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SKU: 1HM25S11M
Lowara 1HM25S11M Stainless Steel Compact Multistage Centrifugal Pump for Process Water with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
The Lowara 1HM25S11M is engineered for diverse industrial and building service applications requiring consistent fluid transport. Designed for installation where high-head performance is necessary, this horizontal multistage centrifugal pump excels in clean liquid handling. Its compact configuration allows for integration into small-scale process systems, ensuring reliable water circulation and pressure management in environments where space is at a premium.
Built for rigorous duty, this model demonstrates technical stability with a Max Head 146 m and a Max Flow 40 L/Min. The unit incorporates a high-efficiency motor operating at 1.1 kW / 240v, suitable for continuous operation in various technical setups. Plumbing connections are configured for standard 25mm inlet and 25mm outlet piping, facilitating straightforward mechanical integration into established infrastructure.
Technically advanced, the hydraulic assembly centers on precision-engineered stages that maintain flow stability across varying pressure demands. The multistage arrangement minimizes turbulence, facilitating a smooth movement of liquids even at elevated head pressures. This architecture supports long-term operational efficiency, ensuring that flow requirements are met with precision in high-demand transfer scenarios.
Constructed from AISI 304 stainless steel, the pump body offers superior chemical resistance and structural integrity. The design utilizes a close-coupled TEFC squirrel-cage motor, providing an IPX5 protection rating for the pump assembly. Electrical safety is managed through internal thermal overload protection, while the mechanical seal interface complies with standard hydraulic isolation protocols to prevent leakage and ensure operational safety.
Features:
- Integrated 2-pole TEFC motor with 155 (F) insulation class for operational stability
- AISI 304 stainless steel liquid-contacting surfaces for chemical compatibility
- Compatible with fluids ranging from -10°C to +60°C operating temperatures
- Standardized 25mm suction and delivery port dimensions for piping alignment
- TEFC motor enclosure with IP55 protection standard for industrial dust and moisture
- Compact single-piece casing design minimizes connection points and assembly footprint
SPECIFICATIONS
| Max Flow | 40 L/Min |
| Max Head | 146 m |
| Power | 1.1 kW / 240v |
| Rated Current | 6.42 Amps |
| Suitable For | Cooling Systems and Process Water Handling |
| Body Material | AISI 304 Stainless Steel |
| Liquid Temperature | '-10°C to +60°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 metallurgical alloy grades ensure long-term corrosion resistance in this tall booster?
All-metal stainless construction safeguards the 1HM25S11M, utilizing AISI 304 stainless steel casing and closed impeller alloy metallurgy to eliminate fluid corrosion and particulate wear.
What supply voltage and electrical power rating in kilowatt run this high-stage motor?
Motor power on the 1HM-25S-11M is rated at an electrical output of 1.1 kW (1.5 HP), drawing an electrical current of 6.66 A from a 220–240 V, 50 Hz, single-phase power supply.
Where should this high-stage booster be anchored on a horizontal foundation base to ensure drainage?
Installation of the 1HM 25S 11M calls for a sturdy horizontal floor base with perimeter drainage, accompanied by an external in-line non-return check valve to stop system backflow.
What maximum vertical lift head does this high-stage multistage booster generate?
Delivering steady vertical lift, the 1HM_25S_11M generates a maximum dynamic head of approximately 147 m to propel fluid across high elevation rises.
What water flow volume and discharge connection sizes are featured on this tall booster?
Water transfer volume reaches a peak delivery flow of approximately 40 L/Min on the 1HM25S11M, connecting via Rp 1" (25 mm) suction and Rp 1" (25 mm) discharge.
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