Wilo-Helix EXCEL

Special features/product advantages

  • Highly efficient EC motor of energy efficiency class IE5 in accordance with IEC 60034-30-2
  • Integrated electronic control “High-Efficiency Drive”
  • Simple operation thanks to tried-and-tested Green 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 pumps with parts that come in contact with the fluid made of stainless steel (EPDM version)

Series description

Design

Non-self-priming, highly efficient fully stainless-steel high-pressure multistage centrifugal pump with EC motor of energy efficiency class IE5 in accordance with IEC 60034-30-2, in vertical design with integrated high-efficiency drive and in-line connections

Application

  • Water supply and pressure boosting
  • Industrial circulation systems
  • Process water
  • Closed cooling circuits
  • Washing systems
  • Irrigation

Type key

Example:Helix EXCEL 22 02/2 - 1 / 16 / E / KS
Helix EXCELVertical high-pressure multistage centrifugal pump in in-line design (electronically controlled)
22Flow rate in m3/h
02Number of impellers
2Number of trimmed impellers
1Pump material
 1 = Pump housing 1.4301 (AISI 304)
Hydraulics 1.4307 (AISI 304L);
Baseplate EN-GJL 250, cataphoretic coated;
[only Helix EXCEL 16.. and smaller]
 2 = Pump housing 1.4404 (AISI 316L)
Hydraulics 1.4404 (AISI 316L)
Baseplate EN-GJL 250, cataphoretic coated
 3 = Pump housing EN-GJL-250 (cataphoretic-coated) Hydraulics 1.4307 (AISI 304L);
[only Helix 22.. and larger]
16Maximum operating pressure in bar
 16 = 16 bar (PN 16 flange)
 25 = 25 bar (PN 25 flange)
EGasket type
E = EPDM
V = FKM
KCartridge mechanical seal
SThe coupling guard is on a line with suction and discharge ports of the pump

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: -15 to +50°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, guide vanes and stage housings made of corrosion-resistant material

Materials

Helix EXCEL 2, 4, 6, 10, 16:

Standard version

  • Impellers, stage housings and guide vanes made of stainless steel 1.4307 (AISI 304L)
  • Pump housing made of stainless steel 1.4301 (AISI 304)
  • Baseplate and lantern in EN-GJL-250 (cataphoretic coated)
  • Shaft made of stainless steel 1.4301 (AISI 304) or 1.4462 (AISI 318LN) (depending on version)
  • Sleeve under the mechanical seal 1.4404 (AISI 316L)
  • O-ring of EPDM (FKM gasket on request)
  • Jacket pipe made of stainless steel 1.4301 (AISI 304)

For aggressive media

  • Impellers, stage housings and guide vane made of stainless steel 1.4404 (AISI316L)
  • Pump housing of stainless steel 1.4404 (AISI 316L)
  • Shaft made of stainless steel 1.4404 (AISI 316L) or 1.4462 (AISI318LN) (depending on version)
  • Sleeve under the mechanical shaft seal 1.4404 (AISI 316L)
  • O-ring of FKM (EPDM gasket on request)
  • Jacket pipe made of stainless steel 1.4404 (AISI 316L)

Helix EXCEL 22, 36, 52:

Standard version

  • Stage housings, impellers, guide vane made of stainless steel 1.4307 (AISI 304L)
  • Pump housing made of stainless steel 1.4301 (AISI 304) or cataphoretic-coated grey cast iron EN-GJL 250; loose flanges made of cataphoretic-coated grey cast iron EN-GJL 250 for Helix V 22/ EN-GJS 400 for Helix EXCEL 36-52
  • Shaft made of stainless steel 1.4057 (AISI 431)
  • Sleeve under the mechanical seal 1.4404 (AISI 316L)
  • O-ring of FKM (EPDM gasket on request)
  • Jacket pipe made of stainless steel 1.4301 (AISI 304)

For aggressive media

  • Stage housings, impellers, guide vane made of stainless steel 1.4404 (AISI 316L)
  • Pump housing made of stainless steel 1.4409 (AISI316L); 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 (AISI 304)
  • Shaft made of stainless steel 1.4404 (AISI316L) or 1.4462 (AISI 318LN) (depending on version)
  • Sleeve under the mechanical shaft seal 1.4404 (AISI 316L)
  • O-ring of FKM (EPDM gasket on request)
  • Jacket pipe made of stainless steel 1.4404 (AISI 316L)

Scope of delivery

  • Helix EXCEL high-pressure multistage centrifugal pump
  • Installation and operating instructions
  • Helix EXCEL 2 – 16 (version PN16 with oval flanges): Counter flanges made of stainless steel with the corresponding screws, nuts and gaskets

General notes - ErP (ecological design-) directive

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.

Duty chart

Pump curves Minimum Efficiency Index (MEI): ≥ 0.7

Pump curves in accordance with ISO 9906: 2012 3B

Downloads

Clean Water

Page format A4
Number of pages 24

PDF (8 MB)

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General overview

Edition 2017
Page format A4
Number of pages 72

PDF (46 MB)

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Wilo-Helix EXCEL 2-4-6-10-16

Article Number 4152001
Edition 03/13
Version number 01
Page format A4
Number of pages 108

PDF (8 MB)

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Wilo-Helix EXCEL 22-36-52

Article Number 4152003
Edition 03/15
Version number 02
Page format A4
Number of pages 108

PDF (8 MB)

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