H1F loop flushing relief valve
The loop flushing relief valve is incorporated into all H1 motors used in closed circuit applications to
remove fluid from the low pressure side of the system circuit to meet cooling requirements.
The loop flushing relief valve is also used to facilitate the removal of contaminants from the loop.
The loop flushing valve is equipped with an orificed charge pressure relief valve designed with a cracking
pressure of 16 bar [232 psi].
Valves are available with several orifice sizes to meet the flushing flow requirements of all system
operating conditions.
A loop flushing defeat option is available.
Loop flushing relief valve (cross section)
P003 491
Loop flushing relief valve schematic
P003 487
A
B
L2
Loop flushing relief valve sizes
40 bar
30 bar
20 bar
10 bar
10
15
20
30
40
50
5
10
20
30
40
50
60
P006 034
0
X
Y
X
Loop flushing flow (l/min)
Y
Low system pressure minus case pressure (bar)
Service Manual
H1F Bent Axis Fixed Displacement Motors, Size 080
Operation
©
Danfoss | December 2023
AX465363259664en-000102 | 15
