Full Product Manual

Performance curves
13
Grundfos COMFORT
5
5. Performance curves
Curve conditions
The guidelines below apply to the performance curves
on the following pages:
• Test liquid: airless water.
• The measurements for COMFORT PM have been
made at a water temperature of 20 °C.
• All curves show average values and must not be
used as guarantee curves. If a specific minimum
performance is required, individual measurements
must be made.
• The COMFORT PM curves apply to a kinematic
viscosity of  = 1 mm
2
/s (1 cSt).
• The conversion between head H [m] and pressure p
[kPa] was made for water with a density of ρ = 1000
kg/m
3
. For liquids with other densities, for example
hot water, the discharge pressure is proportional to
the density.