EN 5.201.3/02.22
1
DESCRIPTION
HYDAC 2/2, 3/2, 3/3, 3/4, 4/2, 4/3 and 4/4
directional poppet valves of WSE 6 series
were directional valves for oil hydraulic
systems, which are used to open and
close ow paths. The valve operates by
oil-immersed solenoid. During this process,
the solenoid pushes the valve’s control
spool into the respective position to obtain
the desired ow path.
2/2, 3/2, 3/3, 3/4, 4/2, 4/3 and 4/4
Directional Poppet Valve
solenoid-operated, direct-acting
WSE 6
Nominal size 6
up to 25 l/min
up to 350 bar
CONTENTS
Description 1
Features 1
Model code 2
Spool types / symbols 3
Function 4
Section view 4
Technical data 4
Performance 5
Dimensions 6
Electrical connections 7
Manual overrides 7
Accessories 8
FEATURES
z Patented function principle
z Pressure-equalised design
z Seat-tight closing
z Hardened poppet-seat elements (piston)
z Interface according to DIN 24340 Form A6, ISO 4401-03
z Removable high-performance solenoid coil, no need to open the
hydraulic system during replacement
EN 5.201.3/02.22
2
MODEL CODE
4 WSE 6 E H01 – 24 D G /V / /
_
Ports
2, 3 or 4
Type
Directional poppet valve, direct-acting
Nominal size
6
Spool symbol
See page 3
Series
H01 = specied by the manufacturer
Rated voltage of the solenoid coil
1)
24 = 24 V DC
Type of voltage
D = DC voltage
Electrical connection (for details, see page 7)
G = device connector, DIN EN 175301-803
L = single leads
L02 = single leads with suppressor diode
N = device connector, Deutsch
N01 = device connector, Deutsch with suppressor diode
O = device connector, M12
U = device connector, Junior Timer
U01 = device connector, Junior Timer with suppressor diode
Sealing material
1)
/V = FKM (standard)
Manual override
Not specied = with concealed manual override (standard)
/M2 = with covered manual override
Orice insert
Not specied = no orice insert
/YXX : Y = port P, A, B, T
XX = diameter (e.g. 14 = 1.4 mm)
preferred series: 0.5 mm; 0.7 mm; 1 mm; 1.4 mm; 2 mm
Check valve
Not specied = no check valve
/RV = check valve in port P with a cracking pressure of 0.6 bar
1)
Other models on request
EN 5.201.3/02.22
3
SPOOL TYPES / SYMBOLS
2/2-DIRECTIONAL POPPET VALVES
Type Symbol
E2
BE2
E4
BE4
3/2-, 3/3- AND 3/4-DIRECTIONAL POPPET VALVES
Type Symbol
with intermediate position
X
C
Y-OF
E
E+H
To reach the fourth switching position, actuate both solenoids
simultaneously.
4/2-, 4/3- AND 4/4-DIRECTIONAL POPPET VALVES
Type Symbol
with intermediate position
X
C
E
H
U
E+H
J+M
J+M-2RV
M+J-2RV
Z+X-2RV
To reach the fourth switching position, actuate both solenoids
simultaneously.
EN 5.201.3/02.22
4
FUNCTION
The solenoid-operated directional
poppet valves of type WSE 6 are used
to control a ow. The valve design
is patented and consists of a valve
casing (1) and depending on the type,
one or more poppet-seat elements
(2). Depending on the type, the valve
is equipped with one or more return
springs (3) and with one or two pole
tubes (4) and solenoid coils (5) each.
The hydraulic control of the valve is
carried out through the actuation of the
valve spool by the use of solenoids (5).
A solenoid is a converter, which converts
electrical energy into mechanical energy.
The energized solenoid causes the
oil-immersed magnetic piston to make
a linear stroke movement. It uses the
guide rod (6) to move the poppet-seat
elements into the desired position. This
causes the nominal ow directions
between the respective ports to be
released or seat-tight closed.
The modular principle of the key
components enables a large variety of
switching congurations. Consequently
these valves can be used as a leak-free
alternative to spool valves. The special
grounded poppet-seat elements are
pressure-equalised and with it double-
tight, i.e. pressure reversals (within the
permitted port pressures) do not result in
undesired opening.
To obtain the valves’ optimum switching
capacity, the pressure-tight chamber
of the pole tube should always be lled
with oil. The poppet-seat element is
pushed back into the starting position by
the appropriate return spring after de-
energization of solenoid.
The manual override (7) enables
valve operation without energising the
solenoid.
TECHNICAL DATA
1)
General performance data
MTTF
d
: According to EN ISO 13849-1:2016
Table C1
Ambient temperature: [°C] -20 to +60
Installation position: No orientation restrictions
Weight: [kg] 1.7 with one solenoid;
2.2 with two solenoids
Material: Valve casing: Steel
Pole tube: Steel
Coil casing: Steel
Name plate: Aluminium
Surface coating: Valve casing: Phosphate plated
Pole tube: Zn-coating
Coil casing: ZnNi-coating
Hydraulic specications
Operating pressure: [bar] Port A, B, P: p
max
= 350
Port T: p
max
= 70
Nominal ow: [l/min] 25
Operating uid: Hydraulic oil to DIN 51524 Part 1, 2 and 3
Media operating temperature range: [°C] -20 to +80
Viscosity range: [mm²/s] 10 to 500
Permitted contamination level
of operating uid:
Class 20/18/15 according to ISO 4406
Max. switching frequency: [1/h] 3,600
Manual override: Up to approx. 50 bar tank pressure available
Sealing material: FKM
Electrical specications
Switching time: [ms] See table, page 4
Type of voltage: DC
Rated voltage: [V] 24
Voltage tolerance: [%] ±10
Nominal power: [W] 30
Duty cycle: [%] 100
Max. surface temperature of the coil: [°C] 150
Protection class according to DIN EN 60529: with electrical connection “G” IP65
2)
1)
see “Conditions and Instructions for Valves” in brochure 53.000
2)
if installed correctly
SECTION VIEW
Non-return valve
Closes port P to prevent reverse oil ow.
Orice insert
Used to reduce nominal ows that are too high and outside of
the valve’s operating limits.
EN 5.201.3/02.22
5
PERFORMANCE
Pressure drop
measured at ν = 30 mm²/s
T= 45 °C
Pressure drop Δp [bar]
Flow rate Q [l/min]
Performance limits
Switch-on current I
ON
≤ 0.7 x I
N
Switch-o current I
OFF
≥ 0.07 x I
N
Pressure p [bar]
Flow rate Q [l/min]
Performance assignment to the associated spools:
Ports Symbol
Pressure drop Switching times
a b 0 (+) On [ms]
O
[ms]
P-A P-T A-T B-T P-A P-B A-T P-A P-B P-T A-T B-T 0.7 x I
N
1.0 x I
N
2 E2 2 110 50 25
2 BE2 1 110 50 25
2 E4 2 60 40 25
2 BE4 1 60 40 25
3 X 2 1 60 40 25
3 C 2 1 110 50 25
3 Y-OF 3 2 60 40 –
3 E 2 1 60 40 25
3 E+H 2 1 (2) (3) (1) 60 40 25
4 X 2 1 2 1 110 50 25
4 C 2 1 2 1 110 50 25
4 E 2 1 2 1 90 45 25
4 H 2 1 2 1 3 3 2 3 3 60 40 25
4 U 2 2 4 2 4
110 (a)
90 (b)
50 (a)
45 (b)
25
4 E+H 2 1 2 1 (2) (2) (1) (1) (1) 90 45 25
4 J+M 2 1 2 1 (2) (2) 1 1 60 40 25
4 J+M-2RV 4 1 4 1 (4) (4) 1 1 60 40 25
4 M+J-2RV 4 1 4 1 4 4 (1) (1) 110 50 25
4 Z+X-2RV 2 1 3 4 3 (4) (2) 1
110 (a)
60 (b)
50 (a)
40 (b)
25
The performance limits were determined with solenoids at operating temperature and 10% low voltage.
The specied performance limits are applicable for operation with two directions of ow. The performance capacities may be
lower when there is only one ow direction.
EN 5.201.3/02.22
6
Manual override
Push pin
Clamping length
to ISO 7790
Side view
Type 4/2-X Type 4/2-C
DIMENSIONS
With one solenoid
2/2, 3/2
With one solenoid
4/2
With two solenoids
3/3, 3/4, 4/3, 4/4
Interface according to ISO 4401-03-02-0-05 (CETOP 3)
Mounting screws:
(not included in delivery)
DIN EN ISO 4762 – M5 x 50 – 10.9
Tightening torque: 6 Nm - 7 Nm
EN 5.201.3/02.22
7
ELECTRICAL CONNECTIONS
G
Device
connector
DIN EN
175301-803 A
A
Ø 45
50.5
z IP65
z A = 28 mm for DC
(DG)
L
2 strands
31
L
z IP65
z Standard strands
length
L = 457 mm
z Optional with
suppressor diode
N
Device
connector,
Deutsch
(DT04-2P)
41
z IP65 / IP67
z Optional with
suppressor diode
O
Device
connector
M12
56
z IP65
z With yellow LED as
operation indicator
z Pin assignment
U
Device
connector
Junior Timer
(axial)
40
z IP65
z Optional with
suppressor diode
Other models on request
MANUAL OVERRIDES
Standard
with
concealed
manual
override
Ø 5
68.2*
Operation
with tool
M2
with
covered
manual
override
78.6*
Manual
override
covered,
operation
only possible
after
disassembly
of cap
* Dimensions up to valve casing
In case of emergency, the valve can also be operated
manually. There are dierent forms of manual override
available.
The tank pressure should not exceed 50 bar. If the tank
pressure is higher, the force required to operate the manual
override increases accordingly.
For valves with two solenoids, simultaneous operation of both
manual overrides is not permitted (with the exception of valves
with four switching positions).
EN 5.201.3/02.22
8
HYDAC Fluidtechnik GmbH
Justus-von-Liebig-Str.
D-66280 Sulzbach/Saar
Tel.: 0 68 97 /509-01
Fax: 0 68 97 /509-598
E-mail: valves@hydac.com
Note
The information in this brochure
relates to the operating conditions and
applications described. For applications
not described, please contact the
relevant technical department.
All technical details are subject to
change without notice.
ACCESSORIES
Designation Part no.
Seal kits (4-part set) 9.25 x 1.78 80 Sh FKM 3120269
Mounting screws (4 pcs) DIN EN ISO 4762 - M5 x 50 - 10.9 4312231
Solenoid coils
COIL 24DG -50-2345 -S 4244171
COIL 24DN -50-2345 -S 4244172
COIL 24DO -50-2345 -S 4250885
COIL 24DU -50-2345 -S 4250892
Seal kit for solenoid coil
Nut open, O-ring 4317299
Nut with cap, O-ring 4317302
Connector
Z4 standard 2-pole without PE 394287
Z4L incl. LED 394285
Orice insert Orice for WSE 6 H01 4371106
Ckeck valve NRV for WSE 6 H01 4371006