Minimum Inlet Pressure; Safety; Intended Use - Wilo Stratos MAXO Notice De Montage Et De Mise En Service

en-US
See rating plate and catalogue for further information.
5.3

Minimum inlet pressure

Minimum inlet pressure (above atmospheric pressure) at pump suc-
tion ports for avoidance of cavitation noises at fluid temperature:
Nominal Fluid temperature
diameter
14 °F ...
122 °F
(-10 °C to
+50 °C)
1.25 inch 4.27 psi
(H = 15 ft –
max
35 ft)
1.25 inch 7.11 psi
(H = 52 ft)
max
1.5 inch 4.27 psi
(H = 15 ft, 25
max
ft)
1.5 inch 7.11 psi
(H = 52 ft)
max
2 inch 4.27 psi
(H = 20 ft)
max
2 inch 7.11 psi
(H = 25 ft)
max
2 inch 7.11 psi
(H = 35 ft)
max
8
176 °F 203 °F 230 °F
(+80 °C) (+95 °C) (+110 °C)
11.37 psi 14.22 psi 22.76 psi
14.22 psi 17.07 psi 25.6 psi
11.37 psi 14.22 psi 22.76 psi
14.22 psi 17.07 psi 25.6 psi
11.37 psi 14.22 psi 22.76 psi
14.22 psi 17.07 psi 25.6 psi
14.22 psi 17.07 psi 25.6 psi
Nominal Fluid temperature
diameter
14 °F ...
122 °F
(-10 °C to
+50 °C)
2 inch 9.95 psi
(H = 50 ft)
max
9.95 psi
3 inch
Table 2: Minimum inlet pressure
NOTICE
Valid up to 984 ft above sea level. For locations at
higher altitude +0.15 psi/328 ft.
Adjust values appropriately in cases of higher fluid
temperatures, lower-density fluids, higher flow re-
sistances or lower air pressure.
The maximum installation height is 6,562 ft above
sea level.
6

Safety

6.1

Intended use

Usage
Circulation of fluids in following application areas:
▪ Hot water heating systems
▪ Cooling and cold water circuits
176 °F 203 °F 230 °F
(+80 °C) (+95 °C) (+110 °C)
17.07 psi 21.33 psi 32.71 psi
17.07 psi 21.33 psi 32.71 psi
WILO SE 2019-08