Rexroth Z2FS type stacking two-way flow control valves 
 Z2FS superposition two-way flow control valves to regulate oil flow to achieve flow control by changing the section size of the orifice. In the reverse oil flow directly through the oil return check valve. Choose a different installation location for the 6,10 diameter inlet throttling or export section. Optional different models for 16, 22 bore two oil inlet throttling or outlet throttle connection is working oil chamber. 
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