Multistage stainless steel pump with permanent magnet VFD drive for larger household and hot water duties.
The IMH1500 covers a wide power range in one multistage stainless body, suiting larger homes, apartment supply and hot water pressurisation. Stainless steel hydraulic parts keep noise low and efficiency high, the man machine interface keeps operation simple, and both stainless and cast iron versions are available for different water quality.
2026 catalog · IMH SERIES
Multistage stainless pump for larger household demands
IMH1500 Permanent Magnet VFD Multistage Stainless Steel Pump · data from the 2026 catalog and the model page.
The specification confirmed for an order is the one stated in the order confirmation.
Same fields, units and order for every model. Fields that are not published in the catalog are omitted.
Electrical
Hydraulic
Construction and environment
Weights and packing
IMH1500 power stage data
Every value is taken from the 2026 catalog table for this model.
| Stage | Power (kW) | Power (HP) | Current (A) | Max flow (L/min) | Max head (m) | Suction (m) |
|---|---|---|---|---|---|---|
| Power-1 | 0.37 | 0.5 | 2.6 | 66 L/min (4 m³/h) | 22 m (72 ft) | 9 m (30 ft) |
| Power-2 | 0.65 | 0.86 | 4.7 | 76 L/min (4.6 m³/h) | 33 m (108 ft) | 9 m (30 ft) |
| Power-3 | 1 | 1.3 | 6.8 | 93 L/min (5.6 m³/h) | 43 m (141 ft) | 9 m (30 ft) |
| Power-4 | 1.3 | 1.7 | 8.9 | 100 L/min (6 m³/h) | 49 m (161 ft) | 9 m (30 ft) |
| Power-5 | 1.5 | 2 | 10.8 | 105 L/min (6.3 m³/h) | 50 m (164 ft) | 9 m (30 ft) |
Specification values are taken from the 2026 catalog tables for this model.
Head against capacity as published in the catalog, with metric and imperial axes.
Q-H grid data
| Stage | 22 m³/h (367 L/min) | 21 m³/h (350 L/min) | 20 m³/h (333 L/min) | 18 m³/h (300 L/min) | 16 m³/h (267 L/min) | 13 m³/h (217 L/min) | 10 m³/h (167 L/min) | 8 m³/h (133 L/min) | 6 m³/h (100 L/min) | 4 m³/h (67 L/min) | 2 m³/h (33 L/min) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Power 3 (m) | 43 m (141 ft) | 42 m (138 ft) | 41 m (135 ft) | 39 m (128 ft) | 38 m (125 ft) | 35 m (115 ft) | 33 m (108 ft) | 31 m (102 ft) | 27 m (89 ft) | 22 m (72 ft) | 18 m (59 ft) |
| Power 5 (m) | 50 m (164 ft) | 48 m (157 ft) | 47 m (154 ft) | 46 m (151 ft) | 45 m (148 ft) | 44 m (144 ft) | 43 m (141 ft) | 38 m (125 ft) | 36 m (118 ft) | 31 m (102 ft) | 26 m (85 ft) |
All dimensions in millimetres unless stated otherwise. Dimension references Port to port, Body height, Base length, Base width are printed on catalog page 15.
| Model | Dimensions | Weight |
|---|---|---|
| IMH1500 |
| 8.5 kg |
rooftop tank and water tower boosting, villa and multi-storey supply, plant room boosting and closed-loop circuits.
Points that apply to this model, from the catalog and the site installation guidance.
Packing information published for this model.
Packing data is taken from the catalog. Loading quantity per container is confirmed per order.
Ordering information for the 2026 range.
Warranty: 2 yearsWarranty and After-sales
Voltage and market variants
This model is supplied on 170 - 260 V, 50/60 Hz for standard single-phase range for most markets. Used across the permanent magnet inverter and multistage ranges.
Other voltages are arranged on request. See the selection guide for the full list.
PDF files are generated from the catalog data published on this page.
Datasheet
Model, key specifications, power stage data and packing details generated from the catalog data on this page.
Performance Curve
Head and flow curve with metric and imperial axes, plus the Q-H grid data.
Dimension Data
Dimension table for each model in the range, in millimetres and inches.
Models from the same series and models that share the same boosting level.
In Calliope standard laboratory tests, users saved approximately 40% on electricity costs.
Result of Calliope standard laboratory testing. Actual savings vary with operating conditions.
Quiet operation: typically around 45 dB, with selected models as low as 40 dB, as measured under Calliope standard laboratory conditions.
Working on a IMH1500 project? Send the duty point, market and volume and the export team will confirm the configuration.
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