Compact design for install versatility
Available in 
Europe

The Si 1806 is a centrifugal tank pump for gas condensing boilers.

With a 500l/h pumping capacity linked with a compact design the pump is capable of evacuating charged, high temperatures (65°C) acidic (ph >3.4) condensates from gas condensing boilers.

High discharge head

Technical details

Max flow rate1 gph, 500 l/h
Max discharge head1 ft, 5,4 m
Max suction head0 ft
Max pressure5,8 m
Mains supply230V~ 50/60Hz - 90 W
Operation conditions30%: 3s ON – 7s OFF
Max condensate temperature65 °C
Max condensate aciditypH > 3,4
ProtectionIP20
Tank volume0,5 l
Weight2 kg
Master pack quantity10
Safety switch 
NC 4 A resistive – 250V
Detection 
Integrated, floats, (±3mm)
Thermal protection 
120°C (automatic restart)

Pump dimensions

LengthWidthHeight
Pump195 mm130 mm132 mm
Tank195 mm130 mm43 mm
Packaging235 mm135 mm185 mm

Detection levels

ON32 mm
OFF25 mm
SAFETY39 mm

Pump sound levels

at 3,3ft or 1m in application (dBA)<= 47
Kit contents 
One-piece centrifugal pump with tank (0.5L)
Integrated barb end check valve Ø ext. 10 mm (3/8”)
Power cable: (2m with European plug)
Safety switch cord (1m, bare ends)
5m roll of 10mm (3/8'') clear PVC tubing
Safety standards 
CE
EAC
RoHS and WEEE directives 
Compliant
Technical data sheet 
Instructions