R987385443 Bosch Rexroth 4WEH16HD7X/OF6EW110N9K4=CSA Directional valve

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

4/3-directional valve with pressure centering of the main control spool, type 4WEH…H

The main control spool in the main valve is kept in the zero position by pressurization of the two front faces. One centering bush rests on the housing and fixes the control spool position. By pressure relief of one front face, the main control spool is moved to the switching position. The unloaded control spool face displaces the returning pilot oil into channel Y (external) via the pilot control valve.

Pilot oil supply

Type 4WEH…E…

The pilot oil supply is implemented internally from channel P of the main valve. The pilot oil return is implemented externally - via channel Y - into the tank. In the subplate, port X is closed.

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: H: Hydraulic
• Piston symbol: J: 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: 24 V DC
• manual override: N9: with concealed manual override
• Pilot oil flow: E
• Pilot oil supply: internal
• Pilot oil return: external
• Switching time adjustment: without
• Electrical connection: K4: Without mating connector; connector DIN EN 175301-803
• Stroke setting: 12: Stroke setting on valve side B
• Throttle insert: B08: Throttle-Ø 0,8 mm Connection P
• Preload valve: without preload valve
• Pressure reducing valve: without Pressure reducing valve
• Seal material: NBR
• Ambient temperature range: -30 ... +50|°C
• Storage temperature range: -20 ... +70|°C
• Hydraulic fluid temperature range: -30 ... +80|°C