Wilo-Rexa FIT

Series description
Duty chart
Downloads
Product

Series description
Duty chart
Downloads
Product

Series description

Your advantages

Ready-to-plug and immediately ready to go (A and P version)
Attached float switch (A-model) enables easy operation
Safe vortex hydraulics with large, free ball passage to prevent clogging during operation
Sealing chamber with optional external monitoring
Lightweight

Construction

Submersible sewage pump for intermittent operation for stationary and portable wet well installation.

Application

Pumping of

Sewage containing faeces in accordance with EN 12050-1
Wastewater

Equipment/function

Winding temperature monitoring with bimetal strip
Optional external pencil electrode for sealing chamber control

Scope of delivery

Submersible sewage pump with 10 m cable
Cable version depending on the variant:

With bare cable ends (O)
With plug (P)
With float switch and plug (A)

Operating and maintenance manual

Type key

Example:	Wilo-Rexa FIT V06DA-110/EAD1-2-T0015-540-A
Rexa	Submersible sewage pump
FIT	Series
V	Vortex impeller
06	Nominal diameter of pressure connection e.g. DN 65
D	Hydraulics drilled on the suction side in accordance with DIN drilled
A	Standard material version, hydraulics
110	Hydraulics definition
E	Surface-cooled motor
A	Standard material version motor
D	Seal with two independent mechanical seals
1	IE efficiency class, e.g. 1 = IE1 (derived from IEC 60034-30)
-	not Ex-rated
2	Number of poles
T	Mains connection version: M = 1~ T = 3~
0015	Value/10 = motor power P2 in kW
5	Frequency (5 = 50 Hz, 6 = 60 Hz)
40	Code for rated voltage
A	Additional electrical equipment: O = with bare cable end P = with plug A = with float switch and plug

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, max. 60 °C for 3 min
Free passage: 50 / 65 / 80 mm
Cable length: 10 m

Materials

Motor housing: 1.4301
Hydraulics housing: EN-GJL 250
Impeller: EN-GJL 250
Static gaskets: NBR
Sealing on pump side: SiC/SiC
Sealing on motor side: C/MgSiO4
Shaft end: Stainless steel 1.4021

Description/construction

Submersible sewage pump as submersible monobloc unit for stationary and portable wet well installation in intermittent operation.

Hydraulics

The outlet on the pressure side is designed as horizontal flange connection. The maximum possible dry matter is 8 % (depending on the hydraulics). Vortex impellers are used as the impeller shape.

Motor

The motors available are surface-cooled motors in single-phase version (with built-in operating capacitor) and three-phase version for the direct starting. The waste heat is given off directly to the surrounding fluid via the motor housing. These motors can operated immersed in continuous duty (S1) and non-immersed in short-time duty (S2) or intermittent periodic duty (S3).

Furthermore the motors are equipped with thermal motor monitoring. This protects the motor windings against overheating. For units with single-phase AC motors this is built-in and switches automatically. I.e. if the motor is switched off due to overheating and then cools down it is automatically switched on again. Bimetallic strips are used for this as standard.

In addition the motor can be equipped with an external sealing chamber electrode for monitoring the oil barrier chamber. This signals if there is water ingress into the oil barrier chamber through the mechanical seal on the fluid side.

The connection cable has a length of 10 m as standard and is available in following versions:

With bare cable ends
With plug
With float switch and plug

Seal

There is a sealing chamber between the motor and hydraulics. This is filled with medicinal white oil. The fluid-side and motor-side seals are provided by two mechanical seals which rotate independently of each other.