Catalogue SD - PUMP CARE - suction filters
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UFI HYDRAULIC - 3363
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PRESSURE DROP CURVES (Ap)
The "Assembly Pressure Drop (Àp)" is obtained by adding the pressure drop values of the Filter housing and
of the Clean Filter Element corresponding to the considered Flow Rate and it must be lower than 3 kPa (0,03 bar).
FILTER HOUSING PRESSURE DROP
(mainly depending on the port size)
Ap (kPa) 4
Ap (kPa) 4
FSD 11-21-31
FSD 41-51-61
0,04 0,03 0,02 0,01
1"
0
50 100 150 200 250 300 l/min
0
200 400 600 800 1000 1200 l/min
CLEAN FILTER ELEMENT PRESSURE DROP WITH M+ MEDIA
(depending both on the internal diameter of the element and on the fi Iter media)
Ap (
Ap (kPa) 4
Ap (kPa)
MF ERD 21
ERD 11
0,04 0,03 0,02 0,01
4
■
-
E
Z
1
G
1
i :
0
15 30 45 60 75 l/min
90
0
15 30 45 60 75 90
l/min
Ap (
Ap (kPa)
Ap (kPa) 4
ERD 31
ERD 41
0,04 0,03 0,02 0,01
4
_
F
\i
I
E
I
IV
I I
r
Z
TI
/
?
t
»
?
M
ri
I
r
\
A
■
i '
0
25 50 75 100 125 150
l/min
0
50 100 150 200 250 300
l/min
Ap (
Ap (kPa) 4
Ap (kPa) 4
ERD 51
ERD 61
0,04 0,03 0,02 0,01
0
100 200 300 400 500 600
l/min
0
200 400 600 800 1000 1200
l/min
BYPASS VALVE PRESSURE DROP
When selecting the fi Iter size, these curves must be taken into account if it is foreseen that any fl ow peak is to be absorbed by the bypass valve, it also must be of proper coniguration to avoid pressure peaks. The valve pressure drop is directly proportional to l uid speciic gravity.
A p (kPa) 60
Ap (bai;
Ap (kPa) 60
FSD 11
FSD 21-31
,6 45 ,3 0,15
0,45
45 30 15
I 0.3|
0,15
25 50 75 100 125 150
l/min
0
15 30 45 60 75 l/min
90
0
Ap (bai)
0,6
0,45
0,3
0,15
Ap (bafl
Ap (kPa) 60
Ap (kPa) 60
FSD 41
FSD 51-61
6
45 ,3 15
45 30 15<