Proportional Directional Valve 4WRZE10W8-50-7X/6EG24N9EK31/A1V - Bosch Rexroth R900977339

As a telescope extends, load conditions change with every metre of reach. The 4WRZE10W8-50-7X/6EG24N9EK31/A1V holds speed against that at 50 l/min rated flow and 315 bar maximum, and blocks at centre as soon as the command signal returns to zero.

Benefits

• Spool symbol W8 with blocked centre holds the telescope without actuation.
• 50 l/min rated flow, flow up to 170 l/min, operating limit 315 bar.
• Internal pilot oil supply with external pilot oil return, without a pressure reducing valve.
• Command value 10 V bipolar, 24 VDC supply through a 7-pole plug (6 + PE) to EN 175201-804.
• Concealed manual override, 8.66 kg, size 10 to ISO 4401-05-05-0-05, FKM seals.

Application

Telescopic extensions, outriggers and luffing gear on cranes and access platforms use this control. The concealed manual override serves for controlled retraction if actuation fails. Axes with greater demand run at 85 l/min rated flow.

Manufacturer

Bosch Rexroth, material number R900977339. Characteristic curves, installation dimensions and the port pattern are given in data sheet RE 29115 and in data sheet RE 07600-B.