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 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)
Recommended services
Your 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
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 fitted standard motor for the stationary dry well 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:
|
06 | Nominal diameter of discharge port |
34 | Performance indicator |
143 | Impeller diameter |
D | Version flange hole:
|
A | Standard material version |
H | Installation type:
|
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:
|
260 | Impeller diameter |
D | Version flange hole:
|
A | Standard material version |
H | Installation type:
|
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 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 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.
Scope of delivery
- Monobloc unit for horizontal installation with fitted standard motor in three-phase current version, without connection cable
- Angle bracket on the discharge port for fastening lifting equipment
- Installation and operating instructions
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
Accessories
- External pencil electrode for monitoring the sealing chamber
- Switchgears and relays
- Fixation sets with anchor bolts
Installation and operating instructions
Wilo-Rexa BLOC
| Article Number | 6078738 |
| Edition | 2022-10 |
| Number of pages | 32 |
PDF (8 MB)Certification booklet
Wilo-RexaBloc RE, Wilo-Rexa BLOC
| Article Number | 6074551 |
| Edition | 2022-08 |
| Number of pages | 20 |
PDF (10 MB)Brochure
Economical sewage transport in dry well installation
| Number of pages | 4 |
PDF (512 KB)