Bosch Rexroth | ZDR6DA2-4X210YV12
ZDR6DA2-4X/210YV/12
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The ZDR6DA2-4X/210YV/12 is a pressure reducing valve produced by Bosch Rexroth for the ZDR Pressure Reducing Valves series, intended to keep downstream pressure stable in hydraulic automation loops. This variant belongs to component series 4X and relies on mechanical actuation to move the control spool. It is built in nominal size 6, aligns with the CETOP D03 interface, and follows the ISO 4401-03-02-0-05 mounting pattern, allowing direct installation on standard subplates. A sandwich plate body lets the valve be stacked between directional blocks without extra piping. Pilot oil is taken internally and can be returned externally through port Y so regulation stays consistent when manifold backpressure varies. The adjustment mechanism is a sleeve with a hexagon head and a protective cap, giving maintenance staff a secure way to alter the setting while shielding the screw from debris.
The valve reduces pressure in port A to a preset secondary value of 210 bar while tolerating an inlet pressure up to 315 bar in version A. An integrated check valve permits unrestricted reverse flow, preventing pressure buildup when actuator movement changes direction. Flow capacity reaches 50 l/min, which suits medium-size cylinders and motors. Two switching positions shift the pilot stage to open or close the throttling gap as system demand changes. Counter pressure at port T can rise to 160 bar without upsetting the regulated outlet, making the unit suitable for circuits with elevated return-line pressure. FKM seals resist high temperature and aggressive media, extending service intervals and supporting reliable operation.
Technical Specifications
Adjustment Type
Sleeve With Hexagon And Protective Cap
Cetop Size
D03
Check Valve
Included
Component Series
4X
Connection Type
Sandwich Plate
Max Counter Pressure Port T(y)
160 bar
Max Flow
50 l/min
Max Operating Pressure (version A)
315 bar
Mounting Pattern
ISO 4401-03-02-0-05
Nominal Size
6
Pilot Oil Supply/return
Internal/External (Y)
Pressure Reduction Port
A
Seal Material
FKM (V)
Secondary Pressure Setting
210 bar
Switching Positions
2
Type Of Actuation
Mechanical
1620 Old Apex Road
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