R978919919 Bosch Rexroth 4WEH16HD7X/OF6EW110N9SDK25L/V Directional valve

Code: R978919919

Directional spool valve Series 4WEH

The valve type WEH is a directional spool valve with electro-hydraulic actuation. They control the start, stop and direction of a flow.

Pilot oil supply

Type 4WEH…

The pilot oil supply is implemented externally - via channel X - from a separate pressure supply. The pilot oil return is implemented externally - via channel Y - into the tank.

Features

für Plattenaufbau
Lage der Anschlüsse nach ISO 4401 und NFPA T3.5.1 R2
Anschlussplatten nach Datenblättern RD 45054 bis RD 45060– Induktive Stellungsschalter und Näherungssensoren (kontakt- und berührungslos), siehe RD 24830

Technical Details

Type of actuation: Electro-hydraulic
Working pressure max.: 280|bar
4-way version
Size: NG16
Spool return in the main valve: By means of springs
Piston symbol: Q: 3 spool positions
Component series: 7X
Control spool return in the pilot control valve with 2 spool positions and 2 solenoids: No code: with spring return
Pilot control valve: 6E: High-power valve (RD 23178)
Voltage: 110 V AC/DC
manual override: N9: with concealed manual override
Pilot oil flow: No code
Pilot oil supply: external
Pilot oil return: external
Switching time adjustment: S2: as discharge control
Electrical connection: K4: Without mating connector; connector DIN EN 175301-803
Throttle insert: without
Preload valve: without preload valve
Pressure reducing valve: without Pressure reducing valve
Seal material: FKM
Ambient temperature range: -30 ... +50|°C
Storage temperature range: -20 ... +70|°C
Hydraulic fluid temperature range: -20 ... +80|°C