Rexa PRO
Submersible pump
- It is highly effective thanks to its efficiency-optimized single-channel impeller.
- Safe operation is ensured by its low-clogging vortex impeller.
- It is verified as safe with an ex-approval in accordance with FM standards.
- Long service life due to two mechanical seals
- Variable-frequency-drive (VFD) rated motor
- Longitudinally watertight cable entry
- Optional moisture probe for leakage detection in the sealing chamber
Recommended services
Design
This fully submersible sewage pump is designed for stationary, portable, and dry installations in continuous or intermittent operation.Liquid
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)
Equipment/function
- 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
Type key
Example: | Rexa PRO-V06-212A/21M017X646/O |
Rexa | Submersible sewage pump |
PRO | Series |
V | Impeller type:
|
06 | Nominal diameter of the discharge port (acc. to ANSI B16.1, Class 125):
|
21 | Performance indicator |
2 | Characteristic curve number |
A | Identifier for material and coating type |
2 | Number of poles |
1 | Motor efficiency class (derived from IEC 60034-30)
|
T | Mains connection version:
|
017 | Value/10 = rated power P2 in kW |
F | Ex approval in accordance with FM |
6 | Mains frequency: 60 Hz |
46 | Rated voltage code:
|
O | Connection cable with bare cable ends |
Technical data
- 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)
Materials
- 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)
Construction
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.
Scope of delivery
- Pump
- Installation and operating instructions
Options
- 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
Accessories
- 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