage drainage mixed with seawater, wastewater transfer from treatment facilities, water intake/discharge at coastal pumping stations, and desalination plants. They are designed for continuous duty under harsh conditions, reducing maintenance costs.

Additional Features: The pumps include an anti-wicking cable, motor protector, dual inside mechanical seals with silicon carbide faces, and an Oil Lifter. The TM-series, made of titanium and resin, is also mentioned for its high corrosion resistance.

Performance and Model Selection: The document provides performance curves and model selection tables for both the B-series and C-series, detailing discharge bore sizes, motor outputs, dimensions, and weights.

Catalog excerpts

SUBMERSIBLE SEAWATER-RESISTANT SEWAGE PUMPS

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Selection Table Submersible Seawater-ResistantSewage Pumps Handling seawater with submersible pumps for a long term period is not an easy task. When pumps are not equipped with adequate specifications for use in seawater, corrosion in metal sections may cause the pumps to become worse in terms of performance, or in the worst case scenario, suffer a breakdown. Supported by demonstrative experiments using seawater over a long time, Tsurumi has continued unremitting research into submersible seawater-resistant pumps, combining both corrosion resistance and durability. As a result, by giving the...

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SUBMERSIBLE SEAWATER-RESISTANT SEWAGE PUMPS_IA119-B-3

Mechanism of Metal Corrosion If seawater-resistant measures are not taken in seawater applications, metal parts corrode, which causes performance drop that can result in pump failure. One suspected cause of corrosion in metallic parts by seawater is the “metal corrosion potential.” In seawater, a metal’s resistance to corrosion can be seen clearly. As shown in the illustration of <Bimetallic Corrosion in Seawater>, when metals of different potential contact one another, only the metal of lower potential will corrode while the metal of higher potential is protected from corrosion. The table of...

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SUBMERSIBLE SEAWATER-RESISTANT SEWAGE PUMPS_IA119-B-4

Performance Curves For 60 Hz models, please contact your dealer. Model Selection B-series Channel Impeller Total Head (m) Total Head (m) *1 Star-Delta available upon request • Duckfoot bend sets for guide rail fitting system in FC250 + epoxy resin paint are available • Weights excluding cable Cutter Impeller ^ Dimensions Seawater Pumps TM-series Tsurumi also offers submersible seawater pumps, the TM-series. All the wetted parts of this pump are made of titanium and resin, which provides the highest corrosion resistance to seawater. The TM-series is available in 0.25 to 3.7kW motor output, and...

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We reserve the right to change the specifications and designs without prior notice. The OO series and model OO are indicated with our series/model codes in this catalog. Your Dealer TSURUMI MANUFACTURING CO., LTD.© 2022 TSURUMI MANUFACTURING CO., LTD. Printed in Japan IA119-B ITP-X-D-Z

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