Loop flushing shuttle valve section
Loop Flushing Shuttle Spool
Loop Flushing Relief Valve
Schematic
Loop flushing relief valve
The loop flushing relief valve is incorporated into all TMM motors. Use 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 and 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 5.5, 13 and 16 bar. Valves are available with several orifice sizes to meet the flushing flow
requirements of all system operating conditions.
Loop flushing flow curves
0
4
8
12
16
20
24
28
0 2 4 6 8 10
432
1
12 14 16 18
Low system pressure minus case pressure (bar)
Case flow (l/min)
Case flow (US gal/min)
A3, 5 bar
A3, 13 bar
D2, 13 bar
Anti-cavitation valve
The TM motors are optional equipment with anti-cavitation valve (ACV). ACV has to garantee a minimum
oil pressure in the low pressure side in case of low engine speed and high oil temperature.
Service Manual
TMM Transit Mixer Axial Piston Motor, Size 070/084/089
Operation
L1211037 • Rev AC • Apr 2014 11
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