Directional Spool Valve H-4WEH25HD6X/OF6EG24N9S2K4 - Bosch Rexroth R900966166

A main circuit with strongly fluctuating pressure disturbs the pilot stage as soon as the latter draws its oil from the main line. The H-4WEH25HD6X/OF6EG24N9S2K4 takes pilot oil from outside and drains it to the outside, at up to 700 l/min in size 25.

Benefits

• External pilot oil supply and external pilot oil return separate the pilot circuit completely.
• Spool symbol D in two switching positions across four ports.
• 700 l/min at a maximum operating pressure of 350 bar.
• 24 V DC solenoid actuation through a 3-pole connector (2 + PE) to EN 175301-803.
• 18.58 kg weight, NBR seals, connection diagram ISO 4401-08-08-0-05.

Application

Arrangements like this are found on presses and forging plants whose working pressure collapses during the cycle. A small auxiliary pump then feeds the pilot circuit at constant pressure.

Manufacturer

Bosch Rexroth lists the valve under material number R900966166 in product family H-4W.H.., data sheets RE 24751 and RE 07600-B.