Wilo-Rexa FIT-S
Efficient submersible sewage pump in non-clog design with macerator for reliable pressure drainage in commercial properties
Efficient submersible sewage pump in non-clog design with macerator for reliable pressure drainage in commercial properties
The Wilo-Rexa FIT-S grinder pump ensures reliable pressure drainage in accordance with EN 12050-1 in commercial applications. The radial macerator with double shear effect reliably chops the solids. Clogging is prevented and safe operation is ensured. In addition, the overall costs are significantly minimised. Firstly, the optimised hydraulics provide a high degree of efficiency along with the maximum delivery head. Secondly, the smallest possible pipework can be connected. The high-quality stainless steel motor is light and easy to maintain. On the other hand, the motor is extremely corrosion-resistant, even when the motor is non-immersed. A high-quality seal with two mechanical seals ensures a long service life.
Recommended services
Your advantages
- Excellent anti-clogging reliability due to radial macerator with double shear effect
- Optimised hydraulics/macerator combination for a wide coverage of delivery head
- Low overall installation costs thanks to the use of smallest possible piping
- Designed for an easy selection covering the needs of various building types
- Long service life due to high-quality motor with two mechanical seals and optional sealing chamber monitoring
- High corrosion resistance, even with non-immersed motor, thanks to stainless-steel motor housing
Product features
- Radial macerator with double shear effect
- Motor made of corrosion-resistant stainless steel
- Motor seal with two mechanical seals
- Optional monitoring of the sealing chamber
- Version with float switch available for level-dependent control
Design
Fully submersible grinder pump for stationary and portable wet well installation in intermittent operation.
Liquid
For pumping in commercial areas of:
- Sewage containing faeces
- Wastewater (with small amounts of sand)
Sewage pumping according to (DIN) EN 12050
The pumps meet the requirements of EN 12050-1.
Equipment/function
- Radial macerator with double shear effect
- Thermal motor monitoring with bimetallic strip
- Single-phase AC motor with self-switching thermal motor monitoring
- Connection cable in different versions:
- Version “P”: with plug
- Version “A”: with float switch and plug
- Version “O”: bare cable ends
- Single-phase AC motor with separate capacitor switchgear
Typekey
Example: | Rexa FIT-S03-123A/21M015-523/P |
Rexa | Submersible sewage pump |
FIT | Series |
S | Macerator |
03 | Nominal diameter of the discharge connection: DN 32/40 |
123 | Hydraulics type |
A | Material version: Standard |
2 | Number of poles |
1 | IE class |
M | Mains connection version:
|
15 | Value/10 = rated power P in kW |
- | Not Ex-rated |
5 | Mains frequency: 5 = 50 Hz/6 = 60 Hz |
23 | Key for rated voltage |
P | Additional electrical equipment:
|
Technical data
- Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
- Submerged operating mode: S1
- Non-immersed operating mode: S2-15 min; S3 10%
- Protection class: IP68
- Insulation class: F
- Fluid temperature: 3 … 40 °C (37 … 104 °F)
- Fluid temperature, max. 60 °C (140 °F) for 3 min
Materials
- Pump housing: EN-GJL-250 (ASTM A48 Class 35/40B)
- Impeller: EN-GJL-250 (ASTM A48 Class 35/40B)
- Macerator: 1.4528/59 HRC (AISI 440B+Co)
- Motor housing: 1.4301 (AISI 304)
- Shaft: 1.4401 (AISI 316)
- Seal on the motor side: C/MgSiO
- Seal on the fluid side: SiC/SiC
- Seal, static: NBR (nitrile)
Construction
Rexa FIT-S ... /M ... /P
Sewage pump with radial macerator with double shear effect. Horizontal discharge port with flange and oval connection. Hydraulics housing and impeller made of grey cast iron; macerator made of hardened cutting steel. Surface-cooled 1~ motor with self-switching thermal motor monitoring. Oil-filled sealing chamber with two mechanical seals. Stainless steel motor housing. Detachable connection cable with capacitor box and plug (CEE 7/7).
Rexa FIT-S ... /M ... /A
Sewage pump with radial macerator with double shear effect. Horizontal discharge port with flange and oval connection. Hydraulics housing and impeller made of grey cast iron; macerator made of hardened cutting steel. Surface-cooled 1~ motor with self-switching thermal motor monitoring. Oil-filled sealing chamber with two mechanical seals. Stainless steel motor housing. Detachable connection cable with capacitor box, float switch and plug (CEE 7/7).
Rexa FIT-S ... /T ... /O
Sewage pump with radial macerator with double shear effect. Horizontal discharge port with flange and oval connection. Hydraulics housing and impeller made of grey cast iron; macerator made of hardened cutting steel. Surface-cooled 3~ motor with thermal motor monitoring. Oil-filled sealing chamber with two mechanical seals. Stainless steel motor housing. Detachable connection cable with bare cable ends.
Scope of delivery
- Pump
- Installation and operating instructions
Accessories
- Connection cable with fixed cable lengths:
- 1~ motor: up to max. 30 m (98 ft).
- 3~ motor: up to max. 50 m (164 ft).
- External pencil electrode for monitoring the sealing chamber
- Suspension unit for wet well installation
- Pump support foot for portable installation
- Level control devices
- Fixation sets with anchor bolts
- Fixation accessories and chains
- Switchgear, relays and plugs
Installation and operating instructions
Wilo-Rexa FIT-S
| Article Number | 6092602 |
| Edition | 2024-04 |
| Number of pages | 24 |
PDF (5 MB)Certification booklet
Wilo-Rexa FIT
| Article Number | 6069823 |
| Edition | 2021-03 |
| Number of pages | 12 |
PDF (3 MB)Brochure
Wilo grinder pumps - Chopping solids for more operational reliability.
| Number of pages | 12 |
PDF (3 MB)| Product description | Operating mode (non-immersed) | Discharge port | Rated power P2 | Connection cable length L | Explosion protection ATEX | Article number | |
|---|---|---|---|---|---|---|---|
Rexa FIT-S03-112A/21M011-523/A | S2-15 min | DN 32/40 | 1.1 kW | 10 m | no | 6094356 | |
Rexa FIT-S03-112A/21M011-523/P | S2-15 min | DN 32/40 | 1.1 kW | 10 m | no | 6093111 | |
Rexa FIT-S03-112A/21T011-540/O | S2-15 min | DN 32/40 | 1.1 kW | 10 m | no | 6093112 | |
Rexa FIT-S03-123A/21M015-523/A | S2-15 min | DN 32/40 | 1.5 kW | 10 m | no | 6094355 | |
Rexa FIT-S03-123A/21M015-523/P | S2-15 min | DN 32/40 | 1.5 kW | 10 m | no | 6093109 | |
Rexa FIT-S03-123A/21T015-540/O | S2-15 min | DN 32/40 | 1.5 kW | 10 m | no | 6093110 | |
Rexa FIT-S03-224A/21T025-540/O | S2-15 min | DN 32/40 | 2.5 kW | 10 m | no | 6093108 |