Pressure Relief Valve DBW20B2-5X/180-6EG24N9K4E - Bosch Rexroth R901364252

Many standard power units in tool and fixture building run at 180 bar, because cylinders and fittings are dimensioned for it. A setting range of 4 to 180 bar reproduces that operating point with good resolution. The pilot-operated poppet valve discharges up to 400 l/min across the ISO 6264-08-13 subplate interface and weighs 5.4 kg.

Benefits

• Setting range 4 to 180 bar, matched to standard power units
• Pilot-operated poppet valve in size 25 rated for up to 400 l/min
• Maximum operating pressure 350 bar, leaving clear margin to the body limit
• Internal hexagon with protective cap, spool symbol B, two switching positions
• Solenoid actuation at 24 VDC, 3-pole connector (2 + PE) to EN 175301-803
• 5.4 kg mass, NBR seals for HL hydraulic fluid

Application

The valve is installed at the pump outlet of units feeding clamping cylinders, feed units and small presses. Because the setting range ends well below the permissible operating pressure, the spring works in a section of its curve that resolves well. The solenoid switches the circuit from the control system.

Manufacturer

Bosch Rexroth lists this pressure relief valve DBW20B2-5X/180-6EG24N9K4E under material number R901364252. Data sheets RE 25802 and RE 25802-B carry the characteristic curves, the installation dimensions and the subplate data. If the working pressure may be raised in a later extension, plan for a version with a wider setting range.