Wilo-Helix V

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

• Water supply and pressure boosting
• Industrial circulation systems
• Process water
• Closed cooling circuits
• Fire-fighting systems
• Washing systems
• Irrigation

• Corrosion-resistant impellers, guide vanes and stage housings

• 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:
  • 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): -30 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
• Protection class: IP 55
• Max. ambient temperature: +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 or Triclamp connection on request)
  • Helix V 22 – 52: PN 16/PN 25/PN 40 with round flanges according to ISO 2531 and ISO 7005

Helix V 2, 4, 6, 10, 16:

Pump material combination 1

• 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)

Pump material combination 2

• 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:

Pump material combination 1

• 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)

Pump material combination 2

• 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)

• The pumps can be adapted to different applications with special mechanical seals (for mixed water & glycol, pure water, aggressive liquids, ...).
• The Helix series is also available in silicone-free or ATEX versions.
• The motors can also be customised, e.g. with an overpowered motor, IE4 efficiency, PTC, reinforced external corrosion protection, canopy, anti-condensation heating, specific RAL colour, ...

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

• 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:
  • 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): -30 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
• Protection class: IP 55
• Max. ambient temperature: +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 or Triclamp connection on request)
  • Helix V 22 – 52: PN 16/PN 25/PN 40 with round flanges according to ISO 2531 and ISO 7005

Helix V 2, 4, 6, 10, 16:

Pump material combination 1

• 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)

Pump material combination 2

• 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:

Pump material combination 1

• 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)

Pump material combination 2

• 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)

• The pumps can be adapted to different applications with special mechanical seals (for mixed water & glycol, pure water, aggressive liquids, ...).
• The Helix series is also available in silicone-free or ATEX versions.
• The motors can also be customised, e.g. with an overpowered motor, IE4 efficiency, PTC, reinforced external corrosion protection, canopy, anti-condensation heating, specific RAL colour, ...

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