Helix Excel - Centrifugal Pump

Application

• Water supply and pressure boosting
• Industrial circulation systems
• Process water
• Cooling water circulation systems
• Fire extinguishing systems
• Washing systems
• Irrigation

Special features/product advantages

• 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)

Technical data

• 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

Equipment/function
Impellers, diffusors and stage housings made of corrosion-resistant material

Materials
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

Scope of delivery

• 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