Bosch Rexroth | ZSF160F1-1-1XM01
ZSF160F1-1-1X/M/01
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The ZSF160F1-1-1X/M/01 prefill valve belongs to the ZSF Prefill Valves series produced by Bosch Rexroth for hydraulic automation tasks that require rapid cylinder filling. It is built for nominal size 160, providing an effective area A1 of 196.07 cm². A main poppet stroke of 40.0 mm lets the valve open fully, while a 1.5 mm nozzle regulates pilot flow to the control port. The pilot chamber volume is 122.0 cm³. Connection is made through a flange interface, and threading follows the ISO 228-1 standard. Port P is cut to G1 1/4, and port X is cut to G1/2, simplifying installation into manifolds or pipework.
The unit weighs 47 kg and seals are formed with NBR to suit common hydraulic oils. It is supplied without a directional valve set-up and it offers no pre-decompression function, so external components must handle those roles when required. Maximum operating limits are 16 bar at port A, 350 bar at port B,p, and 150 bar at port X, establishing safe pressure boundaries for differential circuits. These ratings, combined with the threading and sizing detailed above, define how the ZSF160F1-1-1X/M/01 integrates into heavy-duty hydraulic systems.
Technical Specifications
Directional Valve Set-up
Without
Effective Area A1
196.07 cm²
Max Pressure Port A
16 bar
Max Pressure Port B,p
350 bar
Max Pressure Port X
150 bar
Nominal Size (ng)
160
Nozzle Diameter
1.5 mm
P Port Thread
G1 1/4
Pilot Volume Vst
122.0 cm³
Port Thread Standard
ISO 228-1
Pre-decompression
Without
Seal Material
NBR
Stroke Main Poppet (s1)
40.0 mm
Type Of Connection
Flange
Weight
47 kg
X Port Thread
G1/2
1620 Old Apex Road
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