Compact design for install versatility

The Si-61 is a piston pump with integrated tank (0,37l) specifically designed to evacuate acidic condensates from gas condensing boilers up to 50 kW.

The Sauermann® technology inside the pump allows the particulate removal and with its innovative float makes it a totally reliable pump for mounting on condensing boilers 

Thanks to its small size, the Si-61 can be easily installed in multiple situations.


The delivery height greater than that of a centrifugal pump up to 6m in vertical
Wall mounted bracket for easier install

Technical details

Max flow rate10 l/h
Max discharge head6 m
Max pressure8 m
Insulation classDouble insulation
Mains supply230V ~ 50/60Hz ~ 10 W
Operation conditions100%
Tank volume0,37 l
Weight1,08 kg
Master pack quantity5
Safety switch 
NC 4 A resistive - 250V
3 Detection systems
Thermal protection 
90°C (Auto-reset)

Pump dimensions

Pump168 mm90 mm88 mm
Packaging293 mm136 mm183 mm

Detection levels

ON28 mm
OFF24 mm

Pump sound levels

at 3,3ft or 1m in application (dBA)<= 28
Kit contents 
Si-61 pump
Safety standards 
RoHS and WEEE directives 
Technical data sheet (PDF)