Wilo-RexaBloc RE

Special features/product advantages

• High operational reliability due to shut bearing bracket design with oil-filled sealing chamber and additional leakage chamber.
• Optionally with two mechanical seals for increased operational reliability.
• Equipped with IE3 motors as standard. Optionally available with IE4 premium motors.
• "Back pull out" design for easy maintenance. This means the motor and the impeller can be removed without needing to remove the hydraulics from the piping.

Design type

Sewage pump in block 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

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

Type key

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
• Static gaskets: NBR
• Sealing on pump side: SiC/SiC
• Sealing on motor side: NBR
• Motor housing: EN-GJL-250

Description/construction

Sewage pump in block 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.