Proportional Directional Valve 4WRZE16E3-150-7X/6EG24N9ETK31/A1M - Bosch Rexroth R900973977

Two details decide the choice inside the 4WRZ(E) series: the command signal and the routing of pilot oil. This variant works with plus/minus 10 V and feeds its pilot stage internally, with the pilot return staying inside the valve as well. At size 16 it meters 150 l/min and allows 460 l/min at the performance limit.

Benefits

• Command value plus/minus 10 V, direction included without extra enable logic.
• 150 l/min nominal flow at 350 bar operating pressure.
• Pilot oil in and out internally, no external pilot circuit needed.
• Spool symbol E3 with 3 switching positions and 4 ports.
• Concealed manual override for emergency operation and setup.
• 12.64 kg valve weight, mounts on any ISO 4401-07-07-0-05 subplate.

Applications

The combination of voltage command and internal pilot routing suits standard power units in forming and plastics processing. In mid position the E3 spool connects all four ports and relieves the cylinder. For axes that must be held at standstill, a closed centre spool is the better choice.

Manufacturer

Bosch Rexroth assigns material number R900973977 to this valve. The 2 manufacturer documents contain the characteristic curves and the complete installation dimensions.