Pressure Relief Valve DBW52BF2-3X/180-U6EG24N9K4E - Bosch Rexroth R901411099

A power unit that has to idle without pressure between two cycles needs a valve able to send the full pump flow back to tank on command. The DBW52 in size 52 limits pressure across a range of 3.9 to 180 bar and unloads up to 1500 l/min through its built-on directional spool valve.

Benefits

• Solenoid unloading puts the power unit into pressureless circulation, driven with 24 VDC through a 3-pole connector (2 + PE) to EN 175301-803.
• Rated flow of 1500 l/min matches pump units in the upper power class.
• Adjustment range of 3.9 to 180 bar at a permissible operating pressure of 315 bar.
• Poppet seat main stage keeps leakage low even during long holding phases.
• Internal hexagon with a protective cap secures the setting against accidental turning.
• Flange connection in size 52, CE conformity, mass 28.9 kg.

Applications

It is typically fitted in large pump units of presses, rolling mills and hydro power plants where no pressure should stand between cycles. The flange connection takes the 1500 l/min without extra pipework. Plan a load-bearing mounting face for the 28.9 kg assembly.

Manufacturer

Bosch Rexroth builds this valve under material number R901411099. Quote that number when ordering and keep it in the spare parts list of the machine.