Highly efficient high-pressure multistage centrifugal pump in vertical design with in-line connections.
The non self-priming high-pressure multistage centrifugal pump has a compact overall design and is particularly efficient and easy to maintain. The pump shaft and the motor shaft of the IEC standard motor are connected by means of a clamp coupling.
A separate lantern roller bearing ensures optimum admission of axial thrusts. Intermediate bearings in the hydraulics and corrosion-resistant shaft due to stainless steel sleeve ensure a long service life. Special, permanently attached lifting eyes enable easy pump installation.
The pump is suitable for water supply and pressure boosting, industrial recirculation systems, process water and cooling water circuits. It can also be used in fire extinguishing systems, washing systems as well as for irrigation.
Special features/product advantages
– Efficiency-optimised, laser-welded 2D/3D hydraulics, flow and degassing optimised
– Corrosion-resistant impellers, guide vane apparatuses and stage housings
– Flow and NPSH-optimised pump housing
– Maintenance-friendly design with particularly robust coupling guard
– Drinking water approval for all parts that come into contact with the fluid (EPDM version)
Scope of delivery
– Wilo-Helix V high-pressure multistage centrifugal pump
– Installation and operating instructions
– Counter flanges of cast iron with the corresponding screws, nuts and gaskets for PN16 pump version with oval flanges
Design notes
– Motor protection for 3-phase motor is to be provided on request or onsite
– Single-phase AC motor equipped with built-in thermal motor protection and capacitor
– In its standard position, the terminal box is aligned with the suction flange, but this can be changed if necessary
– The Wilo-Helix V is equipped with a standard mechanical seal
– Oval and round counter flanges are available as accessories in stainless steel or cast iron
– Bypass sets are available as accessories
Operating Data
Fluid media: Water 100 %
Fluid temperature: 20.00 °C
Fluid concentration: 100.00 %
Requested flow:
Requested head:
Product data
Min. fluid temperature: -30 °C
Max. fluid temperature: 120 °C
Max. ambient temperature: 50 °C
Maximum operating pressure: 16 bar
Maximum inlet pressure: 1,000 kPa
Minimum efficiency index (MEI):
Motor data
Mains connection: 3~400V/60 Hz
Voltage tolerance: +-10 %
Rated power: 0.75 kW
Motor efficiency class:
Rated current: 1.7 A
Rated speed: 2,890 1/min
Power factor: 0.81
Motor efficiency 50%: 76.0 %
Motor efficiency 75%: 79.7 %
Motor efficiency 100%: 80.7 %
Insulation class:
Protection class: IP55
Materials
Pump housing: 1.4301
Impeller: 1.4307
Shaft: 1.4301
Shaft seal: BQ7EGG
Gasket material: EPDM
Stage chamber material:
Installation dimensions
Pipe connection on the suction side: G 1, PN 16
Pipe connection on the discharge side: G 1, PN 16
Ordering information
Brand: Wilo
Product description: Helix V 403-1/16/E/S/460-60
Net weight, approx.: 24 kg
Article number: 4201368
