Loop Flushing Relief Valve - Danfoss H1B 060 Service Manual

Service Manual
H1 Bent Axis Motors, Size 060/080/110/160/210/250 cm3
Operation

Loop flushing relief valve

© Danfoss | August 2018
The loop flushing relief valve is incorporated into all H1 motors and uses the loop flushing option in
installations that require fluid to be removed from the low pressure side of the system circuit due to
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.
Loop flushing relief valve (cross section)
P003 491
Loop flushing relief valve sizes
5
10 15
40 bar
30 bar
20 bar
10 bar
0 10 20
X
X Loop flushing flow (l/min)
Y
Low system pressure minus case pressure (bar)
Loop flushing relief valve schematic
A
B
P003 487
20 30 40
50
30 40 50 60
P006 034
L2
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