Grundfos SCALA1 3-45 - Mechanical Data; Technical Data; Operating Conditions

16. Technical data
16.1 Operating conditions
SCALA1
3-25 3-35 3-45 5-25 5-55
Max. ambient temperature
55 °C
(131 °F)
55 °C
(131 °F)
55 °C
(131 °F)
55 °C
(131 °F)
55 °C
(131 °F)
Max. liquid temperature
45 °C
(113 °F)
45 °C
(113 °F)
45 °C
(113 °F)
45 °C
(113 °F)
45 °C
(113 °F)
Maximum system pressure
[bar (psi)]
8 (116) 8 (116) 8 (116) 8 (116) 8 (116)
Maximum inlet pressure [bar
(psi)]
5 (72.5) 4 (58) 3 (43.5) 5 (72.5) 2 (29)
Max. head [m (ft)] 50 Hz 25 (82) 36 (118.1) 44 (144.3) 26 (85.3) 52 (170.6)
Max. head [m (ft)] 60 Hz 25 (82) 35 (114.8) 51 (167.3) 27 (85.3) 53 (173.8)
Nominal head [m (ft)] 15 (49.2) 20 (65.6) 25 (82) 15 (49.2) 25 (82)
Nominal flow [m
3
/h (gpm)]
3.00 (12.19) 3.72 (16.38) 3.59 (15.80) 4.80 (21.12) 5.33 (23.48)
IP Rating X4D X4D X4D X4D X4D
Pumped liquid Clean water Clean water Clean water Clean water Clean water
Noise level [db(A)] < 55 < 55 < 55 < 55 < 55
Frequency of starts and stops 25 per hour 25 per hour 25 per hour 25 per hour 25 per hour
Start pressure (pstart) [bar
(psi)]
1.2 (17.4) 1.5 (21.8) 2.2 (31.9) 1.2 (17.4) 2.8 (40.6)
16.2 Mechanical data
Pipe connections are R1" or NPT1".
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