Wilo-Zeox FIRST V
Non-self-priming, highly efficient high-pressure multistage centrifugal pump.
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Description
Non-self-priming, highly efficient high-pressure multistage centrifugal pump
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Advantages
- Efficiency-optimised, laser-welded, optimised 2D/3D hydraulics
- Corrosion-resistant impellers, guide vanes and stage housings
- Flow and degassing-optimised hydraulic parts
- Reinforced pump housing, flow and NPSH optimised
- Space-saving and easy maintenance thanks to compact design
- Particularly sturdy coupling guard
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Technical Features
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 =Helix FIRST V 2.. to 16..: 16 bar: Oval flange PN 16Helix FIRST V 22.. to 52..: 16 bar: DIN round flange PN 16 25 = Helix FIRST V 2.. to 16.. -5/25/E/S/..: 16 bar:DIN round flange PN 25Helix FIRST V 2.. to 16.. -5/25/E/KS/..: 25 bar:DIN round flange PN 25Helix FIRST V 22.. to 52..: 25 bar:DIN round flange PN 25 30 = Helix FIRST V 2.. to 52..: 30 bar:DIN round flange PN 40 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
- Protection class: IP 55
- Max. ambient temperature: -15 °C – +40 °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 FIRSTV 22 – 52: 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).
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