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, while 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

Design notes

• Motor protection is to be provided on request or onsite.
• 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 user-friendly mechanical seal in a cartridge design and standard gasket for easy maintenance
• The spacer coupling (from ≥ 7.5 kW) allows the mechanical seal to be replaced without removing the motor
• The flexible lantern design, which is available in two alignments, enables direct access to the mechanical seal.
• Pressure sensor connections on the pump housing allow simple monitoring and control of the pump operation (optional for the standard version and included in versions for aggressive media)
• For pump versions PN16, PN25 and Pmax = 30 bar, round counter flanges in cast iron or stainless steel, screws, nuts and gaskets are available as accessories.
• Bypass sets are available as accessories.

X-Care

Additional module with sensors for monitoring the pump. The supplied signals are transferred to the building automation system in order to permit specific control of the pump

• Integrated dry-running protection
• Integrated pump monitoring
• Direction of rotation
• Operating pressure
• Ambient temperature
• Elapsed time indicator
• Start/stop counter
• Interfaces
• IR
• CAN

Materials

• Impeller
  1.4404, X2CrNiMo17-12-2
• Pump housing
  1.4409, GX2CrNiMo19-11-2
• Gasket material
  FKM
• Shaft
  1.4404, X2CrNiMo17-12-2