3.5.1 E-Tec 28 Available Pump Head and Power Consumption 7 70 6 60 Pump electrical consumption (W) 5 50 Head (m water) 4 40 3 30 2 20 1 10 0 200 600 1000 1400 800 1200 1600 400 0 0 Flow rate (l/h) A+B = Head available with by-pass closed B = Head available with by-pass open C+D = Power consumed by the pump with by-pass open (dotted area) D = Power consumed by the pump with by-pass closed (dotted area) Fig.
3.1 3.5.2 E-Tec 33 Available Pump Head and Power Consumption 7 70 6 60 Pump electrical consumption (W) 5 50 Head (m water) 4 40 3 30 2 20 1 10 0 0 200 600 1000 1400 800 1200 1600 400 0 Flow rate (l/h) A+B = Head available with by-pass closed B = Head available with by-pass open C+D = Power consumed by the pump with by-pass open (dotted area) D = Power consumed by the pump with by-pass closed (dotted area) Fig. 3.2 Alpha E-Tec 28 and 33 - Technical Data 7 9 d e e p S A C C e p S 9 d e D e p S B 6 d e e p S 9 d e C p S e 9 d e D D S B 5 d e e p