- High-efficiency EC motor (better than the IE4 efficiency value)
- Integrated electronic control “High-Efficiency Drive”
- Simple operation thanks to tried-and-tested "red-button technology" and a clearly arranged display
- User-friendly "X-Seal" cartridge mechanical seal and spacer coupling (from 5.5 kW) for fast and easy maintenance
- Flexible integration into building automation
- Drinking water approval for all components that come in contact with the fluid (EPDM version)
- Minimum Efficiency Index (MEI) ≥ 0.7
- Electrical connection:
- 3~ 50 Hz : 400V +/-10%
- 3~ 60 Hz : 380V +/-10%
- 3~ 60 Hz : 480V +/-10%
- Fluid temperature range:
- Helix EXCEL 2 – 16 (EPDM): -30 to 120 °C
- Helix EXCEL 2 – 16 for aggressive media (FKM): -15 to 90 °C
- Helix EXCEL22 – 36 (EPDM): -20 to 120 °C
- Helix EXCEL22 – 36 for aggressive media (FKM): -15 to 90 °C (-30 to 120 °C with EPDM gasket on request)
- Max. operating pressure: 16/25 bar
- Protection class: IP 55
- Max. ambient temperature: +40°C (extended temperature ranges on request)
- Available versions:
- Helix EXCEL 2 – 16: PN 16 with oval flanges, PN 25 with round flanges according to ISO 2531 and ISO 7005
- Helix EXCEL 22 – 36: PN 16 and PN 25 with round flanges according to ISO 2531 and ISO 7005
Impellers, diffusors and stage housings made of corrosion-resistant material
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Helix EXCEL 2, 4, 6, 10, 16:
Standard version
- Impellers, stage housings and diffusors of stainless steel 1.4307
- Pump housing of stainless steel 1.4301
- Baseplate and lantern in EN-GJL-250 (cataphoretic coated)
- Shaft of stainless steel 1.4301 or 1.4462 (depending on version)
- Sleeve under the mechanical seal 1.4404
- O-ring of EPDM (FKM gasket on request)Jacket pipe of stainless steel 1.4301
For aggressive media
- Impellers, stage housings and diffusors of stainless steel 1.4404
- Pump housing of stainless steel 1.4404
- Shaft of stainless steel 1.4404 or 1.4462 (depending on version)
- Sleeve under the mechanical shaft seal 1.4404
- O-ring of EPDM (FKM gasket on request)
- Jacket pipe of stainless steel 1.4404
Helix EXCEL 22, 36, 52:
Standard version
- Stage housings, impellers, diffusors of stainless steel 1.4307
- Pump housing of cataphoretic-coated grey cast iron EN-GJL 250, loose flanges of EN-GJS 400 for Helix EXCEL 36-52.
- Shaft of stainless steel 1.4057
- Sleeve under the mechanical seal 1.4404
- O-ring of EPDM (FKM gasket on request)
- Jacket pipe of stainless steel 1.4301
For aggressive media
- Stage housings, impellers, diffusors of stainless steel 1.4404 with passivation for highest possible resistance to corrosion
- Pump housing: all parts which come in contact with the media are made of cast stainless steel 1.4409; loose flanges of cataphoretic-coated grey cast iron EN-GJL 250 for Helix EXCEL 22 / EN-GJS 400 for Helix EXCEL 36-52.
- Baseplate of stainless steel 1.4301
- Shaft of stainless steel 1.4404 or 1.4462 (depending on version)
- Sleeve under the mechanical shaft seal 1.4404
- O-ring of FKM (EPDM gasket on request)
- Pressure shroud of stainless steel 1.4404
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- Helix EXCEL high-pressure multistage centrifugal pump
- Installation and operating instructions
- Helix EXCEL 2 – 16 (version PN16 with oval flanges): Cast iron counter flanges with the corresponding screws, nuts and gaskets
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The benchmark for most efficient water pumps is MEI ≥ 0.70The efficiency of a pump with a trimmed impeller is usually lower than that of a pump with the full impeller diameter. The trimming of the impeller will adapt the pump to a fixed duty point, leading to reduced energy consumption. The minimum efficiency index (MEI) is based on the full impeller diameter.The operation of this water pump with variable duty points may be more efficient and economic when controlled, for example, by the use of a variable speed drive that matches the pump duty to the system.Information on benchmark efficiency is available at www.europump.org/efficiencychartsPumps with power consumption > 150 kW or a volume flow QBEP < 6 m3/h are not subject to the Ecodesign Directive for water pumps. Therefore, no MEI value is shown.
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