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
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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