Wilo-Helix FIRST V
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
Recommended services
Design
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-fighting systems
- Washing systems
- Irrigation
Equipment/function
- Corrosion-resistant impellers, guide vanes and stage housings
Typekey
Example: | Helix FIRST V 3606/2-5/25/E/KS/../400-50 |
Helix FIRST V | Vertical high-pressure multistage centrifugal pump in in-line design |
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-coatedHydraulics 1.4307 (AISI 304L) | |
25 | Maximum operating pressure in bar |
16 =Helix FIRST V 2.. to 16..: 16 bar: Oval flange PN 16Helix 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 25Helix FIRST V 2.. to 16.. -5/25/E/KS/..: 25 bar:DIN round flange PN 25Helix 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 typeE = 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 |
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
- Protection class: IP 55
- Max. ambient temperature: -15 °C – +40 °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, cataphoretically 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)
Construction
- Pumps can be adapted to specific circumstances on request (e.g. motor protection, ATEX, extended ambient temperature range).
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
Installation and operating instructions
Wilo-Helix V, .. FIRST V, ..2.0-VE 2-4-6-10-16
| Article Number | 4143727 |
| Edition | 2023-03 |
| Number of pages | 24 |
PDF (5 MB)Wilo-Helix V, FIRST V, 2.0-VE 22-36-52
| Article Number | 4120943 |
| Edition | 02/2022 |
| Number of pages | 28 |
PDF (7 MB)Wilo-Helix V ATEX
| Article Number | 4213806 |
| Edition | 2020-10 |
| Number of pages | 44 |
PDF (4 MB)Standard Conformity
Standard Conformity 2223446-02
| Number of pages | 1 |
PDF (331 KB)