Submersible pump in cast-iron for sewage water, 2 poles, 0.55kW,
Max head: 8 m,
Max capacity: 225 L/min



Small pump in cast-iron with "vortex" impeller. When the impeller turns, it creates a vortex pushing the water through the pump body. As the impeller is positioned in the upper part of the pump body it permits a wide free passage for the solid parts contained into the water. Thanks to its heavy duty construction and the top quality oil bathed motor the VORTEX 75 can be used also to pump sewage water and manure. In the model VORTEX 75 the capacitor is always positioned in an external control box to reduce the dimensions of the pump permitting the installation in really small pits.


The VORTEX 75 is usually installed into houses' cellars to drain the rain water or the domestic sewage water but it is also used in farms to pump out the dirty waters of the stables containing manure and solid parts. This model cannot be used to pump water containing stones.

Operation conditions

Max liquid temperature: 40 °C (104 °F)

pH: 6-10

Max density < 1100 kg/m³

Max immersion depth: 5m



Performance curve:


Model                                      Head (m)                                    
1 2 3 4 5 6 7 8
VORTEX 75   L/min  225 205 188 165 139 105 63 4
m3/h 13,5 12,3 11,3 9,9 8,3 6,3 3,8 0,2
L/s 3,75 3,42 3,13 2,75 2,32 1,75 1,05 0,07



Technical characteristics:

Outlet 1"1/4 - DN 32 vertical threaded
Solid passage 30mm
Impeller Back open impeller "vortex" type.
Mechanical seal Mechanical seal in allumina / graphite / NBR + NBR oil seal          
Motor Oil bathed. Insulation class: F
Motor protection Automatic reset built-in thermal protection
Float-switch The pump can be supplied with or without float-switch
Cable 10 meters cable H07RNF 3G1 with plug
Capacitor 12,5μF - 450V (positioned in an external control box at the end of the cable)
IP 68



Electric characteristics:

     Model        Power   Nos. poles   R.p.m.        Voltage      Ampere
VORTEX 75 0.75HP - 0.55kW 2 2850 230V/50Hz/1 4,2 A




Impeller                Cast-iron GG 20                                                                     
Pump cover Cast-iron GG 20
Motor case Cast-iron GG 20
Pump support Cast-iron GG 20
Motor shaft Inox AISI 420 B tempered
Packing set NBR



Weight and dimensions:

Model Outlet             Dimensions (mm)               Weight   
female threaded A B C D E (kg)
VORTEX 75   1"1/4 - DN 32 280 220 230 200 470 17




Connections Professional straight brass connection 1"1/4 in three pieces
No-return valve Professional ball check valve threaded 1"1/4 in cast-iron
Float-switch 10 or 20 metres cable float-switch to be connected to an electric board in case it is not possible to use the standard float-switch connected to the pump
Electric board Model F5-0.5/3-1 to protect the pump with a manual reset thermal protection and to connect a float-switch



VORTEX 75 ENG - REV. 2.3 - 19/01/2024

Comex Srl Società Unipersonale, Via delle Industrie, 42 - 31057 Silea (TV) - ITALY
P.I.: 00345210264 - Cap. Soc.: 50.000€ i.v.