Tsurumi KTVE35.5 Aluminium Alloy Automatic Submersible Drainage Pump for Large Excavations with Vortex Impeller

High-output automatic drainage is delivered by this submersible pump, which incorporates an electrode type relay unit to manage pump operation based on water levels. The relay automatically starts and stops the pump to prevent dry-running and reduce power consumption while maintaining continuous dewatering during fluctuating water conditions. This mechanism extends the operating life while ensuring consistent site water management without operator intervention.

Flow capacity reaches up to 980 L/Min through an 80 mm discharge, driven by a 5.5 kW / 415v three-phase motor that also achieves a maximum head of 35 m. These hydraulic characteristics provide the performance necessary for automatic drainage water transfer in large-scale construction applications. The motor operates reliably in water containing up to 10% dry matter within a pH range of 5 to 9, ensuring compatibility with typical site drainage conditions.

A ductile cast iron vortex impeller with high-gap geometry handles debris up to 8.5 mm, promoting efficient movement of abrasive solids through the housing. The impeller design resists erosive wear while maintaining pumping performance during automatic drainage cycles in sand-laden water. This combination of automatic control and durable hydraulics ensures sustained operation throughout demanding excavation projects.

An oil chamber with a double-face mechanical seal and silicon carbide faces provides reliable sealing, supported by the Oil Lifter for consistent lubrication even at low oil volumes. The die-casted aluminium alloy body reduces weight for easy deployment, while the top-discharge, side-flow design ensures effective motor cooling. An anti-wicking cable entry block and circle thermal protector provide comprehensive protection against moisture ingress and overheating.

FEATURES

• Automatic relay unit facilitates energy-saving drainage for large-scale construction sites and foundation dewatering.
• High-volume 980 L/Min flow rate enables rapid automatic displacement of sand-carrying water and site runoff.
• Electrode relay control reduces power consumption by automatically preventing dry-running and protecting internal components.
• Ductile cast iron vortex impeller with high-gap geometry facilitates the passage of solids up to 8.5 mm.
• Automatic dry-run prevention extends the operating life by eliminating the stress associated with air-pumping.
• Lightweight die-casted aluminium alloy body construction significantly reduces weight to simplify retrieval and relocation.
• Double-face mechanical seal with silicon carbide faces provides durability against abrasion and chemical corrosion.
• Tsurumi's patented Oil Lifter ensures consistent lubrication of the mechanical seal faces even if the lubricant level is low.