Каталог морской продукции компании Webasto

120 121 ■■ The Head (m) stated in the pump curves (Graphic 1 – 5) represents the equivalent pressure drop between inlet and outlet of the pump. This pressure drop equals the total back pressure of the sea water system from sea water entry to overboard discharge. Please do not confuse it with the position of the pump position below the water line. ■■ Depending on pressure drop the effective water flow through the pump and thus the sea water system varies significantly. ■■ Always ensure that the minimum sea water flow through the A/C unit is respected. It should be measured during each commissioning of the sytem. ■■ Operating the pumps outside the limits of the pump curves may result in motor overload or cavitation. These cases are excluded from Webasto warranty. 50 Hz water pump curves 50 Hz water pump curves (continued) 60 Hz water pump curves Graphic 1 50 Hz up to 100 l/min. 1 WB250 2 WB350 3 WB500 4 WB500G 5 WB1000 6 WB1000G 7 WB1500 8 WB2500G Graphic 2 50 Hz up to 300 l/min. 1 WB2000 2 WB3000G 3 WB3800G 4 WB4000 5 WB3500 6 WB5600 7 WB5500G Graphic 3 50 Hz up to 700 l/min. 1 WB5500 2 WB8000 3 WB7400 4 WB7500 5 WB9800 6 WB10500 Graphic 4 60 Hz up to 100 l/min. 1 WB250 2 WB350 3 WB500 4 WB500G 5 WB1000 6 WB1000G 7 WB1500 8 WB2500G Graphic 5 60 Hz up to 700 l/min. 1 WB2000 2 WB3000G 3 WB3800G 4 WB5500G 5 WB7500 –––– Centrifugal ----- Self-priming Q (gpm) Q (l/min) 0 0 5 10 15 20 25 10 20 30 40 50 60 70 80 90 100 Head (m) p (kPa) 0 0 5 50 10 100 15 150 20 200 25 250 Q (gpm) Q (l/min) 0 0 10 20 30 40 50 60 70 80 90 100 5 10 15 20 25 Head (m) p ( k Pa) 0 0 20 40 60 80 100 120 140 160 180 2 4 6 8 10 12 14 16 18 8 7 6 5 4 3 1 2 –––– Centrifugal ----- Self-priming –––– Centrifugal ----- Self-priming 1 2 3 5 7 6 8 4 Q (gpm) Q (l/min) 0 100 200 300 400 500 600 700 0 20 40 60 80 100 120 140 160 180 Head (m) p (kPa) 0 0 5 50 10 100 15 150 20 200 25 250 30 300 35 350 6 5 4 3 1 2 Pumps Pumps Cooling Accessories –––– Centrifugal ----- Self-priming Q (gpm) Q (l/min) 0 10 20 30 40 50 60 70 80 90 0 50 100 150 200 250 300 350 Head (m) p (kPa) 0 5 10 15 20 25 0 50 100 150 200 250 7 6 5 3 1 2 4 Q (gpm) Q (l/min) 0 100 200 300 400 500 600 0 20 40 60 80 100 120 140 160 Head (m) p (kPa) 0 5 50 10 100 15 150 20 200 25 250 30 300 35 350 –––– Centrifugal ----- Self-priming 1 2 3 5 4