Wilo-Rexa PRO

This fully submersible sewage pump is designed for stationary, portable, and dry installations in continuous or intermittent operation.

For pumping in commercial areas of:

• Sewage containing feces
• Wastewater (with small quantities of sand and gravel)
• Sludges up to maximum 8 % dry matter (depending on the selected hydraulics)

• Ex approval according to FM
• Winding temperature with bimetallic sensor
• Leakage detection for motor compartment (only P 13 motor)
• Connection cable with bare cable ends

• Mains connection: 1~ 230 V, 60 Hz, 3~230 V, 60 Hz or 3~460 V, 60 Hz
• Submerged operating mode: continuous duty (S1)
• Non-immersed operating mode (only for P 13 motor):
  • Short-time duty: S2, 30 min
  • Intermittent periodic duty: S3, 25% (10-minute cycles)
• IP rating: permanently submerged (IP68)
• Insulation class: F
• Fluid temperature: 37 to 104 °F (3 to 40 °C)
• Fluid temperature, max. 140 °F (60 °C) for 3 min
• Max. immersion depth: 66 ft (20 m)

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

Single-phase version

The sewage pump features either a vortex impeller or semi-open, single-channel impeller. The pump has a horizontal discharge port with a flange connection. The hydraulic housing and impeller are made of gray cast iron. The surface-cooled, single-phase motor includes 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 gray cast iron. The pump is supplied with a detachable connection cable with bare cable ends. The pump has an Ex rating as standard.

Please note that the starting and operating capacitors must be provided on site.

Three-phase version

The sewage pump features either a vortex impeller or semi-open, single-channel impeller. The pump has a horizontal discharge port with a flange connection. The hydraulic housing and impeller are made of gray cast iron. The surface-cooled, three-phase motor includes 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 gray cast iron. The pump is supplied with a detachable connection cable with bare cable ends. The pump has an Ex rating as standard.

• Pump
• Installation and operating instructions

• Premium class motors (IE3)
• Motor winding monitoring with PTC sensor
• Motor windings in insulation class "H“
• External moisture probe for leakage detection in the sealing chamber
• Static gaskets in FPM (FKM)
• Ceram coating C0 for housing and impeller against corrosion
• Special voltages

• Capacitor kit for single-phase pumps consists of an operating capacitor and a start capacitor.
• Guide rail system for wet installation
• Portable base for portable installation
• Level control devices
• Fixation sets with anchor bolts
• Fixation accessories and chains
• Switchgear, relays and plugs

• Mains connection: 1~ 230 V, 60 Hz, 3~230 V, 60 Hz or 3~460 V, 60 Hz
• Submerged operating mode: continuous duty (S1)
• Non-immersed operating mode (only for P 13 motor):
  • Short-time duty: S2, 30 min
  • Intermittent periodic duty: S3, 25% (10-minute cycles)
• IP rating: permanently submerged (IP68)
• Insulation class: F
• Fluid temperature: 37 to 104 °F (3 to 40 °C)
• Fluid temperature, max. 140 °F (60 °C) for 3 min
• Max. immersion depth: 66 ft (20 m)

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

Single-phase version

The sewage pump features either a vortex impeller or semi-open, single-channel impeller. The pump has a horizontal discharge port with a flange connection. The hydraulic housing and impeller are made of gray cast iron. The surface-cooled, single-phase motor includes 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 gray cast iron. The pump is supplied with a detachable connection cable with bare cable ends. The pump has an Ex rating as standard.

Please note that the starting and operating capacitors must be provided on site.

Three-phase version

The sewage pump features either a vortex impeller or semi-open, single-channel impeller. The pump has a horizontal discharge port with a flange connection. The hydraulic housing and impeller are made of gray cast iron. The surface-cooled, three-phase motor includes 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 gray cast iron. The pump is supplied with a detachable connection cable with bare cable ends. The pump has an Ex rating as standard.

• Pump
• Installation and operating instructions

• Premium class motors (IE3)
• Motor winding monitoring with PTC sensor
• Motor windings in insulation class "H“
• External moisture probe for leakage detection in the sealing chamber
• Static gaskets in FPM (FKM)
• Ceram coating C0 for housing and impeller against corrosion
• Special voltages

• Capacitor kit for single-phase pumps consists of an operating capacitor and a start capacitor.
• Guide rail system for wet installation
• Portable base for portable installation
• Level control devices
• Fixation sets with anchor bolts
• Fixation accessories and chains
• Switchgear, relays and plugs