Pressure Relief Valve DBW52BP2-3X/315U6EG24NK4 - Bosch Rexroth R901071870

Shutting down a large press calls for pump pressure to drop at once without the lines hammering. The DBW52BP2-3X does both: it limits pressure to a setting between 4 and 315 bar and opens the bypass on a solenoid command, at flows up to 2000 l/min.

Benefits

• Flow up to 2000 l/min in size 52, so multi-pump power units are covered as well.
• Pressure adjustment range 4 to 315 bar through an internal hexagon, a protective cap guards the setting.
• A seat valve forms the pilot stage, so the closed valve seals with low leakage.
• Electrical unloading by 24 VDC at a 3-pole connector (2 + PE) to EN 175301-803, two switching positions.
• Spool symbol B, two ports, subplate mounting, weight 28.52 kg.

Applications

The valve protects power units of presses, rolling mills and test benches. The solenoid takes pump pressure away at standstill, which cuts idling losses and oil heating. NBR seals and hydraulic fluid class HL match ordinary mineral oil operation.

Manufacturer

Bosch Rexroth, material number R901071870. The type code DBW52BP2-3X/315U6EG24NK4 states size 52, component series 3X, an adjustment range to 315 bar and a 24 VDC solenoid.