Characteristics of the filter housing
Pressure loss curve –
ΔP filter housing
The upper housing curves apply to mineral oil with a density of 0.86 kg/dm³ and
a cinematic viscosity of 30 mm²/s. The lower housing curves apply to water at
20 °C. For turbulent flow, the differential pressure will change proportionally to
the density; for laminar flow, it will change proportionally to the density and
viscosity.
The flow velocity should not exceed 3 m/s at the filter inlet for oil and 4 m/s for
water.
∆P
[b
ar
]
Flow rate
[l/min]
Pressure loss calculation –
ΔP filter element
The following calculation is based on a clean filter element.
1000
*
]
[
*
min]
/
[
*
]
/
²
[
*
]
[
inch
L
n
l
Q
s
mm
V
R
bar
p
=
∆
R = R-factor
V = Viscosity
[mm²/s]
Q = Flow rate
[l/min]
n = Number of elements
L =
Length of element [inch]
WBF 16 bar
en(us)
Page 19 / 64
MoWa WBF 16bar 4031149a en-us 2016-02-25.doc
2016-02-25
