Aquarea PAW-DHWM 80-120 ZNT, Инструкция по эксплуатации

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12
EN
Calculation of pressure drops
The values of total static pressure drop can be calculated by adding up the losses
from individual elements built into the air pipeline system and the internal static
pressure. The values of static pressure drops of individual elements (static pressure
drops of elements relate to the internal diameter ø125mm or
□ 150x70mm) are shown
in Table no. 2 .
Table no. 2: Types of elements and corresponding pressure loss values
Flexible pipe according to DN 125
Spiral ribbed pipe DN 125
Diagram 2: Value of the static pressure drop for selected pipes
Type of element
Value of static pressure loss
a.) Spiral ribbed pipe
Diagram 2
b.) Rectangular pipe □150x70 mm
Diagram 2 (according to DN 125)
c.) Rectangular elbow - horizontal 90° 5 Pa
d.) Elbow 90° 4 Pa
e.) Angular reducer ø125 to □150x70 5 Pa
f.) Rectangular elbow - vertical 90° 5 Pa
g.) Elbow 45° 3 Pa
h.) Reducer ø125 to □150x70 3 Pa
i.) Flexible tube
Diagram 2
j.) Air intake grid 25 Pa
P
re
ss
u
re
d
ro
p
[
P
a/m
]
Volumetric air flow [m³/h]