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The DBAW15BF2-2X/315-6EG24N9K4 pump safety block belongs to the DBA Pump Safety Blocks series from Bosch Rexroth and prevents over-pressure events in automated hydraulic circuits. It follows a pilot-operated valve principle so the main flow is controlled by a smaller pilot stage, reducing actuation force while maintaining stability. Solenoid actuation allows remote electrical triggering, powered by a 24 V DC coil that responds quickly to system commands. Connection to the control cabinet is made with an EN 175301-803 three-pole plug that provides two signal pins and a protective earth for safe wiring. Two switching positions let the operator shift between pressure retention and relief, and the P→T spool symbol indicates that pump flow is routed directly to tank when the solenoid is energized. The component is built to nominal size 15, and its SAE 3/4 flange interface under ISO 6162-1 permits direct attachment to standard manifold plates without extra adapters.
A factory setting of 315 bar limits system pressure at start-up, while the housing tolerates operating pressures up to 350 bar for added safety margin. Maximum flow reaches 300 l/min, supporting medium-capacity pumps without excessive pressure loss. The block handles common mineral oils and water-glycol blends labeled HL, HLP, HLPD, HVLP, HVLPD, and HFC, extending its use across mixed-fluid installations. Two ports simplify circuit layout by combining inlet and outlet in one body, and pump flange mounting positions the block directly on the pump to shorten piping runs. NBR seals contain the selected fluids and resist wear during continuous duty. A mass of 5.86 kg allows manual handling during maintenance while still providing the rigidity required for high-pressure service.
Actuation
Solenoid-Actuated
Electrical Connector
EN 175301-803, 3-pole (2+PE)
Factory Set Pressure
315 bar
Hydraulic Fluids
HL, HLP, HLPD, HVLP, HVLPD, HFC
Max Flow
300 l/min
Max Operating Pressure
350 bar
Mounting
Pump Flange Mount
Nominal Size
15
Number Of Ports
2
Port Interface
SAE 3/4 Flange (ISO 6162-1)
Seals
NBR
Spool Symbol
P → T
Supply Voltage
24 V DC
Switching Positions
2
Valve Principle
Pilot-Operated
Weight
5.86 kg
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