Strong and durable heating pump

The Si-82 centrifugal pump is designed to be easily installed whatever the layout of the premises. It is capable of evacuating up to 500l/h and suitable for gas condensing boilers. As it also tolerates charged, high temperature and acidic condensates (pH>2.5).


High performance, up to 5m vertically

Technical details

Max flow rate500 l/h
Max discharge head5 m
Max pressure5,4 m
Insulation classDouble insulation
Mains supply230V ~ 50Hz - 70W - 0.67A
Operation conditions30%: 3s ON - 7s OFF
Max condensate temperature65 °C
Max condensate acidityph > 2.5
Tank volume2 l
Weight2,5 kg
Master pack quantity4
Safety switch 
NC 4 A resistive - 250 V
Thermal protection 
105° C (auto reset)

Pump dimensions

Pump279 mm130 mm174,5 mm
Packaging400 mm300 mm200 mm

Detection levels

ON53 mm
OFF42 mm

Pump sound levels

at 3,3ft or 1m in application (dBA)<= 45
Kit contents 
One-piece centrifugal pump with tank (2L).
Plug-in power (1.5m, European plug) & safety switch cord (1.5m, bare ends)
Inlet hose: 5 m roll Øint 10 mm int. (3/8”)
Adaptor Øint 24/25-32-40 mm (1’’- 1” 1/4 - 1’’ ½)
2 screws + 2 plugs
Safety standards 
RoHS and WEEE directives 
Technical data sheet (PDF) 
Wiring diagram