Bosch Rexroth | Z2FS6A5-4X2QV
Z2FS6A5-4X/2QV
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The Z2FS6A5-4X/2QV valve belongs to the Z2FS Throttle Check Valves series and is produced by Bosch Rexroth for hydraulic automation systems. Its size 6 envelope defines the mounting face dimensions and flow paths used in compact power units. Flow reduction acts on side A, allowing controlled throttling in that specific circuit branch. Flow is set with a spindle that has an internal hexagon and a scale, so technicians can fine-tune restriction while reading the position. The housing withstands up to 350 bar, which matches typical high-pressure supply lines in industrial presses. A design limit of 80 l/min caps the volume that can pass without excessive pressure loss. Leakage stays below 1 l/min at a differential pressure of 350 bar, maintaining actuator position accuracy. Installation can be in any orientation, simplifying manifold layout during machine design.
The subplate interface follows the ISO 4401-03-02-0-05 porting pattern, so the valve aligns with standard CETOP 03 manifolds. It also meets NFPA code T3.5.1 R2-2002 D03, ensuring interchangeability with North American mounting blocks. System cleanliness must reach ISO 4406 class 20/18/15 because the throttling gap is sensitive to particle contamination. FKM seals resist mineral oils and support service temperatures from ‑20 °C to +80 °C, giving reliable sealing across typical machine environments. The body is supplied without a locating hole, so alignment relies on the manifold dowel rather than the valve itself. Version code 2Q identifies the standard configuration, which fits most proportional control setups without special options. Total mass is 1.0 kg, permitting manual installation without lifting aids and minimizing manifold stress.
Technical Specifications
Adjustment Type
Spindle With Internal Hexagon And Scale
Ambient Temp Max (fkm)
+80 C
Ambient Temp Min (fkm)
-20 C
Cleanliness Class
ISO 4406 (c) 20/18/15
Installation Position
Any
Locating Hole
Without
Maximum Flow
80 l/min
Maximum Leakage (Δp 350 Bar)
<1 l/min
Maximum Operating Pressure
350 bar
Nfpa Mounting
T3.5.1 R2-2002 D03
Porting Pattern
ISO 4401-03-02-0-05
Seal Material
FKM
Throttle Check Side
A
Valve Size
6
Version Code
2Q (Standard)
Weight
1.0 kg
1620 Old Apex Road
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