Rexa FIT-S
Submersible pump
Efficient submersible sewage pump in non-clog design with macerator for reliable pressure drainage in commercial properties.
- A radial macerator with double shear effect provides excellent clogging resistance
- Optimised hydraulics/macerator combination for a broad cover of the delivery head
- Use of the smallest possible pipework guarantee low overall installation costs
- Developed for easy selection to meet the requirements of different building types
- High-quality motor with two mechanical seals and optional monitoring of the sealing chamber ensure long service life
- Stainless-steel motor housing provides high resistance to corrosion, even when the motor is non-immersed
Logos/Certifications
Recommended services
Design
Fully submersible grinder pump for stationary and portable wet installation in intermittent operation.Liquid
Sewage pumping according to 12050
The pumps meet the requirements of EN 12050-1.
Equipment/function
- Radial macerator with double shear effect
- Thermal motor monitoring with bimetallic sensor
- Single-phase AC motor with self-switching thermal motor monitoring
- Single-phase AC motor with separate capacitor switchgear
- Different versions:
- Version “P”: with plug
- Version “A”: with float switch and plug
- Version “O”: bare cable ends
Type key
Example: | Rexa FIT-S03-123A/21M015-523/P |
Rexa | Submersible sewage pump |
FIT | Series |
S | Macerator |
03 | Nominal diameter of the discharge port: 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%
- IP rating: 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
Submersible 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 steel for blades. 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). The pump may be used in Zone 2 hazardous areas.
Rexa FIT-S ... /M ... /A
Submersible 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 steel for blades. 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). The pump must not be used in hazardous areas.
Rexa FIT-S ... /T ... /O
Submersible 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 steel for blades. 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. The pump may be used in Zone 2 hazardous areas.
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 installation
- Pump support foot for portable installation
- Level control devices
- Fixation sets with bonded anchor
- Fixation accessories and chains
- Switchgear, relays and plugs