IBO BETA 2 - Efficiency Curve

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Eciency curve
Eciency curve guidance
Any pump setting will have a proper eciency curve (Q / H curve). The AUTO (auto-adapta-
tion) mode covers the eciency scope. The input power curve (P1 curve) belongs to each
Q/H curve. The power curve represents the pump power consumption (P1) in Watt for the
given Q/H curve.
Conditions to obtain the curve
The description below regards eciency curves for BETA 2 series pumps:
• Pumped medium: water without gas.
• The water density for which the curves were created was ρ= 983.2 kg / m3, temperature:
+ 60 °
• All values expressed with curves are means, they cannot be treated as guaranteed curves.
If a specic eciency is required, carry out a separate measurement for the given pump.
• The curves were created using pumped water kinematic viscosity
υ = 0.474 mm2 / s (0.474CcST)
The reference criterion for the most energy-ecient circulators is EEI ≤ 0.20.
For BETA 2 25-40/180 pump, EEI ≤0.18,
For BETA 2 25-60/180, BETA 2 25-60/130 pumps EEI ≤0.20,
this means that the BETA 2 pump is an energy-saving pump.