1 replacement option found

Existing pump - Multistage

Brand Flygt, ITT, Lowara, Xylem
Product name SV816F PN25
Overall length 280 mm
Mains connection 3x400 V
Pipe Connection DN 40 PN25
Nominal power P2 7,5 kW
Pump height 1286 mm
Distance floor - center 80 mm

Replacement pump Exchange sheet

Product name Helix V 1021-1/25/E/KS/400-50
Item no. 4150569
MEI ≥ 0,7
IE 3
Overall length 277 mm
Mains connection 3x400 V
Pipe Connection DN 40 PN25
Rated Current 13,7 A
Nominal power P2 7,5 kW
Pump height 1657 mm
Distance floor - center 80 mm
Fluid temperature range -30 - +120 °C

Comment

Fits without any modification of piping.
Check duty point, Helix V 1019 may also be suitable.

Product information
Helix V 1021-1/25/E/KS/400-50

Helix V 1021-1/25/E/KS/400-50
Item no. : 4150569

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.
COUNTER-FLANGE-X2-DN40-PN25/40-316L-PW
Item no.: 4016167
Mating flanges:
  • Made of stainless acid resistant steel 1.4404.
  • Threaded on tube side.
  • Comes in pairs.
Bypass kit Helix 2-16
Item no.: 4146788
Bypass batch:
Bypass kit for continuous ventilation of Helix pumps in series 2/ 4 / 6 / 10 / 16.
  • Comes with pressure gauge.
  • Suitable to use for all types of self and normal suction systems, e.g. irrigation, cooling towers etc.
CONNECTION -VB.WMS-CO-1MVI/MVIS/HELIX-6"
Item no.: 2504386

Connection kit for connection of a low-water cut-out switchgear to single-pump pressure boosting systems CO-1 without speed control.
ASSEMBLY WMS. DE-EB. +VP
Item no.: 2521150

Pressure switch as low-water signal transmitter for direct connection to the suction-side pipe provided by the customer.
Connection to the joint tubing Rp ¼' threaded bushing.
The pressure switch locks at 1.0 bar and enables at 1.3 bar (factory works setting in accordance with DIN 1988).
The factory settings cannot be modified.