Design
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
- Cooling water circulation systems
- Fire extinguishing systems
- Washing systems
- Irrigation
Versions with stainless steel 1.44xx for aggressive media
Type key
| Example: | Helix V 2202/2-3/16/E/X/K/../400-50 | |
| Helix V | Vertical high-pressure multistage centrifugal pump in in-line design | |
| 22 | Flow rate in m3/h | |
| 02 | Number of impellers | |
| 2 | Number of trimmed impellers (optionally) | |
| 3 | Pump material | |
| 1 = | Pump housing 1.4301 (AISI 304) Hydraulics 1.4307 (AISI 304L); [Only Helix V 16.. and smaller] | |
| 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); [Only Helix V 22.. and larger] | |
| 4 = | Monoblock pump housing EN-GJL-250 (cataphoretic-coated) Hydraulics 1.4307 (AISI 304L); [Only Helix V 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 | |
| .. | optional | |
| 400 | Connection voltage in V | |
| 50 | Frequency in Hz |
Special features/product advantages
- Efficiency-optimised, laser-welded 2D/3D hydraulics, flow and degassing optimised
- Corrosion-resistant impellers, diffusors and stage housings
- Flow and NPSH-optimised pump housing
- Maintenance-friendly design with particularly robust coupling protection
- Drinking water approval for all parts that come into contact with the fluid (EPDM version)
Technical data
- Minimum Efficiency Index (MEI) ≥ 0.7
- Electrical connection: 3~400 V (±10 %), 50 Hz
- Fluid temperature range:
- Helix V 2 – 16 (EPDM): -30 to 120 °C
- Helix V 2 – 16 (FKM): -15 to 90 °C
- Helix V22 – 52 (EPDM): -20 to 120 °C
- Helix V22 – 52 for aggressive media (FKM): -15 to 90 °C (-30 °C with EPDM seal on request)
- Max. operating pressure: 16/25/30 bar
- Protection class: IP 55
- Max. ambient temperature: +40°C (extended temperature ranges on request)
- Available versions:
- Helix V 2 – 16: PN 16 with oval flanges, PN 25 with round flanges in accordance with ISO 2531 and ISO 7005
- Helix V 22 – 52: PN 16 and PN 25 with round flanges in accordance with ISO 2531 and ISO 7005
Equipment/function
- Corrosion-resistant impellers, diffusors and stage housings
Description/design Helix Pumps
- Pumps can be adapted to specific circumstances on request (e.g. motor protection, ATEX, extended ambient temperature range).
- The Helix series is also available with an integrated frequency converter.
Materials
Helix V 2, 4, 6, 10, 16:
Standard version
- Impellers, stage housings and diffusors made of stainless steel 1.4307
- Pump housing made of stainless steel 1.4301
- Baseplate and lantern EN-GJL-250 (cataphoretic coated)
- Shaft made of stainless steel 1.4301 or 1.4462 (depending on version)
- Sleeve under the mechanical seal 1.4404
- O-ring of EPDM (FKM gasket on request)
- Jacket pipe of stainless steel 1.4301
For aggressive media
- Impellers, stage housings and diffusors of stainless steel 1.4404
- Pump housing of stainless steel 1.4404
- Shaft of stainless steel 1.4404 or 1.4462 (depending on version)
- Sleeve under the mechanical seal 1.4404
- O-ring of EPDM (FKM gasket on request)
- Jacket pipe of stainless steel 1.4404
Helix V 22, 36, 52:
Standard version
- Stage housings, impellers, diffusors of stainless steel 1.4307
- Pump housing of cataphoretic-coated grey cast iron EN-GJL 250, loose flanges of EN-GJS 400 for Helix V 36-52.
- Shaft of stainless steel 1.4057
- Sleeve under the mechanical seal 1.4404
- O-ring of EPDM (FKM gasket on request)
- Jacket pipe of stainless steel 1.4301
For aggressive media
- Stage housings, impellers, diffusors of stainless steel 1.4404 with passivation for highest possible resistance to corrosion
- Pump housing: all parts which come in contact with the media are made of cast stainless steel 1.4409 ; loose flanges of cataphoretic-coated grey cast iron EN-GJL 250 for Helix V 22 / EN-GJS 400 for Helix V 36-52.
- Baseplate of stainless steel 1.4301
- Shaft of stainless steel 1.4404 or 1.4462 (depending on version)
- Sleeve under the mechanical seal 1.4404
- O-ring of FKM (EPDM gasket on request)
- Pressure shroud of stainless steel 1.4404
Scope of delivery
- Helix V high-pressure multistage centrifugal pump
- Helix V 2 – 16: Oval counter flanges with corresponding screws and O-rings (PN16 variant) or bolts and gaskets if a counter flange is used (PN25 variant with round flanges)
- Helix V 22 – 52: Bolts and gaskets if a counter flange is used (PN16 and PN25 with round flanges)
- Installation and operating instructions
- Integrated funnel to make it easier to fill the pump (Helix V 2 – 16 only)
General notes – ErP (ecological design-) directive
- The benchmark for most efficient water pumps is MEI ≥ 0.70
- The efficiency of a pump with a trimmed impeller is usually lower than that of a pump with the full impeller diameter. The trimming of the impeller will adapt the pump to a fixed duty point, leading to reduced energy consumption. The minimum efficiency index (MEI) is based on the full impeller diameter.
- The operation of this water pump with variable duty points may be more efficient and economic when controlled, for example, by the use of a variable speed drive that matches the pump duty to the system.
- Information on benchmark efficiency is available at www.europump.org/efficiencycharts