Wilo-Helix EXCEL

Series description

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)

Design type

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

Equipment/function

  • Impellers, guide vanes and stage housings made of corrosion-resistant material

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

Type key

Example:

Helix EXCEL 22 02/2 - 1 / 16 / E / KS

Helix EXCEL

Vertical high-pressure multistage centrifugal pump in in-line design (electronically controlled)

22

Flow rate in m3/h

02

Number of impellers

2

Number of trimmed impellers

1

Pump 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]

16

Maximum operating pressure in bar

16 = 16 bar (PN 16 flange)

25 = 25 bar (PN 25 flange)

E

Gasket type E = EPDM V = FKM

K

Cartridge mechanical seal

S

The coupling guard is on a line with suction and discharge ports of the pump

Technical data

  • 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

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)

Downloads

General overview 2018 International version

Article Number 2200591
Edition 2018
Version number 1
Page format 209.9 x 297.0 mm
Number of pages 72

PDF (11 MB)

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