Lowara 1HM08S05T Stainless Steel Tuned Multistage Centrifugal Pump for Filtration Loops with Closed Impeller

Achieving stable water pressure across multi-storey domestic layouts depends on the precise, consistent delivery found within the Lowara 1HM08S05T series. This horizontal multistage centrifugal unit manages high-head requirements in residential and light industrial environments where space is restricted. Its hydraulic profile is specifically tuned to maintain steady flow rates while navigating the resistance common in long-distance pipe networks or complex filtration loops. By utilizing a close-coupled geometry, the unit minimizes axial footprint, allowing for straightforward integration into cramped machinery rooms or existing modular plumbing arrays.

Operational threshold limits are defined by a Max Head of 47.7 m alongside a Max Flow of 40 L/Min. The assembly integrates a 0.53 kW / 415v motor, ensuring alignment with three-phase industrial site requirements. Consistent hydraulic output is sustained through the 2-pole, short-circuit squirrel-cage motor configuration, which achieves the necessary torque for demanding suction environments. The unit consumes a rated current of 1.32 Amps during peak operation, maintaining structural equilibrium even when subjected to variable load conditions in process water transfer duties.

Fluid dynamics are governed by an AISI 304 stainless steel impeller arrangement housed within a robust, TIG-welded external sleeve design. This structural selection facilitates efficient energy transfer, reducing internal turbulence while protecting the hydraulic integrity of the unit against cavitation stress. The multistage internal geometry allows for progressive pressure generation, meaning that fluid velocity is increased incrementally through each chamber rather than via a single, potentially stressful motion. This mechanical design choice supports the broad liquid temperature tolerance, ensuring that thermal expansion does not compromise internal tolerances.

Protection is provided by a TEFC enclosure rated at IP55 for the motor and IPX5 for the electric pump assembly, which effectively seals the internal windings against common industrial particulates and humidity. The casing is constructed from full AISI 304 stainless steel, offering high resistance to the corrosive potential of stagnant or chemically treated clean water. Mounted with an insulation class F rating, the motor is capable of withstanding ambient thermal stresses up to 50°C. Standardized 25 mm suction and delivery ports allow for flexible connection options using standard threading in various plumbing configurations.

Features:

• TEFC 2-pole squirrel-cage motor with IE3 efficiency class
• Suitable for continuous duty in clean liquid circulation
• Silicon carbide mechanical seal faces for low wear rates
• Certified for potable water transport via WRAS and ACS standards
• PPS technopolymer wear ring for internal clearance control
• IP55 motor ingress protection for humid environments