Description
Lowara e-HM Fixed Speed Multistage Pumps have been designed to cover a wide range of applications in the residential and small commercial building services from the water supply to pressure boosting as well as heating and cooling applications.
The pumps are non-self-priming, end-suction horizontal multistage, high pressure centrifugal pump, with axial threaded inlet and radial threaded outlet. The pumps are close-coupled design and are equipped with non-standard Lowara motors. The e-HM is equipped with mechanical seal.
Pump Specifications
- Flow rate: up to 29 m3/h.
- Head: up to 159 m.
- Ambient temperature: – for single-phase version: from -15°C to +45°C (from -15°C to +40°C for models 1HM06S/N, 3HM03S/N, 3HM02P, 5HM02S/N and for all models equipped with 0,95 kW motor). – for three-phase version: from -15°C to +50°C.
- Minimum temperature of the pumped liquid: from -10°C to -30°C according to gasket material.
- Maximum temperature of the pumped liquid: – for single-phase version: +60°C. – for three-phase version: up to +120°C depending on the model and the mechanical seal.
- Maximum operating pressure: – for pumps with Noryl impeller: 10 bar (PN 10). – for pumps with stainless steel impeller: up to 16 bar (PN 16) depending on the model and the mechanical seal.
- Connections: Rp threaded for both suction and discharge manifold.
- Hydraulic performances compliant with ISO 9906:2012 – Grade 3B (ex ISO 9906:1999 – Annex A)
Motor Specifications
- The e-HM are equipped with surface motors designed and manufactured in accordance with EN standards. The e-HM series can be equipped as well with variable speed drivers such as the e-SM drive and the Hydrovar.
- Electric short-circuit squirrel-cage motor (TEFC), enclosed construction, air-cooled.
- 2-pole.
- IP 55 protection grade as motor only (EN 60034-5).
- IP X5 as electric pump (EN 60335-1).
- Insulation class 155 (F).
- Performances according to EN 60034-1.
- Standard voltage:
- Single-phase: 220-240 V, 50 Hz.
- Three-phase: 220-240/380-415 V, 50 Hz for powers up to 3 kW. 380/415/660-690 V, 50 Hz for powers above 3 kW.
- Three-phase from 0,75 to 5,5 kW efficiency class IE3.
