Bosch Rexroth | DBAWR30BH2-1X200-6EG24N9K4
DBAWR30BH2-1X/200-6EG24N9K4
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The DBAWR30BH2-1X/200-6EG24N9K4 pump safety block is produced by Bosch Rexroth for the DBA Pump Safety Blocks series. It limits pump pressure and offers integrated unloading for hydraulic automation loops. Pressure is set through a hex sleeve with a cap that shields the adjustment screw. A built-in check valve stops reverse flow, and it cracks open when the differential reaches 0.5 bar. Flow switching is handled by a 6E spool directional valve that supports remote unloading commands. The required fluid cleanliness is ISO 4406 20/18/15 to preserve internal clearances. Installation can be in any orientation, simplifying manifold layout. A nominal size of 32 matches high-capacity lines, and the ISO 6162-2 porting pattern aligns with standard SAE flanges.
The block tolerates a maximum operating pressure of 350 bar, while the adjustable set point tops out at 200 bar. Port Y or t on the 6E element is limited to 210 bar, so downstream components must match that rating. Continuous flow capacity is 350 l/min, accommodating medium and large pumps. Pilot oil is supplied and returned internally, removing the need for external pilot hoses. The solenoid coil is rated for 24 V DC and actuates a normally open B-symbol spool. Total mass is 9.5 kg, which allows single-person handling during service.
Technical Specifications
Adjustment Type
Hex Sleeve With Cap (2)
Check Valve
Included (R)
Check Valve Cracking Pressure
0.5 bar
Directional Valve Type
Spool Valve (6E)
Hydraulic Cleanliness Class
ISO 4406 20/18/15
Installation Position
Any
Mass
9.5 kg
Max Flow
350 l/min
Max Operating Pressure (p)
350 bar
Max Pressure Port Y,t (6eg)
210 bar
Max Set Pressure
200 bar
Nominal Size
32
Pilot Oil Supply/return
Internal/Internal
Porting Pattern
ISO 6162-2
Solenoid Voltage
24 V DC
Symbol
B (Normally Open)
1620 Old Apex Road
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