Wilo-RexaNorm RE

Special features/product advantages

  • Easy impeller replacement due to “back pull-out” design and spacer coupling as standard. This makes it possible to uninstall the impeller without dismantling the hydraulics from the pipeline and the motor from the baseplate.
  • Shut "Back pull out" unit: Dismantling without draining the oil in the sealing chamber.

Series description

Design type

Sewage pump with standard motor, connected via coupling, fully mounted on baseplate, for stationary dry well installation

Application

Pumping of

  • Untreated sewage
  • Sewage containing faeces
  • Process water
  • Wastewater

Equipment/function

  • Winding temperature monitoring with PTC or PT100 sensor (depending from motor type)
  • Optional external pencil electrode for the sealing chamber monitoring

Scope of delivery

  • Sewage pump and standard motor mounted on baseplate installed and connected via a coupling
  • Standard motor in three-phase version without connection cable
  • Installation and operating instructions

Type key

Example:

Wilo-RexaNorm RE 25.74E-480DAH315S6

RexaNorm

Sewage pump with standard motor, connected via coupling, fully mounted on baseplate

RE

Series

25

Nominal diameter of pressure connection e.g. DN 250

74

Performance indicator

E

Impeller type:

E = Single-channel

Z = Two-channel

D = Three-channel

480

Impeller diameter

D

Flange version:

D = DIN

A = ANSI

A

Standard material version

H

Installation type:

H = Horizontal

V = Vertical

315S

Construction size standard motor

6

Number of poles (nominal speed of the hydraulics)

Technical data

  • Mains connection: 3~400 V, 50 Hz
  • Operating mode: S1
  • Protection class: IP 55
  • Insulation class: F
  • Fluid temperature: 3…70 °C
  • Ambient temperature: 3 to 40 °C
  • Motor efficiency class: IE3

Materials

  • Hydraulic housing: EN-GJL 250
  • Impeller: EN-GJL 250
  • Hydraulics shaft: Stainless steel 1.4021
  • Bearing bracket: EN-GJL-250
  • Coupling: Stainless steel
  • Static gaskets: NBR
  • Sealing on pump side: SiC/SiC
  • Sealing on motor side: NBR
  • Motor housing: EN-GJL-250
  • Baseplate: steel

Description/construction

Sewage pump with fitted standard motor fully mounted on baseplate for horizontal dry well installation in continuous duty.

Hydraulics

Hydraulic system with axial suction ports, radial discharge ports and bearing brackets as a single unit. The connections are configured as flange connections.

Seal

Bearing bracket with sealing and leakage chamber for admission of fluid ingress via the seal. Fluid-side seal via a bidirectional mechanical seal, coupling-side seal as a rotary shaft seal. The sealing chamber is filled with medical white oil, the leakage chamber is shut up to the coupling. Optionally, the sealing chamber can be monitored with an external pencil electrode.

Motor

IEC standard motor version B3 permanently connected with the hydraulics via spacer coupling. Three-phase motor with thermal motor monitoring and motor efficiency class IE3.

Downloads

General overview 2018 International version

Article Number 2200591
Edition 2018
Version number 1
Page format 209.9 x 297.0 mm
Number of pages 72

PDF (11 MB)

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PDF: Wilo-RexaNorm RE

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