Tsurumi BZ Series Submersible Wasterwater Pump with Shrouded Single/Two Channel Impeller

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.

The BZ-series offers a wide lineup of discharge bores ranging from 80 - 350 mm and motor outputs of 1.5 - 75 kW. Moreover, the pumps can be used with Tsurumi’s guide rail fitting device that facilitates installation and maintenance. The BZ-series pumps come packed with a number of original technologies developed and honed over years of service including an anti-wicking cable, motor protector, dual inside mechanical seals with silicon carbide faces and Oil Lifter.

Highly reliable and durable, Tsurumi BZ-series pumps are designed and built for sound
quality and continuous duty that can help you keep your systems -- whether for wastewater drainage, pumping or flood control -- running stably and greatly reduce your maintenance costs. As an option, the pumps can be adapted for seawater, high temperature liquids or other special application, paving the way for their use at shipyards and power plants for water intake and discharge

FEATURES

• Solids Handling Capability: Handles solids up to 3" (76 mm) in diameter, ideal for wastewater, sewage, and industrial slurry applications.
• Wide-Range Performance: Available in a range of motor outputs (4 kW – 15 kW) with high-head or high-volume configurations to match the demands of your site.
• Robust Construction: Cast iron construction, abrasion-resistant components, and hardened impellers ensure long-term durability under punishing conditions.
• Advanced Impeller Design: Equipped with a 2 or 3-blade semi-open channel impeller to maximize efficiency and reduce clogging risk.
• Double Mechanical Seal in Oil Bath: Provides exceptional protection from water intrusion and allows for continuous operation in the harshest environments.
• Tsurumi’s Patented Oil Lifter: Ensures optimal lubrication of the seal faces—even when oil levels are low—extending the lifespan of the pump.

APPLICATIONS

• Sewage Treatment Plants
• Industrial Wastewater Management
• Flood Control & Drainage
• Tunneling and Mining Operations
• Agricultural Water Management
• Construction Site Dewatering

MODELS