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Wilo-Helix FIRST V

Series description

Your advantages

  • Efficiency-optimised, laser-welded, optimised 2D/3D hydraulics
  • Corrosion-resistant impellers, guide vanes and stage housings
  • Flow and degassing-optimised hydraulic parts
  • Reinforced pump housing, flow and NPSH optimised
  • Space-saving and easy maintenance thanks to compact design
  • Particularly sturdy coupling guard

Construction

Non-self-priming, high-efficiency multistage high-pressure centrifugal pump in vertical design with in-line connections

Application

  • Water distribution and pressure boosting
  • Industrial circulation systems
  • Process water
  • Closed cooling circuits
  • Fire extinguishing systems
  • Washing systems
  • Irrigation

Equipment/function

  • Corrosion-resistant impellers, guide vanes and stage housings

Scope of delivery

  • Helix FIRST V high-pressure multistage centrifugal pump
  • Installation and operating instructions
  • Helix FIRST 2 – 16 (version PN16 with oval flanges): Cast iron counter flanges with the corresponding screws, nuts and gaskets

Type key

Example:

Helix FIRST V(F) 3606/2-5/25/E/KS/../400-50/-38FF265

Helix FIRST V(F)

Vertical high-pressure multistage centrifugal pump in in-line design

(F) = VdS certified pump version

36

Flow rate in m3/h

06

Number of impellers

2

Number of trimmed impellers

5

Pump material

5 = Pump housing EN-GJL-250 cataphoretic-coated Hydraulics 1.4307 (AISI 304L)

25

Maximum operating pressure in bar

16 = Helix FIRST V 2.. to 16..: 16 bar: Oval flange PN 16 Helix FIRST V 22.. to 52..: 16 bar: DIN round flange PN 16

25 = Helix FIRST V 2.. to 16.. -5/25/E/S/..: 16 bar: DIN round flange PN 25 Helix FIRST V 2.. to 16.. -5/25/E/KS/..: 25 bar: DIN round flange PN 25 Helix FIRST V 22.. to 52..: 25 bar: DIN round flange PN 25

30 = Helix FIRST V 2.. to 52..: 30 bar: DIN round flange PN 40

E

Seal type E = EPDM

K

Cartridge type mechanical seal

S

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

400

Connection voltage in V

50

Frequency in Hz

-38FF265

Diameter motor shaft – lantern size (pump version without motor)

..

Optional

Technical data

  • Electrical connection: 3~400 V (±10 %), 50 Hz
    • ≤ 4 kW 230 V/ 400 V; Δ/Y
    • > 4 kW 400 V/ 690 V; Δ/Y
  • Fluid temperature range: -20 to 120 °C
  • Max. operating pressure: 16, 25 or 30 bar
  • Max. inlet pressure of 10 bar
  • Protection class: IP 55
  • Max. ambient temperature: -15 °C – +50 °C
  • Helix FIRST V 2 – 16: PN 16 with oval flanges, PN 25/PN 40 with round flanges according to ISO 2531 and ISO 7005
  • Helix FIRSTV 22 – 52: PN 16/PN 25/PN 40 with round flanges according to ISO 2531 and ISO 7005

Materials

  • Impellers, stage housings and guide vanes of stainless steel 1.4307 (AISI 304L)
  • Pump housing made of EN-GJL-250, cataphoretic-coated
  • Shaft made of stainless steel 1.4057 (AISI 304L)
  • Sleeve under the mechanical seal 1.4404 (AISI 316L)
  • O-ring made of EPDM
  • Jacket pipe made of stainless steel 1.4301 (AISI 304)

Description/construction

  • Pumps can be adapted to specific circumstances on request (e.g. motor protection, IE4 motor efficiency class, VdS certified Wilo-Helix pumps, ATEX, extended ambient temperature range).

Downloads

REACH regulation

Edition 2018-10
Page format 209.9 x 296.7 mm
Number of pages 4

PDF (581 kB)

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General overview 2019 International version

Article Number 2200591
Edition 2018
Version number 1
Page format 209.9 x 297.0 mm
Number of pages 74

PDF (42 MB)

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