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Bosch Rexroth | DR20-4-5X315YM12

DR20-4-5X/315YM/12

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The Bosch Rexroth DR20-4-5X/315YM/12 is part of the DR Pressure Reducing Valves series. This valve features a rotary knob adjustment type and operates based on a pilot-operated principle. It is designed for installation in any position and includes a main port thread size of 1 5/16-12 UN. The maximum operating pressure and maximum counter pressure at port Y are both rated at 350 bar. Its set pressure rating is 315 bar, and the valve supports a maximum flow of 300 liters per minute when threaded. The unit uses internal pilot oil supply and external pilot oil return through port Y, with both port Y and the pressure gauge port using a 7/16-20 UNF thread. The seal material is NBR, cleanliness class is ISO 4406 20/18/15, and the size is designated as NG25.

Technical Specifications

Adjustment Type
Rotary Knob

Check Valve
None

Cleanliness Class
ISO 4406 20/18/15

Installation Position
Any

Main Port Thread
1 5/16-12 UN

Max Counter Pressure (port Y)
350 bar

Max Flow (threaded)
300 l/min

Max Operating Pressure
350 bar

Operating Principle
Pilot-Operated

Pilot Oil Return
External (Y)

Pilot Oil Supply
Internal

Port Y Thread
7/16-20 UNF

Pressure Gauge Port
7/16-20 UNF

Seal Material
NBR

Set Pressure Rating
315 bar

Size (ng)
25

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