TSURUMI Portable Sewage Pump (Automatic Operation) HSZ3.75SL-110V

Product Overview

The Tsurumi HS3.75SL and HSZ3.75SL models are new additions to Tsurumi's best-selling HS series, designed as portable submersible drainage pumps for single-phase applications, boasting exceptional high-volume drainage capabilities. These models combine low-head, high-flow performance, specifically meeting the demands of the rental market, as well as civil engineering and construction sectors for efficient water removal.

Consistent with existing HS series products, these submersible pumps are easy to operate, compact in design, lightweight, and durable, offering high portability and significantly improved maintenance convenience. Wear parts are constructed from abrasion-resistant materials, ensuring exceptional longevity. Furthermore, the drive shaft, combined with Tsurumi's original agitator, effectively prevents the occasional air-lock phenomenon common in vortex and semi-vortex pumps, and can effectively agitate sludge.

The HSZ series features an automatic operation type pump equipped with a simple float switch, which effectively prevents dry running, thereby significantly reducing power consumption and providing users with a more energy-efficient and convenient drainage solution.

Product Features

Anti-Submersion Processing for Cable Core Wires

Effectively prevents water intrusion due to capillary action, even if the cable sheath is damaged or the end is submerged. It also prevents humid air from entering the motor casing, avoiding internal condensation caused by temperature differences.

Double Mechanical Seal with Silicon Carbide Surfaces

Eliminates spring failure issues, ensuring a longer service life. Isolated within the oil chamber, it maintains a clean, non-corrosive, and non-abrasive lubrication environment. Compared to tungsten carbide, silicon carbide offers 5 times greater resistance to corrosion, abrasion, and heat.

Oil Lubrication Scraper (Tsurumi Original Design)

Effectively provides lubrication and cooling for the sealing surfaces even when the oil level drops to 1/3 of the normal level, maintaining stable shaft seal performance and extending seal life.

V-ring (0.75kW Only)

Acts as a "dust seal," effectively protecting the mechanical seal from abrasive particles and enhancing the pump's durability.

Agitator

Effectively prevents the air-lock phenomenon, which can easily occur in vortex and semi-vortex pumps, ensuring stable pump operation. It also effectively agitates sludge, preventing blockages.

Performance Curves

Standard operation and automatic operation models have identical performance.

Model Lineup

・Threaded connection fittings for piping are available upon request.

・Weight does not include cable.