Wilo-Rexa BLOC

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Wilo-Rexa BLOC

Economical sewage transport in dry well installation.

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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)
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

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

Why Wilo Pumps…

Self-Priming

Convenient

Highly-Efficient

Noise-Free

Diversity

Optimised Design

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Wilo-Rexa BLOC

Equipment/function

Typekey

Materials

Options

Click Below to Download:

Why Wilo Pumps…

What Trebles Customers Think

Job delivered and commissioned at the height of the pandemic with no changes to the excellent service we always receive.

The team at Trebles were great. I really can’t praise them enough.

Not many providers would be able to fully breakdown & rebuild a booster on site

We relied on Trebles expertise to ensure the right products were sourced for our project.

Top workmanship and a professional attitude from a supportive team

Excellent customer service again! You genuinely make my life so much easier

Excellent service and a company I would recommend to anyone in future

Engineers were very professional with an excellent knowledge of their trade

We’re writing to express our sincere thanks to all who help ensure our hospitals are able to run smoothly

Job delivered and commissioned at the height of the pandemic with no changes to the excellent service we always receive.

The team at Trebles were great. I really can’t praise them enough.

Not many providers would be able to fully breakdown & rebuild a booster on site

We relied on Trebles expertise to ensure the right products were sourced for our project.

Top workmanship and a professional attitude from a supportive team

Excellent customer service again! You genuinely make my life so much easier

Excellent service and a company I would recommend to anyone in future

Engineers were very professional with an excellent knowledge of their trade

We’re writing to express our sincere thanks to all who help ensure our hospitals are able to run smoothly

Job delivered and commissioned at the height of the pandemic with no changes to the excellent service we always receive.

The team at Trebles were great. I really can’t praise them enough.

Not many providers would be able to fully breakdown & rebuild a booster on site

Wilo-Rexa BLOC

Equipment/function

Typekey

Materials

Options

Why Wilo Pumps…

What Trebles Customers Think

We relied on Trebles expertise to ensure the right products were sourced for our project.

Top workmanship and a professional attitude from a supportive team

Excellent customer service again! You genuinely make my life so much easier

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