Measurement Guide

Grundfos cannot be held responsible for wrong sizing based on this guide. If any questions to selection or sizing please feel free to contact us any time or go to grundfos.us DN000430_1220
PRESSURE BOOSTING  QUICK SIZING
Application Recommended pump
One-storey house
For toilet ushing, washing machine, car washing and garden watering
SBA 3-35
Two-storey house
For toilet ushing, washing machine, car washing and garden watering
SBA 3-45
General recommendation Application Recommended pump
If the distance from tank wall to the pump
is above 1.5 metres (4.9 feet), the model with
side inlet should be selected.
If the distance from tank wall to the pump
is less 1.5 metres (4.9 feet), the model with
suction strainer should be selected.
One-storey house
For toilet ushing, washing machine,
car washing and garden watering
SB 3-35
Two-storey house
For toilet ushing, washing machine,
car washing and garden watering
SB 3-45
CONVENTIONAL PUMP CONTROL
PRECONDITIONS
• 3 bar tap pressure is considered, to achieve 4 bar pressure add 2 more oors • Flooded Suction • 0,5 l/s per tap average, usage pattern is taken into account
SB
SBA
Quick selection guide
GRUNDFOS DOMESTIC COLD WATER