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SKU: 3HM21S22T
Lowara 3HM21S22T Stainless Steel Calibrated Multistage Centrifugal Pump for Cooling with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
The Lowara 3HM21S22T provides efficient and reliable pumping performance. Environmental temperature control within closed-loop cooling systems requires precise, high-pressure fluid displacement. This unit addresses that requirement by employing a precision-engineered multistage configuration designed to handle moderate flow volumes against significant system resistance. By utilizing a horizontal mounting orientation, the assembly simplifies integration into tight mechanical plant spaces while maintaining structural stability under constant load conditions. The internal hydraulic pathway is engineered to minimize turbulence, ensuring that clean process fluids move through the system with consistent velocity, thereby supporting thermal regulation objectives in complex industrial and secondary water circuits.
Operational threshold limits are defined by a Max Head 157 m and a Max Flow 73.3 L/Min, providing reliable performance for demanding circulation tasks. Energy conversion is managed by an IE3 efficiency class motor rated at 2.2 kW / 415v, which adheres to strict modern industrial energy standards. This electrical setup ensures the assembly functions within a 4.13 Amps current draw, maintaining operational effectiveness throughout continuous duty cycles without compromising stability in high-pressure hydraulic environments.
Fluid dynamics are governed by a multistage impeller arrangement crafted entirely from AISI 304 stainless steel, which significantly improves the mechanical life of the rotating components when handling processed fluids. The closed impeller design is calibrated to generate high pressure gradients, allowing the unit to overcome substantial system friction losses. Internal wear rings made of technopolymer assist in maintaining tight clearances between stages, which prevents internal recirculation and preserves the integrity of the pressure output regardless of the specific load demands placed upon the system during operation.
Protection and housing consist of a full AISI 304 stainless steel casing, offering excellent resistance against internal corrosion while ensuring compatibility with standard 25mm inlet and outlet plumbing connections. The motor assembly is rated IP55 for external protection against dust and low-pressure liquid jets, complemented by an insulation class 155 (F) for thermal stability. The entire pump configuration rests on a robust support frame, allowing for easy anchoring and alignment during installation in commercial infrastructure projects where space-efficient, horizontal mechanical equipment is specified.
Features:
- TEFC two-pole short-circuit squirrel-cage motor configuration
- Silicon carbide and ceramic mechanical seal contact surfaces
- EPDM elastomer components for broad chemical compatibility
- Certified for potable water applications via WRAS and ACS standards
- Integrated thermal protection for long-term electrical safety
- Compliant with ISO 9906:2012 Grade 3B hydraulic precision benchmarks
SPECIFICATIONS
| Max Flow | 73.3 L/Min |
| Max Head | 157 m |
| Power | 2.2 kW / 415v |
| Rated Current | 4.13 Amps |
| Suitable For | Industrial Cooling Systems |
| Body Material | AISI 304 Stainless Steel |
| Liquid Temperature | '-10°C to +120°C |
| Inlet Size | 25 mm |
| Outlet Size | 25 mm |
| Warranty | 12 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
What construction metallurgy and mechanical seal materials defend this multistage unit against attack?
Durability against abrasive particulate erosion and chemical attack in the 3HM21S22T is delivered by AISI 304 stainless steel alloy construction.
What kilowatt rating and full-load electrical current draw apply to this commercial water booster?
Supplied by a 380–415 V, 50 Hz, three-phase electrical line, the 3HM-21S-22T features a motor power rating of 2.2 kW (3.0 HP) at an electrical current draw of 4.13 A.
What horizontal installation guidelines and floor drainage clearance apply to this commercial unit?
Reverse flow protection across the 3HM 21S 22T requires an external in-line non-return check valve, with horizontal mounting on a drained base.
What peak dynamic lift head is delivered by this multistage pressure pump upward?
Producing steady elevation lift, the 3HM_21S_22T delivers a peak dynamic head capability of approximately 159 m.
What fluid flow capacity and discharge port threads apply to this multistage transfer pump?
Water transfer rate peaks at a delivery flow volume of approximately 73.3 L/Min on the 3HM21S22T, connecting via Rp 1" (25 mm) suction and Rp 1" (25 mm) discharge.
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