Pressure Relief Valve DBW20A2-5X/330-6EG24N9K4E - Bosch Rexroth R901523498

A setting range up to 330 bar sits close to the maximum operating pressure of 350 bar, so little margin remains to the design limit of the machine. The valve carries spool symbol A, works pilot-operated in poppet seat design and is adjusted on the internal hexagon under the protective cap. Up to 400 l/min discharge across the ISO 6264-08-13 subplate interface.

Benefits

• Setting range 4 to 330 bar at a maximum operating pressure of 350 bar
• Spool symbol A with two switching positions and two ports
• Pilot-operated poppet valve in size 25 rated for 400 l/min
• Subplate mounting to ISO 6264-08-13, internal hexagon with protective cap
• Solenoid actuation at 24 VDC, 3-pole connector (2 + PE) to EN 175301-803
• 5.3 kg mass, NBR seals and HL hydraulic fluid

Application

Presses and clamping systems working above 300 bar are the typical field for this valve. Because the setting range reaches 330 bar, the cut-off pressure can be trimmed without changing the pressure spring. Poppet seat design keeps leakage low in the closed position, which limits heat build-up at high pressures.

Manufacturer

Bosch Rexroth lists this pressure relief valve DBW20A2-5X/330-6EG24N9K4E under material number R901523498. Data sheets RE 25802 and RE 25802-B carry the characteristic curves, the installation dimensions and the subplate data. Spool symbol A differs from the B versions, so a look at the circuit diagram pays off before ordering.