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BZ_IA101-A

Product catalog summary

Overview: The Tsurumi BZ-series comprises robust submersible sewage and wastewater pumps with a shrouded single/two-channel impeller and wide passages over 3 inches (76.2 mm) to reduce clogging. Suitable for mid to large-sized applications, these pumps have motor outputs ranging from 1.5 to 75 kW.

Specifications: The series offers discharge bores from 80 to 350 mm and includes technologies like an anti-wicking cable, motor protector, dual inside mechanical seals with silicon carbide faces, and an Oil Lifter for enhanced reliability and durability. Models such as 250BZ and 350BZ have motor outputs from 22 kW to 75 kW, discharge bore sizes of 350mm, and can pass solids up to 90mm.

Performance: Designed for improved energy efficiency, these pumps handle high-temperature liquids up to 80°C and are available in seawater-resistant versions. Performance curves for 50 Hz and 60 Hz frequencies illustrate capacity and total head relationships, aiding in assessing operational efficiency.

Options and Accessories: Options include special material versions using stainless steel, high-chromium cast iron, and bronze. The guide rail fitting system facilitates easy installation and maintenance. Accessories include guide supports, lifting chains, and float switches for liquid level detection.

Applications: Ideal for wastewater drainage, pumping, flood control, and adaptable for shipyards and power plants for water intake and discharge.

Key Features: Features include a back pull-out design for easy maintenance, a leakage sensor for flooding detection, and a seal pressure relief port to protect the mechanical seal. The shrouded channel impeller design ensures wide passages to prevent clogging by solids and fibrous materials.

Dimensions and Weight: Dimensions are provided for both free-standing and guide rail fitting configurations. For instance, the 350BZ622H model measures 1508 x 800 x 1677 mm for free-standing and 1749 x 658 x 1595 mm for guide rail fitting, with dry weights ranging from 900 kg to 1380 kg.

Materials and Construction: Constructed from materials like gray cast iron, 420 stainless steel, and silicon carbide, the pumps feature durable casing, impeller, and shaft sleeve for longevity and reliability.

Additional Features: Additional features include a built-in leakage sensor, motor protector, and the use of turbine oil (ISO VG32) as a lubricant. The pumps employ a star-delta starting method and are designed for both free-standing and guide rail fitting installations.

General Information: Specifications and designs are subject to change without notice. Contact information for Tsurumi Manufacturing Co., Ltd. is provided, and the document was printed in Japan in 2022.

Catalog excerpts

channel impeller - Over 3 inches passage -

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Submersible Sewage Pumps with Channel Impeller - Over 3 Inches Passage - Tsurumi BZ-series pumps are heavy-duty, submersible sewage and wastewater pumps that are designed with a shrouded single/two-channel impeller and wide passages of over 3 inches (76.2 mm) in diameter to minimize trouble due to clogged solids. In addition, as mid to large sized pumps with 22 - 75 kW of drive power, they raise the already high pump efficiency standard of predecessor sewage and wastewater pumps of the Tsurumi brand with even better energy efficiency. The BZ-series offers a wide lineup of discharge bores ranging...

Open the catalog to page 2

Guide Rail Fitting System The guide rail fitting system connects the pump to and from the piping easily just by lowering and hoisting the pump, allowing easy maintenance and inspection without the need to enter the sump. The TOS/TO is the guide rail fitting system made of cast iron and is compatible with cast iron pumps. Accessories • Duckfoot Bend • Guide Support • Guide Hook • Lifting Chain 5m • JIS 10kg/cm2 Flange (100mm and below only) Model Number Designation Guide rail fitting Name of the series Rated motor output in kW Number of poles of the motor — Sub code for the pumping head H: High...

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1 Anti-wicking Cable Entry Prevents water incursion due to capillary action should the cable sheath be damaged or the end of cable submerged. Also prevents moist air from infiltrating the motor housing and condensation from forming inside the housing due to temperature differences between the housing and outside air. Fitted on the water jacket or the pump casing to prevent the air lock. When air flows through the valve, the ball stays at the bottom, but when the pumped water starts to flow, the ball closes the outlet because of its buoyancy. Circle Thermal Protector (7.5kW and below) Directly...

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The BZ-series is a submersible sewage and wastewater pumps that is designed with a shrouded single/two-channel impeller and wide passages of over 3 inches (76.2 mm) in diameter to minimize trouble due to clogged solids. In addition, as mid to large sized pumps with 22 - 75 kW of drive power, they raise the already high pump efficiency standard of predecessor sewage and wastewater pumps of the Tsurumi brand with even better energy efficiency. Performance Curves < 80 • 100mm (3.7kW and below) > < 100mm (5.5-15kW) > Refer to page 11 for dimension symbol positions. *2 All weights excluding cable...

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Performance Curves Refer to page 11 for dimension symbol positions. *2 All weights excluding cable Weights of guide rail fitting excluding duckfoot bend

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Performance Curves * All weights excluding cable Weights of guide rail fitting excluding duckfoot bend Guide Rail Fitting * All weights excluding cable Weights of guide rail fitting excluding duckfoot bend

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* All weights excluding cable Weights of guide rail fitting excluding duckfoot bend

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& Tsurumi Pumpwww.tsurumi-global.com 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 IA101-A HB-B-K-Z

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BZ_IA101-A

BZ_IA101-A

Catalog excerpts

All TSURUMI MANUFACTURING CO., LTD. catalogs and technical brochures