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Bosch Rexroth | ZDR6DA1-4X25Y12

ZDR6DA1-4X/25Y/12

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The Bosch Rexroth ZDR6DA1-4X/25Y/12 is part of the ZDR Pressure Reducing Valves series. This direct operated valve features a rotary knob adjustment type and a built-in check valve. It supports maximum operating pressures up to 315 bar, with a secondary pressure limit of 25 bar and a counter pressure max at T(y) of 160 bar. The valve is designed for a maximum flow rate of 50 liters per minute and fits a nominal size 6. Installation position is flexible and can be in any orientation. It meets cleanliness class ISO 4406 20/18/15 and uses NBR as its seal material. Mounting follows the ISO 4401-03-02-0-05 pattern, with an external pilot oil return and leakage oil drain via T(Y), while pilot oil supply is internal.

Technical Specifications

Adjustment Type
Rotary Knob

Check Valve
With

Cleanliness Class
ISO 4406 20/18/15

Counter Pressure Max. At T(y)
160 bar

Design
Direct Operated

Installation Position
Any

Leakage Oil Drain
External Via T(Y)

Maximum Flow
50 l/min

Maximum Operating Pressure
315 bar

Mounting Pattern
ISO 4401-03-02-0-05

Nominal Size
6

Pilot Oil Return
External

Pilot Oil Supply
Internal

Pressure Reduction Channel
A

Seal Material
NBR

Secondary Pressure Max.
25 bar

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