R901253334 Bosch Rexroth H-4WEH25HD6X/OF6EG125N9TK4QMAG24 Directional valve

Code: R901253334

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.

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…

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.: 350|bar
4-way version
Size: NG25
Spool return in the main valve: H: Hydraulic
Piston symbol: Z: 2 spool positions
Component series: 6X
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: No code
Pilot oil supply: external
Pilot oil return: external
Switching time adjustment: without
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: NBR
CSA: Approval according to CSA C22.2 No. 139-13
Ambient temperature range: -30... +50|°C
Storage temperature range: -20... +70|°C
Hydraulic fluid temperature range: -30... +80|°C

More information:


Working pressure max. (bar):	350 bar
Working pressure max. (PSI):	5000 PSI
Size:	NG25
Voltage:	12 V DC5
Clamping area min.:	12 V DC5
H:	H-4WEH25HD6X/OF6EG125N9TK4QMAG24
Schallpegel dBA1:	überwachte Schaltstellung „a“
Vorspannungsklasse:	ohne Vorspannventil