Hydraulic Directional Control Valve

PRODUCT TYPE: WEH Hydraulic Directional Control Valve, Size10 To Size32, High Pressure 35Mpa/5076PSI, Electro-hydraulic Directional Control Valve
APPLICATION Hydraulic Machines
CONNECTION TYPE: Subplate Connection
olenoid Valve: Directional Hydraulic Solenoid Valve
Spool Valve: Hydraulic Directional Spool Valve
Sandwich Check Valve: Pilot Operated Check Valve
Sandwich Flow Valve: Flow Throttle Valve
Solenoids(Coils): Valve Solenoids and Coils
– Hydraulic or electro-hydraulic optional
– AC or DC solenoids for WEH available
– Z2FS6 Switching time adjustment, optional

Directional Spool Valve WEH PDF

Hydraulic directional control valve of WEH series is an electro hydraulically directional operated valve is the union with 4WE6 directional hydraulic solenoid valve and large flow rate of hydraulic directional spool valve. The 4WE6 directional hydraulic solenoid valve uses for controlling the spool direction of the WH base. The advantage of electro hydraulically directional operated valve is much convenient operation control with high pressure and large flow rate.

Finotek manufactures the WEH series is separated production and tested, first test the WE6 and WH separately, then the WEH unit should be tested again, it is eliminate the leakage between the WEH installation gap and the valve inner leakage must passed to guarantee its working reliability.

Valve Ordering Code

Example (Normal code): “FT- 4WEH 16 E60/ 6EG24N Z5L ”
Explanation As Below:

FT-4WEH16 E60/ 6E
G24N Z5L    

(1) Producer code= FT
(2) No code= 280bar
  H= 350bar
(3) Size= 16
(4) No code= Spool return by springs 
  H= Spool return by hydraulic
(5) Spool symbol= E,G,F, please see the spool symbol form
(6) No code= With spring
(7) Series no.= 60 for Size 16
  O= Without spring
  OF= With detent, without spring
(8) 6E= 4WE6 directional valve
(9) DC voltage 24= G24V
  DC voltage 12= G12V
  AC voltage 220~230 50/60 Hz= W220V
  AC voltage 110 50/60 Hz= W110V
(10) With manual override= N
(11) No code= External pilot oil supply, external pilot of oil drain 
  E= Internal pilot oil supply, external pilot oil drain
  ET= internal pilot oil supply, internal pilot oil drain
  T= External pilot oil supply, Internal pilot oil drain

(12) No code= Without switching adjustment
  S= With meter-in control adjustment
  S2= With meter-out control adjustment
(13) Plug-in connection with indicator lamp= Z5L
(14) No code = Without Throttle insert
  B08= ThrottleØ0.8mm[0.031inch]
  B10= ThrottleØ1.0mm[0.039inch]
  B12= ThrottleØ1.2mm[0.047inch]
(15) No code= Without back pressure valve
  P4.5= With back pressure valve(cracking pre.4.5bar)
(16) No code= Without pressure reducing valve
  D1= With pressure reducing valve
(17) No code = NBR seals
  V = FKM seals
(18) No code = Black Galvanization
  B= Blue Powder Coating

WEH Valve Technical Information

Main Raw Materials: Casting Iron
Power: By hydraulic
Brand: Finotek or OEM
T Port If Pilot Oil External drain: 31.5Mpa
T Port If Pilot Oil Internal drain: DC=21Mpa; AC=16Mpa
Y Port If Pilot Oil External drain: DC=21Mpa; AC=16Mpa
Max. Flow Rate: 300L/min.
Media Temperature: -30C to +80(°C)
Available Voltaege:DC=12V, 24V ; AC=110V, 220V/50HZ

Voltage Tolerance: +10% to -15%
Switching Frequency: DC:15000Times/h; AC:7200Times/h
Oil Medium: Mineral oil as per DIN51 524, VDMA 24 568 or rapeseed oil, Viscosity 10 – 400 CST
Recommended Medium Filtration: ISO 4406 Standard, cleanliness class:20/18/15

WEH Valve Spool Symbols

Pilot Oil Supply Conversion

External supply: Remove the valve cover, convert the pin smaller head towards to main valve.
Internal supply: Rated the pin 180 degree, when the pin smaller head in opposite direction of external supply.
External drain: Remove the nut (On “1” location) and screw in the M6 plug
Internal: Screw out the M6 plug

Valve Installation Dimensions