Tsurumi 80SFQ27.5 High Head Submersible Corrosion-Resistant Pump for Mining Applications with Semi-open Impeller

Industrial dewatering and large-scale corrosive wastewater management are the focus of this submersible corrosion-resistant pump. Constructed from 316 stainless steel casting, it is engineered for handling aggressive liquids and water of a corrosive nature in chemical plants, mines, and aggregate processing sites. Its robust metallurgy allows for continuous operation in harsh environments where wastewater pH values are between 3 and 10.

Powered by a 7.5 kW / 415v motor, the pumping system delivers a maximum head of approximately 35 m and a peak flow capacity of approximately 2000 L/Min. This induction motor is continuous-duty rated and utilizes a Direct on Line starting method, with Star-Delta available as a special option. It provides the hydraulic performance required for high-volume transfer through its 80 mm discharge bore.

The hydraulic configuration features a 316 stainless steel casting semi-open multi-vane impeller that facilitates the passage of solids up to 23 mm. This large solids handling capability ensures site debris is displaced through the pump casing during intensive drainage cycles. The pump incorporates a seal pressure relief port to protect the shaft seal by diverting abrasive particles and reducing the hydraulic load on the mechanical seal faces.

Mechanical integrity is supported by dual inside mechanical seals with silicon carbide faces and an Oil Lifter for lubrication. Protection is enhanced by FKM rubber parts and a circle thermal protector built into the motor housing. The unit utilizes an anti-wicking cable entry to protect the motor from moisture, while the 316 stainless steel casting frame and shaft provide the structural strength required for heavy-duty service.

FEATURES

• Manufactured from SCS14 (316 stainless steel casting) to provide maximum corrosion resistance in aggressive sewage duty.
• Large 23 mm solids passage facilitates the displacement of significant site debris through the semi-open multi-vane impeller.
• Integrated seal pressure relief port diverts pumping pressure away from the mechanical seal to extend shaft seal life.
• Double-face mechanical seal with silicon carbide faces provides superior resistance to abrasion and chemical corrosion.
• Original Oil Lifter maintains consistent lubrication of seal faces even if the lubricant volume falls below rated levels.
• FKM (FPM) rubber parts for O-rings and seals ensure chemical compatibility with acidic wastewater and chemical runoff.
• Watertight cable entry with an anti-wicking block prevents motor moisture incursion from capillary action or damaged cables.
• Circle thermal protector in the motor housing directly interrupts the circuit during thermal overload or electrical stress.