Wilo-Helix FIRST V
High efficiency and robustness for large buildings and other fields of application.
High efficiency and robustness for large buildings and other fields of application.
The Wilo-Helix FIRST V is a highly efficient, vertical and multistage pump with a robust pump housing made of grey cast iron and an IE3 motor. It is suitable for applications ranging from water supply and pressure boosting to integration in cooling circuits and industrial applications.
The compact design makes installing and operating the pump extremely convenient. The combination of a housing made of grey cast iron with corrosion-resistant stainless-steel hydraulics provides the Wilo-Helix FIRST V with exceptional operational reliability and high energy efficiency.
Recommended services
Your advantages
- IE3 fixed-speed motor ensures high efficiency
- Durable and robust with pump housing made of grey cast iron with cataphoretic coating and the laser-welded/cast stainless-steel hydraulics (AISI 304)
- Space-saving as a result of the compact design with integrated mechanical seal – with an operating pressure of up to 16 bar (above this with cartridge mechanical seal)
- Maintenance made easy through convenient access to pump components, such as the bearing integrated in the lantern, as well as the spacer coupling and the cartridge mechanical seal (if used)
- Suitable for high-temperature environments with a standard ambient temperature of up to 50 °C without power dissipation
Product features
- Efficient IE3 fixed-speed motor
- Lifting bolts
- Integrated standard mechanical seal (up to 16 bar) to save space
- Laser-welded/cast stainless-steel hydraulics (AISI 304) with high corrosion resistance
- Robust grey-iron pump housing with cataphoretic coating
- Round flanges (PN 16/25/40)
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 = 16 bar + PN 16 flanges (≤ 16 m3/h: oval flanges) | |
25 = 25 bar + PN 25 flanges | |
30 = 30 bar + PN 40 flanges | |
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
- IP rating: IP55
- 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 FIRST V 22 – 105: 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 |
| Language | en |
PDF (5 MB)Wilo-Helix V, FIRST V, 2.0-VE 22-36-52
| Article Number | 4120943 |
| Edition | 02/2022 |
| Number of pages | 28 |
| Language | en |
PDF (7 MB)Wilo-Helix V ATEX
| Article Number | 4213806 |
| Edition | 2020-10 |
| Number of pages | 44 |
| Language | ar, cs, de, en, es, fr, it, pl, pt, ru, uk |
PDF (4 MB)Wilo-Helix V, FIRST V, 2.0-VE 22, 36, 52, 80, 105
| Article Number | 4266341 |
| Edition | 2025-02 |
| Number of pages | 24 |
| Language | en |
PDF (6 MB)Group Statement
Group Statement REACH
| Edition | 2021-05 |
| Number of pages | 5 |
| Language | language neutral |
PDF (271 KB)Standard Conformity
Standard Conformity 2223446-02
| Number of pages | 1 |
| Language | language neutral |
PDF (331 KB)Standard Conformity 2224080-01
| Number of pages | 1 |
| Language | language neutral |
PDF (228 KB)CE
CE 032231-17
| Number of pages | 1 |
| Language | language neutral |
PDF (463 KB)CE 036329-20
| Number of pages | 1 |
| Language | language neutral |
PDF (299 KB)CE 2117757-09
| Number of pages | 6 |
| Language | language neutral |
PDF (219 KB)CE 2117773-09
| Number of pages | 6 |
| Language | language neutral |
PDF (221 KB)CE 2215694-01
| Number of pages | 3 |
| Language | language neutral |
PDF (235 KB)CE 2215695-01
| Number of pages | 3 |
| Language | language neutral |
PDF (241 KB)CE 2223846-01
| Number of pages | 6 |
| Language | language neutral |
PDF (368 KB)CE 2223847-01
| Number of pages | 6 |
| Language | language neutral |
PDF (367 KB)CE 4212980-05
| Number of pages | 7 |
| Language | language neutral |
PDF (240 KB)