Roll over image to zoom
SKU: 1HM11S05M
Lowara 1HM11S05M Stainless Steel TEFC Multistage Centrifugal Pump for Clean Water Supply with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
The Lowara 1HM11S05M is engineered for residential and light-industrial liquid handling where consistent pressure is required for water transfer and circulation. This horizontal multistage centrifugal pump is designed to handle clean fluids in diverse building service environments, providing a stable flow profile for demanding systems. Its horizontal configuration ensures simplified installation within compact plant rooms or tight utility spaces.
Equipped with a motor output of 0.55 kW / 240v, the system maintains steady hydraulic delivery across its operating envelope. It achieves a Max Head 63.5 m and a Max Flow 40 L/Min, providing reliable performance for various pressurized delivery tasks. The suction and discharge ports are sized at 25 mm, allowing for integration into standard residential plumbing networks.
This pump utilizes a multistage architecture to generate pressure efficiently through multiple internal pumping chambers. The hydraulic design promotes flow stability and operational longevity, ensuring the unit remains effective under continuous duty cycles. The internal liquid movement is guided by high-precision stainless steel components, minimizing turbulence and optimizing the energy conversion process during operation.
Built with AISI 304 stainless steel, the pump body is constructed to withstand common operating pressures, ensuring structural rigidity. The unit features an IP55 protection rating for the motor, guarding against environmental moisture and particulates. The TEFC motor arrangement facilitates heat dissipation, while the close-coupled design secures the hydraulic head directly to the motor frame, reducing the overall footprint and maintenance requirements for the end-user.
Features:
- Integrated 2-pole squirrel-cage motor with TEFC cooling architecture
- AISI 304 stainless steel hydraulic construction for fluid compatibility
- Suitable for installation in WRAS and ACS certified clean water systems
- Compact 25 mm threaded suction and delivery port connections
- Asynchronous motor design ensuring consistent operational speeds
- Engineered for fluid temperature ranges between -10°C and +60°C
SPECIFICATIONS
| Max Flow | 40 L/Min |
| Max Head | 63.5 m |
| Power | 0.55 kW / 240v |
| Rated Current | 2.97 Amps |
| Suitable For | Irrigation and Pressure Boosting |
| 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 peak dynamic lift head can this multistage circulation pump develop upward?
Operating across vertical piping runs, the 1HM11S05M produces a maximum dynamic head of approximately 65.1 m to lift clean water upward.
What peak water delivery rate can this multistage circulation pump deliver across plumbing?
Delivering high fluid volume, the 1HM-11S-05M discharges a peak delivery flow rate of approximately 40 L/Min through its Rp 1" (25 mm) suction and Rp 1" (25 mm) discharge.
How do the stainless alloy components protect this pressure booster from fluid corrosion?
Constructed with all-stainless metallurgy, the 1HM 11S 05M combines an AISI 304 stainless steel casing alloy with AISI 304 closed stainless impellers and durable ceramic/carbon/EPDM seal construction to prevent fluid corrosion.
What electrical power consumption in kilowatt and supply voltage feed this single-phase booster?
Operating on a 220–240 V, 50 Hz, single-phase power supply, the 1HM_11S_05M features an electrical motor power rating of 0.55 kW (0.75 HP) drawing an electrical full-load current of 3.82 A.
What horizontal installation guidelines and floor drainage provisions apply to this circulation pump?
Mounting the 1HM11S05M requires a rigid level horizontal foundation base with adequate drainage, alongside an external in-line non-return check valve to prevent reverse flow and backflow.
Need help choosing the right pump?
Our team of pump experts are here to help you find the perfect solution for your application.
- Free expert advice
- Pump sizing & system recommendations
- Fast response — call or email us