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Bosch Rexroth | ZDR6DA1-4X75Y

ZDR6DA1-4X/75Y

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The Bosch Rexroth ZDR6DA1-4X/75Y is part of the ZDR Pressure Reducing Valves series. This valve comes with a rotary knob adjustment type and includes a check valve. It has a nominal size of 6 and is designed for installation in any position. The maximum flow rate is 50 liters per minute, while the input operating pressure can reach up to 315 bar. Its secondary pressure limit is set at 75 bar and the port T(y) allows a maximum back pressure of 160 bar. The valve utilizes an internal pilot oil supply with external return and drains the spring chamber externally via T(y). It features ISO 4406 cleanliness class 20/18/15 and a porting pattern compliant with ISO 4401-03-02-0-05. Mounting is achieved with four ISO 4762-M5-10.9 screws, and the seals are made from NBR material.

Technical Specifications

Adjustment Type
Rotary Knob

Check Valve
Included

Cleanliness Class
ISO 4406 20/18/15

Installation Position
Any

Max Flow
50 l/min

Max Operating Pressure (input)
315 bar

Mounting Screws
4x ISO 4762-M5-10.9

Nominal Size
6

Pilot Oil
Internal Supply, External Return

Port T(y) Max Back Pressure
160 bar

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

Pressure Gauge Port
G1/4

Pressure Reduction Port
A

Seal Material
NBR

Secondary Pressure Limit
75 bar

Spring Chamber Drain
External via T(Y)

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