Our Products
WILO – Centrifugal Pump – HELIX Series
Centrifugal Pump
Non-self-priming, high-efficiency multistage high-pressure centrifugal pump in vertical design with in-line connections.
The pumps can be adapted to certain specific data (e.g. motor protection, motor efficiency class IE4, Wilo-Helix pumps with VdS, ATEX approval, extended ambient temperature range). These pumps are available with an integrated vertical frequency converter with inline connections.
APPLICATIONS
- Water distribution and collective overpressure
- Industrial circulation systems
- Process water
- Closed cooling circuits
- Fire protection installations
- Washing stations
- Irrigation
EQUIPMENT / FUNCTION
- Corrosion resistant impellers, diffusers and stepped bodies
Spécifications / Specifications
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
- 1~ 230 V (±10 %), 50 Hz, only Wilo-Helix V 2, 4, 6, 10
- Fluid temperature range:
- Helix V 2 – 16 (EPDM): -30 to 120 °C (130 °C on request)
- Helix V 2 – 16 for aggressive media (FKM): -15 to 90 °C
- Helix V22 – 52 (EPDM): -20 to 120 °C (130 °C on request)
- Helix V22 – 52 for aggressive media (FKM): -15 to 90 °C
- Max. operating pressure: 16/25/30 bar
- Max. inlet pressure of 10 bar
- Protection class: IP 55
- Max. ambient temperature: -15 °C – +50 °C (extended temperature ranges on request)
- Available versions:
- Helix V 2 – 16: PN 16 with oval flanges, PN 25/PN 40 with round flanges according to ISO 2531 and ISO 7005 (Victaulic coupling on request)
- Helix V 22 – 52: PN 16/PN 25/PN 40 with round flanges according to ISO 2531 and ISO 7005
Materials
Helix V 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 apparatuses of stainless steel 1.4404 (AISI 316L)
- Pump housing made of stainless steel 1.4404 (AISI 316L)
- Shaft made of stainless steel 1.4404 (AISI 316L) or 1.4462 (AISI 318LN) (depending on version)
- Sleeve under the mechanical seal 1.4404 (AISI 316L)
- O-ring of FKM (EPDM gasket on request)
- Jacket pipe made of stainless steel 1.4404 (AISI 316L)
Helix V 22, 36, 52:
- Standard version
- Stage housings, impellers, guide vane apparatuses made of stainless steel 1.4307 (AISI 304L)
- Pump housing made of stainless steel 1.4308 (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 V 36-52.
- Shaft made of stainless steel 1.4057 (AISI 431)
- 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
- Stage housings, impellers, and guide vane apparatuses made of stainless steel 1.4404 (AISI 316L)
- Pump housing: all parts which come in contact with the media are made of cast stainless steel 1.4409 (AISI 316L); loose flanges of cataphoretic-coated grey cast iron EN-GJL 250 for Helix V 22 / EN-GJS 400 for Helix V 36-52.
- Baseplate made of stainless steel 1.4301 (AISI 304)
- Shaft made of stainless steel 1.4404 (AISI 316L) or 1.4462 (AISI 318LN) (depending on version)
- Sleeve under the mechanical seal 1.4404 (AISI 316L)
- O-ring of FKM (EPDM gasket on request)
- Pressure shroud made of stainless steel 1.4404 (AISI 316L)
Type key
Example: | Helix V(F) 2202/2-1/16/E/X/KS/../1-400-50/-38FF265 |
Helix V(F) | Vertical high-pressure multistage centrifugal pump in in-line design(F) = VdS certified pump version |
22 | Flow rate in m3/h |
02 | Number of impellers |
2 | Number of trimmed impellers (optionally) |
1 | Pump material |
1 = Pump housing 1.4301 (AISI 304) Hydraulics 1.4307 (AISI 304L) | |
2 = Pump housing 1.4409 (AISI 316L) Hydraulics 1.4404 (AISI 316L) | |
3 = Pump housing EN-GJL-250 (cataphoretic-coated) Hydraulics 1.4307 (AISI 304L) | |
4 = Monobloc pump housing EN-GJL-250 (cataphoretic-coated) Hydraulics 1.4307 (AISI 304L) [Only Helix VE 22.. and larger] | |
16 | Maximum operating pressure in bar |
16 = 16 bar (PN 16 flange) | |
25 = 25 bar (PN 25 flange) | |
30 = 30 bar (PN 40 flange) | |
E | Gasket type E = EPDM V = FKM |
X | “X-Care” special version |
K | Cartridge type mechanical seal |
S | The coupling guard is on a line with suction and discharge ports of the pump |
1 | 1 = 1~ (alternating current)None = 3~ (three-phase current) |
400 | Connection voltage in V |
50 | Frequency in Hz |
-38FF265 | Diameter motor shaft – lantern size (pump version without motor) |
.. | Optional |