Danfoss H1 Basic Information page 29

Basic Information
H1 Axial Piston Pumps, Single and Tandem
System design parameters
© Danfoss | April 2017
Filter bypass characteristic (completely blocked element)
120
[31.70]
100
[26.42]
80
[21.13]
60
[15.85]
40
[10.57]
20
[5.28]
0
0 2 4 6
[29] [58] [87]
Differential pressure over filter bypass
Bypass sensor clearance
The bypass sensor is activated by the magnetic bypass valve. No steel parts are allowed within a radius of
150 mm [5.91 in]. Moving steel devices or parts are not allowed within a radius of 250 mm [9.84 in].
mm
[in]
250 min
[9.84]
38 150 min
[1.50]
[5.91]
P003 356E
Remote charge pressure filtration, full flow
Reservoir
Charge
relief
to low pressure
valve
side of loop
and servo
control
to pump case
Filter bypass
sensor activated
8 10 12 14
[116] [145] [174] [203]
bar [psi]
(blocked filter element)
Integral charge pressure filtration, full flow
Charge
pump
Strainer
Filter bypass
sensor
to low pressure
side of loop
Bypass
and servo
control
Filter with bypass
P003 472E
16 18 20 22
[232] [261] [290] [319]
P003 185E
Strainer
Reservoir
Charge
relief
valve
to pump case
Filter with bypass
11062168 | BC00000057en-US0602 | 29
Charge
pump
Filter bypass
sensor
Bypass
P003 473E