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Description
Whether in intermediate pumping stations, collector pumping stations or wastewater treatment plants – sewage pumps of the Wilo-Rexa BLOC series with low-clogging impeller or single-channel impellers enable reliable and flood-proof sewage transport even in continuous operation. The standard-equipped IE3 standard motors and high overall efficiency keep energy costs low. Maintenance and servicing work is simplified and operating costs are minimised by the back pull-out design.
(*based on IEC 60034-30-1)
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Advantages
- High operational reliability owing to closed bearing brackets with oil-filled sealing chamber, additional leakage chamber and two mechanical seals
- Low energy costs due to high overall efficiency
- Various Ceram coatings provide a long service life when pumping abrasive and corrosive fluids
- A service-friendly and time-saving construction with back pull-out design keeps operating costs low
- A horizontal or vertical installation offers high flexibility for local space availability
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Technical Features
Design
Sewage pump in monobloc design with fitted standard motor for the stationary dry installation in continuous operation.
Equipment/function
- Hydraulics with gasket and leakage chamber
- Seal with two mechanical seals
- IEC standard motors with motor efficiency class IE3
Typekey
Example: Rexa BLOC-C06.34-143DAH132S2 Rexa Sewage pump BLOC Monobloc unit with attached standard motor C Type of impeller: - V = vortex impeller
- C = single-channel impeller
- M = multi-channel impeller
06 Nominal diameter of discharge port 34 Performance indicator 143 Impeller diameter D Version flange hole: - D = DIN
- A = ANSI
A Standard material version H Installation type: - H = horizontal
- V = vertical
132S Construction size standard motor 2 Number of poles (nominal speed of the hydraulics) Example: Wilo-RexaBloc RE 08.52W-260DAH132M4 RexaBloc Sewage pump as a monobloc unit with fitted standard motor RE Series 08 Nominal diameter of discharge port 52 Performance indicator W Type of impeller: - W = Vortex impeller
- D = Three-channel impeller
260 Impeller diameter D Version flange hole: - D = DIN
- A = ANSI
A Standard material version H Installation type: - H = horizontal
- V = vertical
132M Construction size standard motor 4 Number of poles (nominal speed of the hydraulics) Technical Data
- Mains connection: 3~400 V, 50 Hz
- Operating mode: S1
- Protection class: IP55
- Insulation class: F
- Fluid temperature: 3 … 70 °C
- Ambient temperature: 3 … 40 °C
- Motor efficiency class: IE3
Materials
- Hydraulics housing: EN-GJL 250
- Impeller: EN-GJL 250
- Hydraulics shaft: Stainless steel 1.4021
- Bearing bracket: EN-GJL-250
- Motor housing: EN-GJL-250
- Gaskets
- Static: NBR
- On pump side: SiC/SiC
- On the motor side: SiC/SiC
Construction
Sewage pump in monobloc design with fitted standard motor for the stationary dry installation in continuous operation.
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 and motor-side sealing via a bidirectional mechanical seal. The sealing chamber is filled with medical white oil, the leakage chamber is empty and shut up to the motor.
Motor
IEC standard motor in B5 design as three-phase motor with motor efficiency class IE3.
Accessories
- External pencil electrode for monitoring the sealing chamber
- Switchgears and relays
- Fixation sets with anchor bolts
Options
- IEC standard motor in different versions:
- Motor efficiency class IE4
- Ex-rated according to ATEX or FM
- Thermal motor monitoring using bimetallic or PTC sensors
- Version for vertical installation
- ‘Bare shaft’ version
- Downloads
