Wilo Stratos PARA/-Z Serie Notice De Montage Et De Mise En Service page 33

Minimum inlet pressure (above atmospheric pressure) at the pump suction port in order to
avoid cavitation noises (at fluid temperature T
Pump type
Stratos PARA .../1-5
Stratos PARA .../1-7
Stratos PARA .../1-9
Stratos PARA .../1-11.5
Stratos PARA .../1-11
Stratos PARA .../1-8
Stratos PARA /1-12
1)
Special version for 110 °C (see rating plate)
The values apply up to 300 m above sea level; addition for higher locations:
0.01 bar/100 m increase in height.
5.2.1 Permissible fluid temperatures:
Pump type
Max. ambient tem-
perature
25°C
40°C
45°C
50°C
55°C
60°C
65°C
1)
Special version for 110 °C (see rating plate)
CAUTION! Risk of material damage!
If the pump is operated with black steel piping in a heating water system according to
VdTÜV 1466, or in permanent operation with a feed temperature of > 80 °C, the pump
can be damaged. A heating filter is to be provided.
5.2.2 Approved fluids
The high-efficiency pumps of the Wilo-Stratos PARA/-Z series are approved for the cir-
culation of heating water (in accordance with VDI 2035/VdTÜV 1466).
CAUTION! Risk of injury and damage to property!
Non-approved fluids can damage the pump and also cause injury.
• The pump manufacturer's approval must be obtained for the use of other fluids, such
as water/glycol mixtures.
• The relevant safety data sheets and specifications of the manufacturer (e.g. regarding
mixing ratios) must be observed without fail!
• Approved additives are to be mixed to the fluid on the pressure side of the pump, even
if this is contrary to the recommendations of the additive manufacturer!
Installation and operating instructions Wilo-Stratos PARA/-Z
T
Med
-10°C...+50°C
0.05 bar
0.3 bar
Stratos PARA .../1-5
Stratos PARA .../1-7
Stratos PARA .../1-9
Stratos PARA .../1-11.5
Permissible temperature of the fluid
1)
-10 to 95°C (110°C)
-10 to 95°C
-10 to 95°C
-10 to 90°C
-10 to 80°C
-10 to 70°C
-10 to 60°C
):
Med
T
Med
+95°C
0.45 bar
1.0 bar
Stratos PARA .../1-11
Stratos PARA .../1-8
-10 to 110°C
-10 to 90°C
-10 to 80°C
-10 to 70°C
-10 to 60°C
-10 to 50°C
-10 to 40°C
T
Med
+110°C
1)
1.1 bar
1.6 bar
Stratos PARA .../1-12
-10 to 110°C
-10 to 90°C
-10 to 80°C
-10 to 65°C
-10 to 50°C
-10 to 35°C
-10 to 20°C
English
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