Directional Spool Valve H-4WEH25HD6X/OF6EG220N9TK4 - Bosch Rexroth R900969808

The difference from its sister version lies in the pilot drain: here it runs internally while the supply stays external. In size 25 the H-4WEH25HD6X/OF6EG220N9TK4 switches up to 700 l/min at a weight of 18.71 kg.

Benefits

• Pilot oil supplied externally, drained internally, a separate pilot return line is not needed.
• 700 l/min flow at 350 bar maximum operating pressure on the ISO 4401-08-08-0-05 pattern.
• 220 VDC supply voltage through a 3-pole (2 + PE) plug to EN 175301-803.
• Spool symbol D with two switching positions across four ports in size 25.
• 18.71 kg weight, NBR seals, HL hydraulic fluid, UKCA conformity to SI2016/1091.

Applications

It is installed in control manifolds of large power units whose return is short and unloaded. Because the pilot drain runs inside, the pipework is reduced by one line per valve. Where a shared return header carries back pressure, the version with an external drain is the correct one.

Manufacturer

Bosch Rexroth, material number R900969808. Data on pilot pressure, switching times and installation dimensions are contained in data sheet RE 24751.