Wilo-Rexa BLOC
Economical sewage transport in dry well installation
Economical sewage transport in dry well installation
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 overflow-proof sewage transport even in continuous operation. The standard-equipped IE3 standard motors and high overall efficiency keep energy costs low. Thanks to the back pull-out design, maintenance and servicing work is simplified and operating costs are minimised.
(*based on IEC 60034-30-1)
Recommended services
Your advantages
- High operational reliability thanks to closed bearing brackets with oil-filled sealing chamber, additional leakage chamber and two mechanical seals
- Low energy costs due to high overall efficiency
- Long service life when pumping abrasive and corrosive fluids thanks to various Ceram coatings
- Low operating costs thanks to a service-friendly and time-saving construction with back pull-out design
- Offers high flexibility for local space availability thanks to horizontal or vertical installation
Product features of the Wilo-Rexa BLOC in horizontal design
- Flange connection in accordance with DIN and ANSI
- Drainage screw
- Efficient, low-clogging single-channel or vortex impeller
- Ceram coating optionally available
- IE3 standard motor, IE4 motor optionally available (based on IEC 60034-30-1)
- Closed bearing bracket design
- Easy maintenance thanks to the back pull-out design
Product features of the Wilo-Rexa BLOC in horizontal design
- Flange connection in accordance with DIN and ANSI
- Drainage screw
- Efficient, low-clogging single-channel or vortex impeller
- Ceram coating optionally available
- IE3 standard motor, IE4 motor optionally available (based on IEC 60034-30-1)
- Closed bearing bracket design
- Easy maintenance thanks to the back pull-out design
Design
Sewage pump in monobloc design with standard motor for stationary dry well installation.
Application
Pumping of
- Untreated sewage
- Sewage containing faeces in accordance with EN 12050-1
- Wastewater
Equipment/function
- Optional external pencil electrode for the sealing chamber monitoring
Typekey
Example: | Wilo-RexaBloc RE 08.52W-260DAH132M4 |
RexaBloc | Sewage pump as a monobloc unit with fitted standard motor |
RE | Series |
08 | Nominal diameter of pressure connection, DN 80 |
52 | Performance index |
W | Vortex impeller |
260 | Impeller diameter |
D | Version flange hole:D = DINA = ANSI |
A | Standard material version |
H | Installation type: H = horizontalV = 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: 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
- Static gaskets: NBR
- Sealing on pump side: SiC/SiC
- Sealing on motor side: NBR
- Motor housing: EN-GJL-250
Construction
Sewage pump in monobloc design with fitted standard motor for the horizontal dry well 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 seal via a bidirectional mechanical seal, motor-side seal as a rotary shaft seal. The sealing chamber is filled with medical white oil, the leakage chamber is shut up to the motor. Optionally, the sealing chamber can be monitored with an external pencil electrode.
Motor
IEC standard motor in B5 design as three-phase motor with motor efficiency class IE3.
Scope of delivery
- Monobloc unit with fitted standard motor in three-phase version, without connection cable
- Angle bracket on the pressure connection for fastening lifting equipment
- Installation and operating instructions
Installation and operating instructions
Wilo-Rexa BLOC/RexaBloc RE
| Article Number | 6078738 |
| Edition | 2022-10 |
| Page format | 209.9 x 297.0 mm |
| Number of pages | 112 |
PDF (12 MB)General overview
General Overview 2022 - International version
| Edition | 2022 |
| Page format | 209.9 x 297.0 mm |
| Number of pages | 78 |
PDF (38 MB)Certification booklet
Wilo-RexaBloc RE, Wilo-Rexa BLOC
| Article Number | 6074551 |
| Edition | 2022-08 |
| Page format | 209.9 x 297.0 mm |
| Number of pages | 20 |
PDF (10 MB)Brochure
Economical sewage transport in dry well installation
| Page format | 209.9 x 297.0 mm |
| Number of pages | 4 |
PDF (512 KB)Certificate REACH
REACH Regulation
| Edition | 2021-05 |
| Page format | 209.9 x 297.0 mm |
| Number of pages | 4 |
PDF (212 KB)