Bosch Rexroth | DAW20B2-5X315-17Y6EG24N9K4
DAW20B2-5X/315-17Y6EG24N9K4
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The DAW20B2-5X/315-17Y6EG24N9K4 pressure cut-off valve belongs to the DA Pressure Cut-Off Valves series and is manufactured by Bosch Rexroth for hydraulic automation where flow must stop at a set pressure. It accepts mineral oil classified HL or HLP in accordance with DIN 51524, ensuring compatibility with standard hydraulic fluids. Installation is on a subplate, permitting quick replacement without disturbing fixed pipework. The nominal size is 25, establishing the internal flow path dimensions. A maximum operating pressure of 315 bar at ports P and A supports high-pressure circuits. External pilot oil return through port Y keeps pilot drainage separate from the main line. The device changes state when pressure falls 17 % below the cut-off level, providing a defined switching pressure differential. For nominal size 25 the maximum flow is 120 l/min, matching medium flow applications.
The electrical connection follows DIN EN 175301-803, allowing standardized plug-in wiring. A 24 V DC solenoid moves the control spool when energized. The directional valve size is 6 so the pilot stage integrates with size 6 manifolds. A concealed manual override identified by code N9 allows manual actuation during commissioning or in the event of power loss. The mating connector is not included under option K4, giving installers freedom to choose cable orientation. Cleanliness class 20/18/15 per ISO 4406 sets the filtration level required for reliable operation. The valve can be mounted in any position, simplifying layout in crowded machinery. Maximum pressure at port T or Y is 100 bar, protecting the tank return path. The assembly weighs 9.2 kg for nominal size 25, which informs manifold support calculations.
Technical Specifications
Cleanliness Class (iso 4406)
20/18/15
Directional Valve Size
6
Electrical Connection
DIN EN 175301-803
Hydraulic Fluid
Mineral Oil (HL, HLP) (DIN 51524)
Installation Position
Any
Manual Override
Concealed (N9)
Mating Connector
Not Included (K4)
Max Operating Pressure (p, A)
315 bar
Max Pressure (t, Y)
100 bar
Maximum Flow (size 25, 17)
120 l/min
Mounting Type
Subplate
Nominal Size
25
Pilot Oil Return
External (Y)
Solenoid Voltage
24 V DC
Switching Pressure Differential
17%
Weight (size 25, Daw)
9.2 kg
1620 Old Apex Road
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