
GSZ-4 Series – Submersible High Head Drainage Pumps
High-volume dewatering for mining, construction, and heavy-duty site applications
The GSZ-4-series is a submersible three-phase cast iron high head and high volume heavy-duty drainage pump driven by a 4-pole motor. The side discharge, spiral design allows smoother passage of the sucked solid matters. The motor is cooled by a water jacket that assures efficient motor cooling even when it operates with its motor exposed to air. The pump incorporates seal pressure relief ports that prevent the pumping pressure from applying to the shaft seal.
Features
- Seal pressure relief port protects the mechanical seal from excessive pump pressure while submerged, helping to improve seal life and long-term reliability
- Side discharge, spiral casing with water jacket improves flow of solids and circulates liquid for motor cooling, enabling extended low-water-level operation
- Air release valve to prevent air lock
- Tsurumi’s exclusive oil lifter device, and dual silicon carbide mechanical seals
- Anti-wicking cable entry system prevents water ingress, protecting internal components
Typical Applications
- Tunnelling and underground works
- Construction projects
- Civil infrastructure projects (road, rail, dam, and bridge)
- Quarry and open-cut mining (pit dewatering and stormwater control)
- Emergency flood and stormwater
- Underground mining operations (shaft and tunnel drainage, sump pumping, and general site dewatering)
Note:
1. Not all the pumps listed in the catalogue are available for Australia. Models for Australia are listed below under ‘Models’
2. Product guides / catalogues may vary for Australia. Contact us for the latest technical data
Why Choose Tsurumi
Tsurumi pumps are known worldwide for their reliability, ease of maintenance and long service life. With more than a century of engineering experience, Tsurumi is trusted by contractors, councils and operators across Australia. Customers also benefit from national spare-parts support and fast delivery.
Proven Tsurumi Reliability
Supported by Tsurumi’s spare parts network and fast delivery, the GSZ-4 series pumps are used on job sites across Australia and around the world.
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