Wilo-Helix V
High efficiency non-self priming vertical multistage pumps.
Your advantages
Efficiency-optimised, laser-welded 2D/3D hydraulics, flow and degassing optimised
Corrosion-resistant impellers, guide vanes and stage housings
Flow and NPSH-optimised pump housing
Maintenance-friendly design with particularly robust coupling guard
Drinking water approval for pumps with parts that come in contact with the fluid made of stainless steel (EPDM version)
Construction
Non-self-priming, high-efficiency multistage high-pressure centrifugal pump in vertical design with in-line connections
Application
Water supply 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 V high-pressure multistage centrifugal pump
Installation and operating instructions
Helix V 2 – 16 (version PN16 with oval flanges): counter flanges made of stainless steel with the corresponding screws, nuts and gaskets
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)
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).
The Helix series is also available with an integrated frequency converter.