Wilo-Rexa PRO

The fully submersible sewage pump is designed for stationary and portable wet installation as well as for stationary dry installation. It can be used in continuous operation or intermittent periodic duty.

For pumping in commercial areas of:

• Sewage containing faeces
• Wastewater (with a small proportion of sand and gravel)
• Sludge with a maximum dry matter content of 8% (depending on the hydraulics selected)

• Certified explosion approval in accordance with ATEX
• Winding temperature monitoring with bimetallic sensor
• Leakage detection for the motor compartment (P 13 motor only)
• Connection cable with bare cable ends
• Single-phase version with capacitor switchgear

• Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
• Submerged operating mode: S1
• Non-immersed operating mode (P 13 motor only):
  • Short-time duty: S2-30 min
  • Intermittent periodic duty: S3 25%
• IP rating: IP68
• Insulation class: F
• Fluid temperature: 3 to 40 °C (37 to 104 °F)
• Fluid temperature, max. 60 °C (140 °F) for 3 min
• Max. immersion depth: 20 m (66 ft)

• Motor housing: EN-GJL-250 (ASTM A48 Class 35/40B)
• Hydraulics housing: EN-GJL-250 (ASTM A48 Class 35/40B)
• Impeller: EN-GJL-250 (ASTM A48 Class 35/40B)
• Static seals: NBR (nitrile)
• Seal on the pump side: SiC/SiC
• Seal on the motor side: C/MgSiO4
• Shaft end: Stainless steel 1.4021 (AISI 420)

Single-phase version

The sewage pump is equipped with a vortex impeller or a half-open single-channel impeller. The pump has a horizontal discharge port with a flange connection. The hydraulics housing and the impeller are made of cast iron. The surface-cooled single-phase motor has winding temperature monitoring and an internal moisture probe for leakage detection. The oil-filled sealing chamber has two mechanical seals. The motor housing is also made of grey cast iron. The pump is supplied with a detachable connection cable that has a capacitor box for the starting and operating capacitors as well as bare cable ends. The pump is Ex-certified as standard.

Three-phase version

The sewage pump is equipped with a vortex impeller or a half-open single-channel impeller. The pump has a horizontal discharge port with a flange connection. The hydraulics housing and the impeller are made of cast iron. The surface-cooled three-phase motor has winding temperature monitoring and an internal moisture probe for leakage detection. The oil-filled sealing chamber has two mechanical seals. The motor housing is also made of grey cast iron. The pump is supplied with a detachable connection cable with bare cable ends. The pump is Ex-certified as standard.

• Pump
• Installation and operating instructions

• IE3 motors
• Thermal winding monitor with PTC sensor
• Motor winding in insulation class "H"
• Static seals in FKM (FPM)
• Ceram C0 coating for housing and impeller to protect against corrosion
• Special voltages

• Suspension unit for wet installation
• Pump support foot for portable installation
• Level control devices
• External pencil electrode for leakage detection in the sealing chamber
• Fixation sets with bonded anchor
• Installation accessories and chains
• Switchgear, relays and plugs

• Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
• Submerged operating mode: S1
• Non-immersed operating mode (P 13 motor only):
  • Short-time duty: S2-30 min
  • Intermittent periodic duty: S3 25%
• IP rating: IP68
• Insulation class: F
• Fluid temperature: 3 to 40 °C (37 to 104 °F)
• Fluid temperature, max. 60 °C (140 °F) for 3 min
• Max. immersion depth: 20 m (66 ft)

• Motor housing: EN-GJL-250 (ASTM A48 Class 35/40B)
• Hydraulics housing: EN-GJL-250 (ASTM A48 Class 35/40B)
• Impeller: EN-GJL-250 (ASTM A48 Class 35/40B)
• Static seals: NBR (nitrile)
• Seal on the pump side: SiC/SiC
• Seal on the motor side: C/MgSiO4
• Shaft end: Stainless steel 1.4021 (AISI 420)

Single-phase version

The sewage pump is equipped with a vortex impeller or a half-open single-channel impeller. The pump has a horizontal discharge port with a flange connection. The hydraulics housing and the impeller are made of cast iron. The surface-cooled single-phase motor has winding temperature monitoring and an internal moisture probe for leakage detection. The oil-filled sealing chamber has two mechanical seals. The motor housing is also made of grey cast iron. The pump is supplied with a detachable connection cable that has a capacitor box for the starting and operating capacitors as well as bare cable ends. The pump is Ex-certified as standard.

Three-phase version

The sewage pump is equipped with a vortex impeller or a half-open single-channel impeller. The pump has a horizontal discharge port with a flange connection. The hydraulics housing and the impeller are made of cast iron. The surface-cooled three-phase motor has winding temperature monitoring and an internal moisture probe for leakage detection. The oil-filled sealing chamber has two mechanical seals. The motor housing is also made of grey cast iron. The pump is supplied with a detachable connection cable with bare cable ends. The pump is Ex-certified as standard.

• Pump
• Installation and operating instructions

• IE3 motors
• Thermal winding monitor with PTC sensor
• Motor winding in insulation class "H"
• Static seals in FKM (FPM)
• Ceram C0 coating for housing and impeller to protect against corrosion
• Special voltages

• Suspension unit for wet installation
• Pump support foot for portable installation
• Level control devices
• External pencil electrode for leakage detection in the sealing chamber
• Fixation sets with bonded anchor
• Installation accessories and chains
• Switchgear, relays and plugs