Proportional Directional Valve 4WRLD27W8-430LJ-4X/MPT/24ND6T - Bosch Rexroth R901544466

Not every machine has a dedicated pilot oil supply. This version of the size 27 proportional directional valve draws pilot oil internally from the main circuit and returns it internally, so only the main ports have to be piped up. The integrated digital axis controller then handles 600 l/min nominal flow at 270 bar.

Benefits

• Internal pilot oil supply and internal return - no additional X and Y lines have to be run to the valve.
• Digital axis controller on board, analogue ±10 V command value on the 12-pole connector (11 + PE).
• W8 spool symbol with 600 l/min nominal flow and up to 1850 l/min maximum flow.
• Internal spool position feedback for a repeatable spool position at 270 bar.
• ISO 4401-08-08-0-05 mounting pattern, 20.78 kg, NBR seals.

Technical data

Application

The internal pilot version suits conversions and retrofits where the machine has no pilot oil lines. It requires a system pressure that still feeds the pilot stage when the working pressure is low. With 600 l/min and 270 bar the working range matches the externally supplied sister version.

Manufacturer

Bosch Rexroth, product family 4WRLD, material number R901544466. Quote this material number for any enquiry or repeat order, because one type code can cover several versions.