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

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

Type key

Example:Wilo-RexaNorm RE 25.74E-480DAH315S6
RexaNormSewage pump with standard motor, connected via coupling, fully mounted on baseplate
RESeries
25Nominal diameter of pressure connection, DN 80
74Performance index
EVortex impeller
480Impeller diameter
DVersion flange hole:

D = DIN

A = ANSI

AStandard material version
HInstallation type:
H = horizontal
V = vertical
315SConstruction size standard motor
4Number 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

Equipment/function

  • Winding temperature monitoring with PTC sensor (Pt100 sensor optionally available)
  • Optional external pencil electrode for the sealing chamber monitoring

Description/design

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.

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

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

Accessories

  • External pencil electrode for monitoring the sealing chamber
  • Switchgear, relays and plugs
  • Fixation sets with anchor bolts

Duty chart

Pump curves

Product

Design

Submersible

-

Single-channel impeller

Vortex impeller

-

Multi-channel impeller

-

Open multi-channel impeller

-

Macerator

-

Turbulator

-

Sealing chamber

Leakage chamber

Sealing by mechanical seal on motor side

-

Sealing by rotary shaft seal on motor side

Sealing by mechanical seal on fluid side

AC motor

-

Three-phase motor

Direct activation

Star-delta activation

FC operation

º

dry motor

Motor with oil cooling

-

Dry motor with closed-circuit cooling

-

Application

Wet well installation, stationary

-

Wet well installation, portable

-

Dry well installation, stationary

Dry well installation, portable

-

Equipment/function

Motor leakage monitoring

-

Sealing chamber monitoring

º

Leakage chamber monitoring

-

Motor temperature monitoring, bimetal

-

PTC motor temperature monitoring

Explosion protection

-

Float switch

-

Capacitor box for 1~230 V

-

Ready-to-plug

-

Materials

Pump housing

Cast iron

Impeller

Cast iron

Motor housing

Cast iron

Downloads

Certification Booklet Wilo-RexaNorm RE

Article Number 6074550
Edition 1608
Version number 02
Page format A4
Number of pages 8

PDF (334 kB)

Download

Drainage and Sewage

Page format A4
Number of pages 24

PDF (8 MB)

Download

General overview

Edition 2017
Page format A4
Number of pages 72

PDF (46 MB)

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PDF: Wilo-RexaNorm RE

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