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SKU: 1HM20S11T
Lowara 1HM20S11T Stainless Steel IE3 Multistage Centrifugal Pump for Process Cooling with Closed Impeller
Australia-Wide
(08) 9240 2992
Official Lowara
Peace of Mind
Product Overview
The Lowara 1HM20S11T provides efficient and reliable pumping performance. Corrosive, chemically active municipal supply loops benefit from the resilient stainless steel construction of this e-HM series pump. Suited for complex industrial cooling configurations and high-pressure process water requirements, the unit maintains hydraulic integrity under demanding operational cycles. It provides a stable flow path for clean, non-aggressive fluids across varied vertical and horizontal plant footprints.
Operational threshold limits are defined by a Max Head 119 m and a Max Flow 40 L/Min. Powering these requirements is a robust IE3 efficiency motor rated at 1.1 kW / 415v, ensuring precise energy consumption relative to output. The hydraulics are engineered for sustained performance within these specified parameters, maintaining efficiency during extended load cycles.
Fluid dynamics are governed by a multistage impeller arrangement, meticulously crafted from AISI 304 stainless steel to prevent cavitation and ensure smooth liquid transition. The close-coupled design optimizes the internal hydraulic volume, reducing turbulence and enhancing the pressure generation profile across all stages. Mechanical seal interfaces are designed to resist thermal stress, allowing for fluid handling within a range of -10°C to +120°C.
Installation requires standard 25mm pipework connections to the suction and delivery ports. The unit features an IP55 motor protection rating, safeguarding internal electrical components against ingress in challenging environments. Mounted on a TEFC asynchronous frame, the pump facilitates easy integration into existing circulation systems, utilizing a high-efficiency 2-pole configuration for steady, vibration-dampened operation.
Features:
- Integrated 2-pole squirrel-cage rotor architecture
- AISI 304 stainless steel hydraulic pump housing
- IP55 environmental ingress protection rating
- Silicon carbide mechanical sealing surfaces
- EPDM elastomer components for chemical compatibility
- Three-phase 415v electrical terminal configuration
SPECIFICATIONS
| Max Flow | 40 L/Min |
| Max Head | 119 m |
| Power | 1.1 kW / 415v |
| Rated Current | 2.22 Amps |
| Suitable For | Cooling Systems / Process Water Handling |
| 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 motor kilowatt rating and electrical voltage supply drive this three-phase process pump?
Supplied through a 380–415 V, 50 Hz, three-phase electrical power connection, the 1HM20S11T operates a motor power rating of 1.1 kW (1.5 HP) drawing an electrical current of 2.22 A.
How is reverse flow prevented when installing this process pump in a horizontal position?
Mounting the 1HM-20S-11T on a rigid horizontal base provides vibration isolation and drainage, while an external non-return check valve stops backflow.
What peak vertical elevation head does this water circulation pump achieve?
Operating against high elevation pressure, the 1HM 20S 11T achieves a peak dynamic head of approximately 121 m to raise water.
What peak water flow volume can this stainless circulation pump discharge through its outlet?
Connecting to service piping through Rp 1" (25 mm) suction and Rp 1" (25 mm) discharge, the 1HM_20S_11T discharges a maximum delivery flow of approximately 40 L/Min.
How does the stainless alloy casing construction resist corrosion and particulate erosion?
Durability against chemical corrosion on the 1HM20S11T is ensured by AISI 304 stainless steel casing alloys and closed stainless impellers.
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