Ponar WEH22 Series User manual

09.2017
WK
460 110
Type WEH22 WK 460 110 09.2017
dm /min
3
- 1 -
APPLICATION
up to 35 MPa up to 450
Dire tional spool valve type WEH22
ele tro-hydrauli ally operated
NS22
D
DD
DA
AA
AT
TT
TA
AA
A S
SS
SH
HH
HE
EE
EE
EE
ET
TT
T -
--
- O
OO
OP
PP
PE
EE
ERA
RARA
RAT
TT
TI
II
IO
OO
ON
N N
N MA
MAMA
MANUA
NUANUA
NUAL
LL
L
Directional spool valves type WEH22
WEH22 WEH22
WEH22 electro-
hydraulically operated are intended for change in
direction of fluid flow in a system and thus it allows
to change direction of movement of a receiver -
mostly piston rod of a cylinder or hydraulic motor as
well to use functions: on and off . These directional
spool valves are used for subplate mounting in any
position in a hydraulic system.
DESCRIPTION OF OPERATION
Main bore and annular ports
P
PP
P
,
T
TT
T
,
A
AA
A
,
B
BB
B
are made in the
housing (1) and connected to its subplate connection.
Directional valve is switched by shifting the spool (2) into
one end position. Various control functions are
dependent on the spool (2) which affects the change in
configuration of connections among ports P
PP
P, T
TT
T, A
AA
A, B
BB
B in
the housing (1). The spool (2) is shifted from its neutral
position by affecting pressure of hydraulic fluid supplied
via pilot valve (4) into one chamber of caps (3). The pilot
valve (4) - type WE6
WE6WE6
WE6 is operated by means of
solenoids (5). In case of failure, the pilot valve (4) may be
shifted manually by means of manual overrides (6). The
spool (2) is centered in neutral position by means of
springs (7) - version 4WEH22…/ or may be
hydraulically operated by the fluid pressure from the
pilot valve (4) - version 4WEH22H
HH
H / - for 3-position
directional valves the centering is possible by means of
the sleeve (8). Sealing of the directional valve to a
subplate is secured by sealing rings.
H-4WEH22E13/G24NZ4 H-4WEH22HE13/G24NZ4
T
TT
TP
PP
P
A
AA
AB
BB
B
X
XX
XY
YY
Y
a
b
1
23
45
6
7
T
TT
TP
PP
P
A
AA
AB
BB
B
X
XX
XY
YY
Y
L
ab
8
The product
The productThe product
The product is complied with the regulations of
is complied with the regulations ofis complied with the regulations of
is complied with the regulations of
directive
directivedirective
directive 2014/35/UE
2014/35/UE 2014/35/UE
2014/35/UE

Type WEH22
WK 460 110 09.2017 - 2 -
DESCRIPTION OF OPERATION
TECHNICAL DATA
P
PP
Port
ortort
orts A, B, P
s A, B, Ps A, B, P
s A, B, P
• version H
H H
H4
4 4
4 W
WW
WE
EE
EH
HH
H2
22
22...
2...2...
2.../..
/../..
/.. . 3
3 3
35
5 5
5 M
MM
MP
PP
Pa
aa
a
• version 4
4 4
4 W
WW
WE
EE
EH
HH
H2
22
22...
2...2...
2.../...
/.../...
/... 28
28 28
28 M
MM
MP
PP
Pa
aa
a
P
P P
Port
ort ort
ort T
TT
T
• pilot fluid return Y- e
Y- e Y- e
Y- exter
xterxter
xtern
nn
na
aa
al
ll
l 2
22
25
5 5
5 M
MM
MP
PP
Pa
aa
a
•pilot fluid return Y-
Y- Y-
Y-i
ii
in
nn
ntern
terntern
terna
aa
al
ll
l 2
22
21
1 1
1 M
MM
MP
PP
Pa
aa
a
(2-position and 3-position directional valve
spring centred only, on 3-position version
hydraulically centred with Y - internal impossible)
Max
MaxMax
Max o
oo
opera
perapera
perat
tt
ti
ii
ing
ngng
ng pre
prepre
pres
ss
ss
ss
sure
ureure
ure
Max
MaxMax
Max c
c c
co
oo
on
nn
ntr
trtr
tro
oo
ol
ll
l pre
prepre
pres
ss
ss
ss
sure
ureure
ure
2
22
25
5 5
5 M
MM
MP
PP
Pa
aa
a
H
HH
Hydra
ydraydra
ydrau
uu
ul
ll
lic
icic
ic f
ff
fl
ll
lu
uu
ui
ii
id
dd
d
Pilot fluid supply X
XX
X-exter
-exter-exter
-extern
nn
na
aa
al
ll
l
•3-position directional valve 0,8 MPa
• 2-position directional valve spring positioned 1,0 MPa
• 2-position directional valvehydraulically positioned 0,5 MPa
M
MM
Mi
ii
in
nn
n c
c c
co
oo
on
nn
ntr
trtr
tro
oo
ol
ll
l pre
prepre
pres
ss
ss
ss
sure
ureure
ure
Pilot fluid supply X-
X-X-
X- i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l
(when pre-load valve applied or when flow rate
is suitably high)
•version 4
4 4
4 W
WW
WE
EE
EH
HH
H2
22
22
22
2 ... with spools G
GG
G , H
HH
H , F
FF
F , S
SS
S , T
TT
T 0,45 MPa
•version H
HH
H-
--
-4
4 4
4 W
WW
WE
EE
EH
HH
H2
22
22
22
2 .../... D
DD
D1
11
1 ... with spools G
GG
G , H
HH
H , F
FF
F , S
SS
S , T
TT
T 0,7 MPa
Fluid temperature range (in a tank)
Ambient temperature range
recommended
max
Re
ReRe
Req
qq
qu
uu
uired f
ired fired f
ired fl
ll
lu
uu
uid c
id cid c
id cle
lele
lea
aa
an
nn
nl
ll
li
ii
ine
nene
ness c
ss css c
ss cl
ll
la
aa
ass
ssss
ss I
I I
IS
SS
SO
O O
O 4
44
44
44
40
00
06
66
6 ; cl
cl cl
cla
aa
ass
ss ss
ss 2
22
20
00
0/
//
/1
11
18
88
8/
//
/1
11
15
55
5
o
o
40 C up to 55 C
o
o
-20 C up to +70 C
o
o
- 20 C up to +50 C
Hydraulic fluid mineral oil
Nominal fluid viscosity 37mm /s
Viscosity range 2,8 do 380 mm /s
2
2
...WEH22.../.. .S
.S.S
.S ... ...WEH22.../...
1
11
11
11
1 ... ...4WEH22.../...
1
11
18.
8.8.
8. ..
...WEH22.../.. .
..
.M
MM
M ...
910 11 12
Directional spool valves may be provided wit
h the
pilot choke adjustment (9) as well as with accessories
such as: spool position sensor (10), spool stroke
limiter (11),
spool
end position monitor (12).
Accessories
may be mounted depending on version of directional
valve like given on pages 15 - 27.

Type WEH22 WK 460 110 09.2017- 3 -
T
TT
To
oo
ot
tt
tal
alal
al t
tt
tim
imim
ime
ee
e o
oo
of
ff
f s
ss
sp
pp
po
oo
oo
oo
ol
ll
l s
ss
sh
hh
hi
ii
if
ff
ft
tt
ti
ii
ing
ngng
ng fr
frfr
fro
oo
om
m m
m ne
nene
neu
uu
utra
tratra
tral
ll
l t
tt
to
oo
o en
enen
end
dd
d
p
pp
po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n
3-position spring centred directional valve
at pilot pressure p st = 5 MPa 70 ms
p st =15 MPa 60 ms
p st =25 MPa 55 ms
3-position hydraulically centred directional valve
• solenoid a
aa
a operation
at pilot pressure p st = 5 MPa 65 ms
p st = 15 MPa 60 ms
p st = 25 MPa 55 ms
• solenoid b
bb
b operation
at pilot pressure p st = 5 MPa 70 ms
p st = 15 MPa 65 ms
p st = 25 MPa 55 ms
2-position directional valve
at pilot pressure p st = 5 MPa 110 ms
p st = 15 MPa 90 ms
p st = 25 MPa 75 ms
T
TT
To
oo
ot
tt
tal
alal
al t
tt
tim
imim
ime
ee
e o
oo
of
ff
f s
ss
sp
pp
po
oo
oo
oo
ol
ll
l s
ss
sh
hh
hi
ii
if
ff
ft
tt
ti
ii
ing
ngng
ng fr
frfr
fro
oo
om
m m
m en
enen
end
dd
d t
tt
to
oo
o
ne
nene
neu
uu
utra
tratra
tral
ll
l p
pp
po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n
3-position spreing centred directional valve
at pilot pressure p st = 5; 15; 25 MPa 60 ms
3-position hydraulically centred directional valve
• solenoid a
aa
a operation
at pilot pressure p st = 5 MPa 35 ms
p st = 15 MPa 30 ms
p st = 25 MPa 25 ms
• solenoid b
bb
b operation
at pilot pressure p st = 5 MPa 40 ms
p st = 15 MPa 35 ms
p st = 25 MPa 25 ms
2-position directional valve
at pilot pressure p st = 5 MPa 80 ms
p st = 15 MPa 50 ms
p st = 25 MPa 45 ms
F
FF
Fl
ll
lu
uu
ui
ii
id
dd
d v
vv
vo
oo
ol
ll
lume
umeume
ume req
req req
requ
uu
uired
iredired
ired t
tt
to
oo
o o
oo
opera
perapera
perat
tt
te
ee
e t
tt
the
hehe
he v
vv
val
alal
alv
vv
ve
ee
e
3-position spring centered directional valve 9,65 cm
3-position hydraulically centered directional valve
• from 0
00
0 (neutral) to operated position a
aa
a 5,0 cm
• from 0
00
0 (neutral) to operated position b
bb
b 9,65 cm
• from operated position a
aa
a to 0
00
0 (neutral) position 4,6 cm
• from operated position b
bb
b to 0
00
0 (neutral) postion 4,6 cm
2-position directional spool valve 19,3 cm
3
3
3
3
3
3
type of spool - diagrams like given on page 8
spool V
VV
V
spool Q
Q Q
Q
Fl
FlFl
Flo
oo
ow cr
w crw cr
w cro
oo
oss sect
ss sectss sect
ss secti
ii
io
oo
on
n n
n i
ii
in
n n
n t
tt
the ce
he cehe ce
he cen
nn
ntra
tratra
tral p
l pl p
l po
oo
os
ss
sit
itit
iti
ii
io
oo
on
nn
n
16 % nominal section
spool W
WW
W
16 % nominal section
3 % nominal section
TECHNICAL DATA

Type WEH22
WK 460 110 09.2017 - 4 -
INSTALLATION AND OPERATION REQUIREMENTS
TECHNICAL DATA
Supply voltage tolerance ±10%
Power requirement (DC) 3
33
30
00
0 W
Temperature of solenoid coil max 150 C
o
P
PP
Pil
ilil
ilo
oo
ot
t t
t v
vv
val
alal
alv
vv
ve
ee
e
Type of pilot valve
• for 3-position spring centered main
directional valve
• for 2-position spring centered main
directional valve ( a
aa
a , 0
00
0 )
• for 2-position spring centered main
directional valve ( 0
00
0 , b
bb
b )
• for 3-position hydraulically centered main
directional valve
• for 2-position hydraulically centered main
directional valve ( a
aa
a , 0
00
0 )
• for 2-position hydraulically centered main
directional valve ( 0
00
0 , b
bb
b )
• for 2-position main directional valve
max 21 kg
In
InIn
Inducti
ductiducti
ductiv
vv
ve sp
e spe sp
e spo
oo
oo
oo
ol p
l pl p
l po
oo
ositi
sitisiti
sitio
oo
on sens
n sensn sens
n sens ors
orsors
ors
S
SS
Supply
upplyupply
upply v
vv
vo
oo
oltage
ltageltage
ltage 1
11
10
0 0
0 -
- -
- 3
33
30
00
0V
VV
V DC
DC DC
DC
Max
Max Max
Max l
l l
lo
oo
oad c
ad cad c
ad current
urrenturrent
urrent 2
22
20
00
00
0 0
0 mA
mAmA
mA
Weight
plug with M
MM
M1
11
12 x
2 x 2 x
2 x 1
1 1
1 internal
internal internal
internal thread
threadthread
thread , fema
fema fema
female pl
le plle pl
le plug
ugug
ug
configuration of connection according to P
PP
PN-
N-N-
N-E
EE
EN-
N-N-
N-6
66
61
11
10
00
07
77
76
6 6
6 -
--
-2
22
2-
--
-1
11
10
00
01
11
1
Ty
Ty Ty
Type
pe pe
pe o
oo
of sens
f sensf sens
f sens ors
orsors
ors tw
tw tw
two
oo
o P
P P
PN
NN
NP
P P
P indu
induindu
inducti
cticti
ctiv
vv
ve pr
e pre pr
e pro
oo
oximity s
ximity sximity s
ximity s ens
ensens
ensors
orsors
ors :
n
n n
nor
oror
ormall
mallmall
mally cl
y cly cl
y clo
oo
osed
sed sed
sed - N
- N- N
- NC
CC
C (contact breaker) +
n
nn
nor
oror
ormall
mallmall
mally
y y
y o
oo
opene
penepene
pened
dd
d - NO
NONO
NO (contact maker)
E
EE
External di
xternal dixternal di
xternal di amet
ametamet
ameter
er er
er o
oo
of c
f cf c
f co
oo
onduct
nductnduct
nductor
oror
or
sensor with M
MM
M1
11
12x
2x2x
2x1
1 1
1 external t
external texternal t
external t hread
hreadhread
hread , male
malemale
male c
c c
co
oo
onnect
nnectnnect
nnecti
ii
io
oo
on
nn
n
φ
φφ
φ 2,
2,2,
2,5
55
5 - 6
6 6
6,5
,5,5
,5 mm
mm mm
mm ( P
PP
PG
GG
G7
77
7 )
Degre
Degre Degre
Degree
e e
e o
oo
of pr
f prf pr
f pro
oo
otecti
tectitecti
tectio
oo
on
nn
n I
I I
IP
P P
P 6
66
67
77
7
C
C C
Co
oo
on
nn
nnec
necnec
necti
titi
tio
oo
on
n n
n type o
type otype o
type of c
f cf c
f co
oo
ond
ndnd
nduc
ucuc
uct
tt
tor
oror
or
C
C C
Co
oo
onnect
nnectnnect
nnecti
ii
io
oo
on typ
n typn typ
n type
e e
e o
oo
of sens
f sensf sens
f sens or
oror
or
4WE6 J
J J
J ...
4WE6 J
JJ
JA
AA
A ...
4WE6 J
JJ
JB
BB
B ...
4WE6 M
MM
M ...
4WE6 MA
MAMA
MA ...
4WE6 MB
MBMB
MB ...
4WE6 D
D D
D ... or 4WE6 D
DD
D ... / O
OO
O ... or 4WE6 D
DD
D ... / O
OO
OF
FF
F ...
Degre
DegreDegre
Degree
e e
e o
oo
of pr
f prf pr
f pro
oo
otecti
tectitecti
tectio
oo
on
nn
n I
I I
IP
P P
P 6
66
65
55
5
DC
DCDC
DC
2
22
23
33
30
00
0V
VV
V-
--
- 50Hz 2
22
22
22
20
00
0V
VV
V - 50Hz 1
11
11
11
10
00
0V
VV
V - 50Hz
1
11
12
22
2V
VV
V 2
22
24
44
4V
VV
V 1
11
11
11
10
00
0V
VV
V2
22
23
33
30
00
0V
VV
V-
--
- 50Hz
AC
AC AC
AC
direct supply
AC
ACAC
AC
(plug-in connector with rectifier)
S
SS
Supply
upplyupply
upply v
vv
vo
oo
oltage
ltage ltage
ltage o
oo
of s
f sf s
f so
oo
olen
lenlen
leno
oo
oids
idsids
ids
1.
1.1.
1.
Only fully functional and operational valve, properly
Only fully functional and operational valve, properly Only fully functional and operational valve, properly
Only fully functional and operational valve, properly
connected to electrical installation must
connected to electrical installation must connected to electrical installation must
connected to electrical installation must directional
directional directional
directional be
be be
be
used.
used.used.
used. Connecting or disconnecting the valve to an
Connecting or disconnecting the valve to an Connecting or disconnecting the valve to an
Connecting or disconnecting the valve to an
electrical installation must only be carried out by
electrical installation must only be carried out by electrical installation must only be carried out by
electrical installation must only be carried out by
qualified personnel.
qualified personnel.qualified personnel.
qualified personnel.
2.
2.2.
2. Ground connection
Ground connection Ground connection
Ground connection ( ) must be connected with
must be connected with must be connected with
must be connected with
protective earth wire
protective earth wire protective earth wire
protective earth wire (PE
PEPE
PE ) in supply system according
in supply system according in supply system according
in supply system according
to appropriate instructions.
to appropriate instructions.to appropriate instructions.
to appropriate instructions.
3.
3.3.
3. Solenoid plug shall precisely adhere to socket and shall
Solenoid plug shall precisely adhere to socket and shall Solenoid plug shall precisely adhere to socket and shall
Solenoid plug shall precisely adhere to socket and shall
be secured with thread bolt screwed in securely in a
be secured with thread bolt screwed in securely in a be secured with thread bolt screwed in securely in a
be secured with thread bolt screwed in securely in a
place.
place. place.
place. It is forbidden to operate the
It is forbidden to operate the It is forbidden to operate the
It is forbidden to operate the directional
directional directional
directional valve if
valve if valve if
valve if
the tightness and suitable clamp of cable in the plug
the tightness and suitable clamp of cable in the plug the tightness and suitable clamp of cable in the plug
the tightness and suitable clamp of cable in the plug
gland are not ensured.
gland are not ensured.gland are not ensured.
gland are not ensured.
4.
4.4.
4. For
For For
For versions with
versions with versions with
versions with the W230
the W230 the W230
the W230 -
--
- 50
50 50
50 pilot
pilot pilot
pilot valves
valvesvalves
valves,
simultaneous joining of two s
simultaneous joining of two ssimultaneous joining of two s
simultaneous joining of two solenoids
olenoidsolenoids
olenoids of the same valve
of the same valve of the same valve
of the same valve
should not be permitted
should not be permittedshould not be permitted
should not be permitted (partial overriding of the valve
partial overriding of the valve partial overriding of the valve
partial overriding of the valve
can overheat and damage the winding coils
can overheat and damage the winding coilscan overheat and damage the winding coils
can overheat and damage the winding coils).
. .
.
5.
5.5.
5. During operation must be kept fluid viscosity acc. to
During operation must be kept fluid viscosity acc. to During operation must be kept fluid viscosity acc. to
During operation must be kept fluid viscosity acc. to
requirements
requirements requirements
requirements specifi
specifispecifi
specified in this
ed in this ed in this
ed in this D
DD
Data
ataata
ata Sheet
Sheet Sheet
Sheet -
--
- Operation
Operation Operation
Operation
Manual
ManualManual
Manual.
..
.
6.
6.6.
6. In order to ensure failure free and safe operation the
In order to ensure failure free and safe operation the In order to ensure failure free and safe operation the
In order to ensure failure free and safe operation the
following must be
following must be following must be
following must be
systematically
systematically systematically
systematically
checked:
checked:checked:
checked:
•
• •
• condition of the electrical connection
condition of the electrical connectioncondition of the electrical connection
condition of the electrical connection
•
• •
• proper working of the
proper working of the proper working of the
proper working of the directional
directional directional
directional valve
valvevalve
valve
•
• •
• cleanliness of the hydraulic fluid
cleanliness of the hydraulic fluidcleanliness of the hydraulic fluid
cleanliness of the hydraulic fluid
7.
7.7.
7. Due to heating of solenoid coils to high temp., the
Due to heating of solenoid coils to high temp., the Due to heating of solenoid coils to high temp., the
Due to heating of solenoid coils to high temp., the
directional
directional directional
directional valve shall be placed in such way to
valve shall be placed in such way to valve shall be placed in such way to
valve shall be placed in such way to
eliminate the risk of accidental contact with solenoid
eliminate the risk of accidental contact with solenoid eliminate the risk of accidental contact with solenoid
eliminate the risk of accidental contact with solenoid
during operation or to apply suitable covers acc.
during operation or to apply suitable covers acc. during operation or to apply suitable covers acc.
during operation or to apply suitable covers acc. to
to to
to
European standards:
European standards: European standards:
European standards: PN
PNPN
PN -
--
- EN ISO 13732
EN ISO 13732EN ISO 13732
EN ISO 13732-
--
-1 and
1 and 1 and
1 and
PN
PNPN
PN -
--
- EN
EN EN
EN 4413
44134413
4413
8.
8.8.
8. In order to ensure tightness of the directional valve
In order to ensure tightness of the directional valve In order to ensure tightness of the directional valve
In order to ensure tightness of the directional valve
block
blockblock
block, one should take care of dimension of sealing
one should take care of dimension of sealing one should take care of dimension of sealing
one should take care of dimension of sealing
rings
ringsrings
rings, tightening torques
, tightening torques , tightening torques
, tightening torques and valve ope
and valve opeand valve ope
and valve operation
ration ration
ration
parameters
parameters parameters
parameters specified
specifiedspecified
specified in this
in this in this
in this Dat
DatDat
Data Sheet
a Sheeta Sheet
a Sheet -
--
-
Operation
OperationOperation
Operation Manual
ManualManual
Manual.
..
.
9.
9.9.
9. Any changes,
Any changes, Any changes,
Any changes, modifications or adjustments to the
modifications or adjustments to the modifications or adjustments to the
modifications or adjustments to the
v
vv
versions with M type spool position sensor
ersions with M type spool position sensorersions with M type spool position sensor
ersions with M type spool position sensor can be
can be can be
can be
made only by the producer
made only by the producer made only by the producer
made only by the producer -
--
- see notes
see notes see notes
see notes on
onon
on page
pagepage
page 19
1919
19.
..
.
10.
10.10.
10. A person that operates the
A person that operates theA person that operates the
A person that operates the directional
directionaldirectional
directional valve must be
valve must be valve must be
valve must be
thoroughly familiar with
thoroughly familiar with thoroughly familiar with
thoroughly familiar with the content of
the content of the content of
the content of this Data
this Data this Data
this Data
Sheet
Sheet Sheet
Sheet -
--
- Operation Manual.
Operation Manual.Operation Manual.
Operation Manual.

Type WEH22 WK 460 110 09.2017- 5 -
DIAGRAMS
S
SS
Sim
imim
imp
pp
pl
ll
li
ii
if
ff
fie
ieie
ied
dd
d an
anan
and
dd
d de
dede
det
tt
tai
aiai
aile
lele
led
dd
d hy
hyhy
hydrau
draudrau
draul
ll
lic
icic
ic d
dd
dia
iaia
iagram
gramgram
grams
ss
s f
ff
for
oror
or 3
33
3-p
-p-p
-po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n
d
dd
direc
irecirec
irect
tt
ti
ii
io
oo
ona
nana
nal
ll
l v
vv
val
alal
alv
vv
ve
ee
es
ss
s w
ww
wi
ii
it
tt
th
hh
h v
vv
vari
ariari
ario
oo
ou
uu
us
ss
s p
pp
pi
ii
il
ll
lo
oo
ot
tt
t s
ss
sup
upup
upp
pp
ply
lyly
ly ( X
XX
X ) an
anan
and
dd
d p
pp
pi
ii
il
ll
lo
oo
ot
tt
t
drai
draidrai
drain
nn
n ( Y
YY
Y )
3-position directional valves with spring centered
spool at 0
00
0 position in main valve and pilot valve
version ...4WEH22 ... /...
ex
exex
ext
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) ex
exex
ext
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 ... /...
i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) ex
exex
ext
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 ... /... E.
E.E.
E. ..
i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 ... /... E
EE
ET
TT
T..
....
.. .
ex
exex
ext
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ....4WEH22 ... /... T
TT
T..
....
.. .
i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../... E
EE
ET
TT
T ... - impossible
i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) ex
exex
ext
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../... E.
E.E.
E. ..
ex
exex
ext
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) ex
exex
ext
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../...
ex
exex
ext
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../... T
TT
T .. - impossible
3-position directional valves with hydraulically centered
spool at 0
00
0 position in main valve and spring centered
spool in pilot valve version ...4WEH22 H
HH
H .../...
a
b
A
B
PT
a b0
b, Y
A
B
P
T
XY
ab
a, X
ab
0
ab
A
B
P
T
ab0
Y
ab
AB
PT
a b0
ab
A
B
P
T
a b0
Y
ab
A
B
P
T
a b0
X
ab
A
B
P
T
a b0
Y
X
ab
A
B
P
T
a b0
X
ab
A
B
PT
a b
0
Y
X
b, Y
AB
P
T
X
Y
a, X
ab
0
a b
b, Y
A
B
P
T
XY
ab
a, X
ab
0
b, Y
A
B
P
T
XY
ab
a, X
ab
0
b, Y
A
B
P
T
XY
ab
a, X
ab
0
b, Y
AB
P
T
X
Y
a, X
ab
0
ab
b, Y
A
B
P
T
X
Y
a, X
ab
0
ab
b, Y
A
B
P
T
X
Y
ab
a, X
ab
0

Type WEH22
WK 460 110 09.2017 - 6 -
DIAGRAMS
S
SS
Sim
imim
imp
pp
pl
ll
li
ii
if
ff
fie
ieie
ied
dd
d an
anan
and
dd
d de
dede
det
tt
tai
aiai
aile
lele
led
dd
d hy
hyhy
hydrau
draudrau
draul
ll
lic
icic
ic d
dd
dia
iaia
iagram
gramgram
grams
ss
s f
ff
for
oror
or 2
22
2-p
-p-p
-po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n
d
dd
direc
irecirec
irect
tt
ti
ii
io
oo
ona
nana
nal
ll
l v
vv
val
alal
alv
vv
ve
ee
es
ss
s w
ww
wi
ii
it
tt
th
hh
h v
vv
vari
ariari
ario
oo
ou
uu
us
ss
s p
pp
pi
ii
il
ll
lo
oo
ot
tt
t s
ss
sup
upup
upp
pp
ply
lyly
ly ( X
XX
X ) an
anan
and
dd
d p
pp
pi
ii
il
ll
lo
oo
ot
tt
t
drai
draidrai
drain
nn
n ( Y
YY
Y )
b, Y
A
B
P T
XY
ab
a, X
ab
ab
A
B
PT
a b
b, Y
A
B
P T
XY
ab
a, X
ab
ab
A
B
PT
ab
ab
A
B
P T
ab
X
b, Y
A
B
P
T
X
Y
ab
a, X
ab
ab
A
B
PT
a b
Y
b, Y
A
B
P T
XY
ab
a, X
ab
ab
AB
P T
ab
XY
b, Y
A
B
P T
XY
ab
a, X
ab
ab
AB
PT
ab
X
ab
AB
PT
ab
Y
ab
AB
P T
a b
XY
b, Y
A
B
P
T
X
Y
ab
a, X
ab
b, Y
A
B
P T
XY
ab
a, X
ab
b, Y
A
B
P T
XY
ab
a, X
ab
2-position directional valves with spring positioned
spool in main valve and pilot valve
version ...4WEH22 ... /...
2-position directional valves with hydraulically
positioned spool in main valve and spring positioned
spool in pilot valve
version ...4WEH22 H
HH
H .../...
ex
exex
ext
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) ex
exex
ext
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 ... /...
i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) ex
exex
ext
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 ... /... E.
E.E.
E. ..
i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 ... /... E
EE
ET
TT
T..
....
.. .
ex
exex
ext
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ....4WEH22 ... /... T
TT
T..
....
.. .
i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../... E
EE
ET
TT
T ...
i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) ex
exex
ext
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../... E.
E.E.
E. ...
ex
exex
ext
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) ex
exex
ext
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../...
ex
exex
ext
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../... T
TT
T.
..
. ..

Type WEH22 WK 460 110 09.2017- 7 -
DIAGRAMS
2-position directional valves with hydraulically
positioned spool in main valve, pilot valve without
return spring
version ...4WEH22 H
HH
H .../ O
OO
O ...
2-position directional valves with hydraulically
positioned spool in main valve, pilot valve without
return spring, with detent
version ...4WEH22 H
HH
H .../ OF
OFOF
OF ...
i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../ OF
OFOF
OF ... E
EE
ET
TT
T ...
i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) ex
exex
ext
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../ OF
OFOF
OF ... E.
E.E.
E. ...
ex
exex
ext
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) ex
exex
ext
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../ OF
OFOF
OF ...
ex
exex
ext
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../ OF
OFOF
OF ... T
TT
T.
..
. ..
i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../ O
OO
O ... E
EE
ET
TT
T ...
i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) ex
exex
ext
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../ O
OO
O ... E.
E.E.
E. ...
ex
exex
ext
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) ex
exex
ext
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../ O
OO
O ...
ex
exex
ext
tt
terna
ernaerna
ernal
ll
l supply ( X
XX
X ) i
ii
in
nn
nt
tt
terna
ernaerna
ernal
ll
l drain ( Y
YY
Y )
version ...4WEH22 H
HH
H .../ O.
O.O.
O. .. T
TT
T.
..
. ..
b, Y
A
B
P T
XY
ab
a, X ab
ab
AB
P T
a b
X Y
b, Y
A
B
P T
XY
ab
a, X ab
ab
AB
P T
a b
XY
AB
PT
ab
Y
ab
b, Y
A
B
P T
XY
ab
a, X
ab
AB
PT
ab
Y
ab
b, Y
A
B
PT
XY
ab
a, X
ab
b, Y
A
B
P T
XY
ab
a, X
ab
AB
PT
ab
ab
b, Y
A
B
P T
XY
ab
a, X
ab
AB
PT
ab
ab
AB
PT
ab
X
ab
b, Y
A
B
P
T
X
Y
ab
a, X
ab
AB
P
T
ab
X
ab
b, Y
A
B
P
T
X
Y
ab
a, X
ab
S
SS
Sim
imim
imp
pp
pl
ll
li
ii
if
ff
fie
ieie
ied
dd
d an
anan
and
dd
d de
dede
det
tt
tai
aiai
aile
lele
led
dd
d hy
hyhy
hydrau
draudrau
draul
ll
lic
icic
ic d
dd
dia
iaia
iagram
gramgram
grams
ss
s f
ff
for
oror
or 2
22
2-p
-p-p
-po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n
d
dd
direc
irecirec
irect
tt
ti
ii
io
oo
ona
nana
nal
ll
l v
vv
val
alal
alv
vv
ve
ee
es
ss
s w
ww
wi
ii
it
tt
th
hh
h v
vv
vari
ariari
ario
oo
ou
uu
us
ss
s p
pp
pi
ii
il
ll
lo
oo
ot
tt
t s
ss
sup
upup
upp
pp
ply
lyly
ly ( X
XX
X ) an
anan
and
dd
d p
pp
pi
ii
il
ll
lo
oo
ot
tt
t
drai
draidrai
drain
nn
n ( Y
YY
Y )

Type WEH22
WK 460 110 09.2017 - 8 -
DIAGRAMS
E
EE
E
F
FF
F
G
GG
G
H
HH
H
J
JJ
J
L
LL
L
M
MM
M
Q
QQ
Q
R
RR
R
T
TT
T
U
UU
U
V
VV
V
W
WW
W
K
KK
K
C
CC
C
D
DD
D
Z
ZZ
Z
S
SS
S
AB
P
T
a
aa
ab bb
b
a
aa
ab
bb
b
AB
P
T
D
DD
D1
11
1
AB
PT
a
aa
a b
bb
b
0
00
0
AB
PT
a
aa
ab
bb
b0
00
0
AB
PT
a
aa
a0 00
0
A B
P T
a
aa
a0
00
0
AB
PT
b
bb
b
0
00
0
AB
PT
b
bb
b0
00
0
E
EE
EA
AA
A
F
FF
FA
AA
A
G
GG
GA
AA
A
H
HH
HA
AA
A
J
JJ
JA
AA
A
L
LL
LA
AA
A
M
MM
MA
AA
A
Q
QQ
QA
AA
A
R
RR
RA
AA
A
T
TT
TA
AA
A
U
UU
UA
AA
A
V
VV
VA
AA
A
WA
WAWA
WA
SA
SASA
SA
EB
EBEB
EB
FB
FBFB
FB
GB
GBGB
GB
HB
HBHB
HB
JB
JBJB
JB
LB
LBLB
LB
MB
MBMB
MB
QB
QBQB
QB
RB
RBRB
RB
TB
TBTB
TB
UB
UBUB
UB
VB
VBVB
VB
WB
WBWB
WB
SB
SBSB
SB
versions ...4WEH22 ...
versions ...4WEH22... A
AA
A ... versions ...4WEH22...
B
BB
B ...
versions ...4 WEH22 ...
working and
indirect positions
working
positions
3-p
3-p3-p
3-po
oo
osi
sisi
sit
tt
ti
ii
io
oo
on
nn
n
D
DD
Di
ii
iagr
agragr
agra
aa
ams
msms
ms o
oo
of
ff
f sp
sp sp
spo
oo
oo
oo
ols
lsls
ls
working and
indirect positions
working
positions
2-p
2-p2-p
2-po
oo
osi
sisi
sit
tt
ti
ii
io
oo
on
nn
n ( a
aa
a , 0
00
0 )
working and
indirect positions
working
positions
2-p
2-p2-p
2-po
oo
osi
sisi
sit
tt
ti
ii
io
oo
on
nn
n ( 0
00
0 , b
b b
b )
2-p
2-p2-p
2-po
oo
osi
sisi
sit
tt
ti
ii
io
oo
on
nn
n ( a
aa
a , b
b b
b )
working and
indirect positions
working
positions

Type WEH22 WK 460 110 09.2017- 9 -
OVERALL AND CONNECTION DIMENSIONS
3
33
3-p
-p-p
-po
oo
os
ss
sit
itit
iti
ii
io
oo
on
n n
n st
stst
sta
aa
and
ndnd
ndard
ard ard
ard vers
versvers
versi
ii
io
oo
on
nn
ns
ss
s ... 4
44
4W
WW
WE
EE
EH
HH
H2
22
22
22
2 ... S
SS
S ... D
DD
D1
11
1 ...
17
P
PP
P
A
AA
AB
BB
B
T
TT
T
L
LL
L
X
XX
X
Y
YY
Y
X
XX
XA
AA
A
X
XX
XA
AA
AB
BB
B
a
aa
a
b
bb
b
288
218 15
125
219
40
49
0,63
r
0,01/100
18
P
PP
P
A
AA
AB
BB
B
T
TT
T
L
LL
L
X
XX
X
Y
YY
Y
5,6
17,5
29,2
53
77
100,6
112,5
130
94,3
76,8
19
17,5
46
73
74,5
92
96,8
O 10 - 2 holes (X, Y)
M12 depth 25 - 6 holes
O 6,5 depth 8 - 2 holes
O 24,5 - 3 holes (A, B, T)
O 22 (P)
O 8 (L*)
11
101
2
3
4
5
6
8
9
7
15
14
12
13
1 - 3
33
3-p
-p-p
-po
oo
ositi
sitisiti
sitio
oo
on
nn
n main directional valve (spool diagrams:
E
EE
E , F
FF
F , G
GG
G , H
HH
H , J
JJ
J , L
L L
L , M
MM
M , P
PP
P , Q
QQ
Q , R
RR
R , U
UU
U , V
VV
V , W
W W
W - on page 8)
2 - 3
33
3-p
-p-p
-po
oo
ositi
sitisiti
sitio
oo
on
nn
n directional valve (pilot valve) type W
WW
WE
EE
E6
66
6 ...
(spool types according to technical data on page 4)
3 - Solenoid on side a
aa
a
4 - Solenoid on side b
bb
b
5 - Plug-in connector on side a
aa
a -
--
- type I
II
IS
SS
SO
OO
O 4
44
44
44
40
00
00
00
0
(DIN 43650 - A)
6 - Plug-in connector on side b
bb
b - type I
II
IS
SS
SO
OO
O 4
44
44
44
40
00
00
00
0
(DIN 43650 - A)
7 - Manual override
8 - Pilot choke adjustment (optional accessories)
9 - Pressure ratio valve (optional accessories)
10 - S
SS
Square cr
quare crquare cr
quare cro
oo
oss-secti
ss-sectiss-secti
ss-sectio
oo
on
nn
n sealing ring 2
22
27 x
7 x 7 x
7 x 3
33
3 - pcs 4/set
( P
PP
P , T
T T
T , A
A A
A , B
B B
B )
11 - S
SS
Square cr
quare crquare cr
quare cro
oo
oss-secti
ss-sectiss-secti
ss-sectio
oo
on
nn
n sealing ring 1
11
19,
9,9,
9,2 x
2 x 2 x
2 x 3
33
3 - pcs 3/set
( X
XX
X , Y
Y Y
Y , L
L L
L )
12 - Dimension for directional valve with the spool position
0
00
0 (neutral) spring c
spring c spring c
spring c entered
enteredentered
entered (version ...4WEH22.../... )
13 - Dimension for directional valve with the spool position
0
00
0 (neutral) hydraul
hydraulhydraul
hydraulicall
icallicall
ically ce
y cey ce
y centered
nteredntered
ntered
(version...4WEH22 H
HH
H .../...)
14 - Dimension for electrical connection for D
DD
DC
CC
C
15 - Dimension for electrical connection for AC
ACAC
AC
(plug-in connector with rectifier)
16 - Space for disasembly of plug-in connector - item 5, 6
17 - Porting pattern - configuration of surface holes in
subplate in accordance with the standard I
II
IS
SS
SO
O O
O 4
44
44
44
40
00
01
11
1
designation I
II
IS
SS
SO
O O
O 4
44
44
44
40
00
01
11
1 -08-07-0-94 (CETOP 08)
fixing screws M
MM
M1
11
12
22
2 x
x x
x 6
66
60
00
0 -
- -
- 1
11
10
00
0.
..
.9
99
9 -
- -
- in accordance with
P
PP
PN
NN
N -
- -
- E
EE
EN
NN
N I
II
IS
SS
SO
OO
O 4
44
47
77
76
66
62
22
2 - pcs 6/set; must be ordered
separately; tightening torque Md
Md Md
Md =
= =
= 1
11
10
00
05
5 5
5 Nm
NmNm
Nm
NO
NONO
NOT
TT
TE:
E:E:
E:
( *
**
* ) - only for 3-positi
3-positi3-positi
3-positi on
onon
on version with 0
00
0 (neutral) position
of the spool
hyd
hydhyd
hydr
rr
raulically cent
aulically centaulically cent
aulically cent e
ee
er
rr
re
ee
ed
dd
d
18 - Subplate surface required
130
49 77
92
53
O 16 - 6 holes
O 20 - 6 counterbores
7 125 25 40 86 (93)
O 6 - 2 pins
188 (min)
117 (min)
15
16
86
117
S6
S19
45

Type WEH22 WK 460 110 09.2017- 10 -
OVERALL AND CONNECTION DIMENSIONS
2
22
2-p
-p-p
-po
oo
os
ss
sit
itit
iti
ii
io
oo
on
n n
n st
stst
sta
aa
and
ndnd
ndard
ard ard
ard vers
versvers
versi
ii
io
oo
on
nn
ns ...4
s ...4s ...4
s ...4W
WW
WE
EE
EH
HH
H2
22
22...S...
2...S...2...S...
2...S... D
DD
D1...
1...1...
1...
1
6
4
5
2
3
8
9
12
13
P
PP
P
A
AA
AB
BB
B
T
TT
T
X
XX
X
Y
YY
Y
X
XX
XA
AA
A
X
XX
XA
AA
AB
BB
B
a
aa
a
b
bb
b
15
14
7
10 11
1 - 2
22
2-
--
-p
pp
po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n main directional valve (spool diagrams:
C
C C
C , D
DD
D , K
KK
K , Z
ZZ
Z,
,,
, D
DD
D1
11
1 - on page 8)
2 - 2
22
2-
--
-p
pp
po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n directional valve (pilot valve) type W
WW
WE
EE
E6
66
6.
..
..
..
..
..
.
(spool types according to technical data on page 4)
3 - Solenoid on side a
aa
a
4 - Solenoid on side b
bb
b - 2 solenoids (on side a
aa
a , b
b b
b ) only for
versions: ...4WEH22 H
HH
H .../ O
OO
O , ...4WEH22 H
HH
H .../ O
OO
OF
FF
F ...
5 - Plug-in connector on side a
aa
a -
--
- type I
II
IS
SS
SO
OO
O 4
44
44
44
40
00
00
00
0
(DIN 43650 - A)
6 - Plug-in connector on side b
bb
b -
--
- type I
II
IS
SS
SO
OO
O 4
44
44
44
40
00
00
00
0
(DIN 43650 - A)
7 - Manual override
8 - Pilot choke adjustment (optional accessories)
9 - Pressure ratio valve (optional accessories)
10 - S
SS
Squ
ququ
quare
areare
are cr
crcr
cro
oo
oss
ssss
ss-
--
-se
sese
sec
cc
ct
tt
ti
ii
io
oo
on
nn
n sealing ring 2
22
27
77
7 x
x x
x 3
33
3 - pcs 4/set
( P
PP
P , T
TT
T , A
AA
A , B
BB
B )
11 - S
SS
Squ
ququ
quare
areare
are cr
crcr
cro
oo
oss
ssss
ss-
--
-se
sese
sec
cc
ct
tt
ti
ii
io
oo
on
nn
n sealing ring 1
11
19
99
9,
,,
,2
22
2 x
x x
x 3
33
3 - pcs 3/set
( X
XX
X , Y
YY
Y , L
LL
L )
12 - Dimension for directional valve with spr
sprspr
spri
ii
ing
ngng
ng p
p p
po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
one
nene
ned
dd
d
spool (version ...4WEH22 ... /...)
13 - Dimension for directional valve with hy
hyhy
hydra
dradra
drau
uu
ul
ll
li
ii
ic
cc
ca
aa
al
ll
ll
ll
ly
yy
y
p
p p
po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
one
nene
ned
dd
d spool (version ...4WEH22 H
HH
H .../...)
14 - Dimension for electrical connection for DC
DCDC
DC
15 - Dimension for electrical connection for AC
ACAC
AC
(plug-in connector with rectifier)
16 - Space for disasembly of plug-in connector - item 5, 6
17 - Porting pattern - configuration of surface holes in
subplate in accordance with the standard I
II
IS
SS
SO
OO
O 4
44
44
44
40
00
01
11
1
designation I
II
IS
SS
SO
OO
O 4
44
44
44
40
00
01
11
1 -08-07-0-94 (CETOP 08)
fixing screws M
MM
M1
11
12
22
2 x
x x
x 6
66
60
00
0 -
--
- 1
11
10
00
0.
..
.9
99
9 -
--
- in accordance with
P
PP
PN
NN
N -
--
- E
EE
EN
NN
N I
II
IS
SS
SO
OO
O 4
44
47
77
76
66
62
22
2 - pcs 6/set; must be ordered
separately; tightening torque Md
MdMd
Md = 1
11
10
00
05
55
5 Nm
NmNm
Nm
N
NN
NO
OO
OT
TT
TE
EE
E:
::
:
( * ) - only for 3-positi
3-positi3-positi
3-positi on
onon
on version with 0
00
0 (neutral)
position of the spool
hyd
hydhyd
hydr
rr
raulically cent
aulically centaulically cent
aulically cent e
ee
er
rr
re
ee
ed
dd
d
18 - Subplate surface required
17
0,63
r
0,01/100
18
P
PP
P
A
AA
AB
BB
B
T
TT
T
L
LL
L
X
XX
X
Y
YY
Y
5,6
17,5
29,2
53
77
100,6
112,5
130
94,3
76,8
19
17,5
46
73
74,5
92
96,8
O 10 - 2 holes (X, Y)
M12 depth 25 - 6 holes
O 6,5 depth 8 - 2 holes
O 24,5 - 3 holes (A, B, T)
O 22 (P)
O 8 (L*)
188 (min)
117 (min)
40
49
125
251
282
125 25 40 86 (93) 15
77
130
49
92
16
O 6 - 2 pins
7
O 16 - 6 holes
O 20 - 6 counterbores
117
S6
S19
154
218 15
45

Type WEH22
WK 460 110 09.2017 - 11 -
OVERALL AND CONNECTION DIMENSIONS
2
22
2-p
-p-p
-po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n s
ss
st
tt
tan
anan
andard
darddard
dard v
vv
vers
ersers
ersi
ii
io
oo
on
nn
ns
ss
s:
::
: .
..
..
..
..
..
.4
44
4W
WW
WE
EE
EH
HH
H2
22
22
22
2.
..
..
..
..A
.A.A
.A .
..
..
..
..
..
.S
SS
S.
..
..
..
..
..
.D
DD
D1
11
1.
..
..
..
..
..
.;
;;
; .
..
..
..
..
..
.4
44
4W
WW
WE
EE
EH
HH
H2
22
22
22
2.
..
..
..
..B
.B.B
.B .
..
..
..
..
..
.S
SS
S.
..
..
..
..
..
.D
DD
D1
11
1.
..
..
..
..
..
.
1 - 3
33
3-
--
-p
pp
po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n main directional valve - version:
• ...4WEH22... A
AA
A ... (spool diagrams: E
EE
EA
AA
A , FA
FAFA
FA , GA
GAGA
GA , HA
HAHA
HA ,
JA
JAJA
JA , LA
LALA
LA , MA
MAMA
MA , PA
PAPA
PA , QA
QAQA
QA , RA
RARA
RA , UA
UAUA
UA , V
VV
VA
AA
A , WA
WAWA
WA - on page 8 )
• ...4 WEH22... B
BB
B ... (spool diagrams: E
EE
EB
BB
B , FB
FBFB
FB , GB
GBGB
GB , H
HH
HB
BB
B ,
JB
JBJB
JB , LB
LBLB
LB , MB
MBMB
MB , P
PP
PB
BB
B , QB
QBQB
QB , RB
RBRB
RB , UB
UBUB
UB , V
VV
VB
BB
B , WB
WBWB
WB - on page 8)
2 - 2
22
2-
--
-p
pp
po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n directional valve (pilot valve) type W
WW
WE
EE
E6
66
6.
..
..
..
..
..
.
(spool types according to technical data on page 4)
3 - Solenoid on side a
aa
a - for version ...4WEH22... A
AA
A ...
4 - Solenoid on side b
b b
b - for version ...4WEH22... B
BB
B ...
5 - Plug-in connector on side a
aa
a - for version ...4WEH22... A
AA
A ...
type I
II
IS
SS
SO
OO
O 4
44
44
44
40
00
00
00
0 (DIN 43650 - A)
6 - Plug-in connector on side b
bb
b - for version ...4WEH22... B
BB
B ...
type I
II
IS
SS
SO
OO
O 4
44
44
44
40
00
00
00
0 (DIN 43650 - A)
7 - Manual override
8 - Pilot choke adjustment (optional accessories)
9 - Pressure ratio valve (optional accessories)
10 - S
SS
Squ
ququ
quare
areare
are cr
crcr
cro
oo
oss
ssss
ss-
--
-se
sese
sec
cc
ct
tt
ti
ii
io
oo
on
nn
n sealing ring 2
22
27
77
7 x
x x
x 3
33
3 - pcs 4/set
( P
PP
P , T
TT
T , A
AA
A , B
BB
B )
11 - S
SS
Squ
ququ
quare
areare
are c
cc
co
oo
orss
rssrss
rss-
--
-se
sese
sec
cc
ct
tt
ti
ii
io
oo
on
nn
n sealing ring 1
11
19
99
9,
,,
,2
22
2 x
x x
x 3
33
3 - pcs 3/set
( X
XX
X , Y
YY
Y , L
LL
L )
12 - Dimension for electrical connection for DC
DCDC
DC
13 - Dimension for electrical connection for AC
ACAC
AC
(plug-in connector with rectifier)
14 - Space for disasembly of plug-in connector - item 5, 6
15 - Porting pattern - configuration of surface holes in
subplate in accordance with the standard I
II
IS
SS
SO
OO
O 4
44
44
44
40
00
01
11
1
designation I
II
IS
SS
SO
OO
O 4
44
44
44
40
00
01
11
1 -08-07-0-94 (CETOP 08)
fixing screws M
MM
M1
11
12
22
2 x
x x
x 6
66
60
00
0 -
--
- 1
11
10
00
0.
..
.9
99
9 -
--
- in accordance with
P
PP
PN
NN
N-
--
-E
EE
EN
NN
N I
II
IS
SS
SO
OO
O 4
44
47
77
76
66
62
22
2 - pcs 6/set; must be ordered
separately; tightening torque Md = 1
11
10
00
05
55
5 Nm
NmNm
Nm
N
NN
NO
OO
OT
TT
TE
EE
E:
::
:
( * ) - only for 3-position version with 0
0 0
0 (neutral)
position of the spool hydraulically centered
16 - Subplate surface required
1
6
4
5
2
3
8
9
P
PP
P
A
AA
AB
BB
B
T
TT
T
X
XX
X
Y
YY
Y
X
XX
XA
AA
A
X
XX
XA
AA
AB
BB
B
a
aa
a
b
bb
b
13
12
7
10 11
15
0,63
r
0,01/100
16
P
PP
P
A
AA
AB
BB
B
T
TT
T
L
LL
L
X
XX
X
Y
YY
Y
5,6
17,5
29,2
53
77
100,6
112,5
130
94,3
76,8
19
17,5
46
73
74,5
92
96,8
O 10 - 2 holes (X, Y)
M12 depth 25 - 6 holes
O 6,5 depth 8 - 2 holes
O 24,5 - 3 holes (A, B, T)
O 22 (P)
O 8 (L*)
188 (min)
117 (min)
14
40
49
125
251
92
O 16 - 6 holes
O 20 - 6 counterbores
49
77
130
1586 (93)125
O 6 - 2 pins
7
117
4025
45
S6
S19
154
154
15
233

Type WEH22
WK 460 110 09.2017 - 12 -
P ilot hoke adjustment
1 - Main valve
2 - Pilot valve
3 - Pilot choke adjustment with adjustment of switching
time on outlet
4 - Assembly method of pilot choke adjustment with
adjustment of switching time at the intlet
5 - Adjusting screw (socket S
SS
S6
66
6 )
6 - Locknut (
S
SS
S1
11
19
99
9 )
7 - Pressure ratio valve
versions: ...4WEH22.../...
S
SS
S ...
...4WEH22.../... S
SS
S2
22
2 ...
Pressure ratio valve
versions: 4WEH22.../...ET... D
DD
D1
11
1 ...
4WEH22.../...E... D
DD
D1
11
1 ...
ACCESSORIES FOR STANDARD VERSIONS
OF THE DIRECTIONAL VALVE
The directional control valve ... 4
44
4W
WW
WE
EE
EH
HH
H2
22
22
22
2 ... with internal
pilot oil supply - versions: ... E
EE
E ...;... E
EE
ET
TT
T ... at t
at tat t
at the p
he phe p
he pi
ii
il
ll
lo
oo
ot
t t
t o
oo
oi
ii
il
ll
l
s
ss
supp
uppupp
upply press
ly pressly press
ly pressure exceed
ure exceedure exceed
ure exceedi
ii
ing
ng ng
ng 2
22
25
5 5
5 M
MM
MP
PP
Pa m
a ma m
a mu
uu
ust be eq
st be eqst be eq
st be equ
uu
uipped
ippedipped
ipped
w
ww
wit
itit
ith
h h
h a pres
a presa pres
a press
ss
sure r
ure rure r
ure rat
atat
ati
ii
io
o o
o v
vv
va
aa
al
ll
lve
veve
ve ( 7
77
7 ).
It causes the pilot pressure to be reduced at the ratio
1:0,66 = 1,515. The minimum control pressure when
applying the pressure ratio valve must be increased
by the ratio 1:0,66 = 1,515.
The screws M
MM
M5
5 5
5 x
x x
x 1
11
11
11
15
55
5 - 1
11
10.
0.0.
0.9
99
9 acc. to P
PP
PN-
N-N-
N-E
EE
EN
N N
N I
II
IS
SS
SO
O O
O 4
44
47
77
76
66
62
22
2
pcs 4 fixing the pressure ratio valve (7), the pilot choke
adjustment (3) and the pilot valve (2) must be
tightened with torque M
MM
Md =
d = d =
d = 9 Nm.
9 Nm.9 Nm.
9 Nm.
Directional spool valves type ...4 W
WW
WE
EE
EH
HH
H2
22
22
22
2 ... may be optionally
provided with pilot choke adjustment (throttle check valve
type Z
ZZ
Z2F
2F2F
2FS
SS
S6
66
6 ... ), which allows to adjust switching time
directional spool valve.
The change of adjustment method of switching time (flow
throttling):
•on inlet (version ...4WEH22.../ S
SS
S ...)
•on outlet (version ...4WEH22.../ S
SS
S2
22
2 ...)
is made while mounting by rotating the pilot choke
adjustment (3) o 180 degrees around its longitudinal axis.
Rotation of the adjusting screw (5) clockwise increases and
counterclockwise decreases the switching of the valve.
Screws M
MM
M5
5 5
5 x
x x
x 9
99
90
00
0 - 1
11
10.
0.0.
0.9
99
9 acc. to PN
PN PN
PN -
- -
- E
EE
EN
N N
N I
II
IS
SS
SO
O O
O 4
44
47
77
76
66
62
22
2 - pcs 4
fixing the adjustment (3) and the pilot valve (2) must be
tightened with torque M
MM
Md
dd
d = 9 Nm
9 Nm9 Nm
9 Nm .
7
2
H - 4WEH22.../...ET D
DD
D1
11
1 ...
...4WEH22. .../... S
SS
S2
22
2 ...
...4WEH22.../... S
SS
S ...
H - 4WEH22.../...E D
DD
D1
11
1 ...
3
5
1
4
X
XX
XA
AA
AB
BB
B
a
aa
a
b
bb
b
X
XX
XA
AA
AB
BB
B
a
aa
a
b
bb
b
X
XX
XA
AA
AB
BB
B
X
XX
XA
AA
AB
BB
B
a
aa
a
b
bb
b
...4WEH22.../...ET S... D
DD
D1
11
1 ...
...4WEH22.../...E S... D
DD
D1
11
1 ...
6

Type WEH22 WK 460 110 09.2017- 13 -
Pre-load valve
versions: ...4WEH22.../... P
PP
P4,
4,4,
4,5.
5.5.
5. ..
...4WEH22.../... P
PP
P7
77
7 ...
Directional valve type ...W
...W...W
...WE
EE
EH
HH
H2
22
22...
2...2...
2... with internal pilot oil
supply ( X
XX
X ) - versions:
... 4WEH22.../... E...
E...E...
E...
...4WEH22.../... E
EE
ET
TT
T ...
with spools with pressureless circulation of hydraulic fluid
mu
mumu
must be eq
st be eqst be eq
st be equ
uu
uipped
ipped ipped
ipped w
ww
wit
itit
ith
h h
h t
tt
the pre-
he pre-he pre-
he pre-l
ll
lo
oo
oad
ad ad
ad v
vv
va
aa
al
ll
lve
ve ve
ve (
((
(2
22
2) f
) f) f
) fi
ii
ixed
xed xed
xed i
ii
in
nn
n
port
port port
port P
PP
P of the main valve (1).
Cracking pressure for pre-load valves:
valve version P
P P
P 4.
4.4.
4.5
55
5 - 0,
0,0,
0,4
44
45
5 5
5 M
MM
MP
PP
Pa
aa
a
valve version P
P P
P 7
77
7 - 0,
0,0,
0,7
7 7
7 M
MM
MP
PP
Pa
aa
a
For directional valves with fixed pressure ratio valve -
versions ...4WEH22.../... D
DD
D1
11
1 ... the pre-load valve P
P P
P7
77
7 must
be applied.
...4WEH22.../... P
PP
P ...
Perf
PerfPerf
Perform
ormorm
orma
aa
ance c
nce cnce c
nce cur
urur
urves
ves ves
ves f
ff
for pre-
or pre-or pre-
or pre-l
ll
lo
oo
oad
ad ad
ad v
vv
va
aa
al
ll
lves
vesves
ves
version ...4WEH22... /... P
PP
P4,
4,4,
4,5
55
5 ...
version ...4WEH22. .
..
. ./... P
PP
P7
77
7 ...
Directional valves type ...W
...W...W
...WE
EE
EH
HH
H2
22
22...
2...2...
2... may be equipped with
throttle insert (3) in port P
PP
P in pilot valve (2) which allows
to delay switching time of the main valve.
P
PP
P
Throttle insert
version ...4WEH22.../... B.
B.B.
B. ..
1 - Main valve body
2 - Pilot valve body
3 - Throttle insert
1 - Main valve body
2 - Pre-load valve
0
∆
P(MPa)
0,8
0,6
0,4
0,2
1,0
25010050 200150
Q (dm / min)
0
∆
P(MPa)
0,8
0,6
0,4
0,2
1,0
25010050 200150
Q (dm / min)
3
3
22
1
2
1
3
o
2
ν = 41 mm /s and temperature t =50 C)
(measured at viscosity
ACCESSORIES FOR STANDARD VERSIONS
OF THE DIRECTIONAL VALVE
...4WEH22.../... B
BB
B ...

Type WEH22
WK 460 110 09.2017 - 14 -
1 - Hole screw plug M
MM
M6
66
6 -
- -
- 8
88
8,
,,
,8
88
8 (S3)
2 - Hole screw plug M
MM
M6
66
6 -
- -
- 8
88
8,
,,
,8
88
8 (S3)
3 - Main valve body
4 - Side cover
5 - Pilot valve body
Pilot oil supply and pilot oil drain
X
Y
B
BB
B
A
AA
A
P
PP
P
T
TT
TY
YY
Y
X
XX
X
T
TT
T
P
PP
P
T
TT
T
134
2
5
ACCESSORIES FOR STANDARD VERSIONS
OF THE DIRECTIONAL VALVE
Pilot oil supply (X
XX
X) - external
externalexternal
external
pilot oil drain (Y
YY
Y) - external
externalexternal
external
version 4WEH22 /…
In version 4WEH22 /… the hole screw plugs (1) and
(2) must be mounted in the position like given on the
drawing.
Pilot oil supply (X
XX
X) - i
ii
internal
nternalnternal
nternal
pilot oil drain (Y
YY
Y) - external
externalexternal
external
version 4WEH22 / E
EE
E
In version 4WEH22 / E
EE
E the hole screw plug (1)
must be dismounted whereas the hole screw plug (2),
must be mounted and port X
XX
X in a subplate should be
plugged.
Pilot oil supply (X
XX
X) - internal
internalinternal
internal
pilot oil drain (Y
YY
Y) - internal
internalinternal
internal
version 4WEH22 / E
EE
ET
TT
T
In version 4WEH22 / ET
ETET
ET the hole screw plugs
(1) and (2) must be dismounted and ports X
XX
X and Y
YY
Y in a
subplate must be plugged.
Pilot oil supply
(
X
XX
X
)
-
external
externalexternal
external
pilot oil drain (Y
YY
Y) - internal
internalinternal
internal
version 4WEH22 / T
TT
T
In version 4WEH22 / T
TT
T
the hole screw
plug (1
) must be mounted whereas the hole screw
plug (2) must be dismounted and the port Y
YY
Y
in a
subplate must be plugged.
NOTES:
NOTES:NOTES:
NOTES:
Versions with internal oil drain: ET
ETET
ET ; T
TT
T are
non-applicable for directional valves with main spool
hydraulically centered (versions 4WEH22H
HH
H ).
The hole screw plug (1) in line X
XX
X is accessible after
screwing out a side cover (4) in the main valve (3).
The hole screw plug (2) in line Y
YY
Y is accessible after
dismounting the pilot valve (5).

Type WEH22 WK 460 110 09.2017- 15 -
Stroke limiter
1 - Stroke limiter body (on valve end B
BB
B )
2 - Spool of the main valve
3 - Pin
4 - Locknut
...4WEH22.../... 1
11
12.
2.2.
2. ..
Adjustment of the stroke of the main spool is by rotating
the pin (2) an d securing with locknut (3) . Rotating the
pin (2) clockwise reduces the stroke of the main spool.
While adjusting the stroke the control chamber must be
at zero pressure.
Str
StrStr
Stro
oo
ok
kk
ke l
e le l
e lim
imim
imiter m
iter miter m
iter may be m
ay be may be m
ay be mo
oo
ou
uu
un
nn
nted:
ted:ted:
ted:
•stroke limiter at the A
AA
A and B
BB
B sides
- version...4WEH22.../... 1
11
10
00
0 ...
•stroke limiter at the A
A A
A side
- version ...4WEH22.../... 1
11
11
11
1 ...
•stroke limiter at the B
BB
B side
- version ...4WEH22.../... 1
11
12
22
2 ...
3
41
2
S24
S8
12
12 (max)
Directional valves type ...4WEH22... may be equipped
with spool end position monitor, optionally co
coco
con
nn
ntact
tacttact
tact
ma
mama
mak
kk
ker
erer
er or co
coco
con
nn
ntact bre
tact bretact bre
tact brea
aa
ak
kk
ker
erer
er , mounted depending on the
version, in main valve cover at the A
AA
A or B
B B
B sides -
overall dimensions on pages 24 - 27.
Detailed information concerning proximity sensors and
plug-in connectors given on page 4.
End position monitor
E
EE
End p
nd pnd p
nd po
oo
os
ss
sit
itit
iti
ii
io
oo
on m
n mn m
n mo
oo
on
nn
nit
itit
itor m
or mor m
or may be m
ay be may be m
ay be mo
oo
ou
uu
un
nn
nted:
ted:ted:
ted:
• at the A
A A
A side
versions: ...4WEH22.../... 1
11
18
88
8 ...(contact breaker).
...4WEH22.../... 2
22
22
22
2 ...(contact maker)
• at the B
B B
B side
versions: ...4WEH22.../... 1
11
19
99
9 ...(contact breaker)
...4WEH22.../... 2
22
23
33
3 ...(contact maker)
s
ss
sig
igig
ign
nn
na
aa
al
l l
l le
lele
leve
veve
vel
ll
l
011
1
11
1
2
22
2
0
1
1
sensor
valve body side
sensor
cover side
end p
end pend p
end po
oo
os
ss
sit
itit
iti
ii
io
oo
on m
n mn m
n mo
oo
on
nn
nit
itit
itor
or or
or w
ww
wit
itit
ith c
h ch c
h co
oo
on
nn
ntact bre
tact bretact bre
tact brea
aa
ak
kk
kers
ersers
ers
(versions 4WEH22.../... 1
11
18
88
8 ...; ... 1
11
19
99
9 ...)
end p
end pend p
end po
oo
os
ss
sit
itit
iti
ii
io
oo
on m
n mn m
n mo
oo
on
nn
nit
itit
itor
or or
or w
ww
wit
itit
ith c
h ch c
h co
oo
on
nn
ntact m
tact mtact m
tact ma
aa
ak
kk
kers
ersers
ers
(versions 4WEH22.../... 2
22
22
22
2 ...; ... 2
22
23
33
3 ...)
100
1
0
0
spool position
central cover side central
valve body
side
cover side
valve body
side
spool position
OPTIONAL ACCESSORIES FOR THE DIRECTIONAL VALVE

Type WEH22
WK 460 110 09.2017 - 16 -
+_
10-30V DC
central ( 0
00
0 )*
1 2
+_
10-30V DC
3 1
BU
BN
BK BU BN
BK
2
3
1
4
spool position
valve body side
cover side
NO
NONO
NOT
TT
TE:
E:E:
E:
(*) - Only for 3-posit
3-posit3-posit
3-positio
ioio
ion
nn
n directional valves
valve body side
cover side
2
4
1
3
2
4
1
3
poles of the plug-in
connector
+_
10-30V DC
12
+_
10-30V DC
3 1
BU
BN
BK BU BN
BK
4
3
1
2
central ( 0
00
0 )*
spool position
valve body side
cover side
NO
NONO
NOT
TT
TE:
E:E:
E:
(*) - Only for 3-posit
3-posit3-posit
3-positio
ioio
ion
nn
n directional valves
valve body side
cover side
24
1
3
24
1
3
poles of the plug-in
connector
...4WEH22.../... 1
11
19
99
9 ...
1 - Inductive sensor contact breaker P
PP
PN
NN
NP N
P NP N
P NC
CC
C
according to page 4
2 - Inductive sensor contact maker P
PP
PN
NN
NP
PP
P N
NN
NO
OO
O
according to page 4
3 - Plug-in cable connector (straight, female plug-in
connectors - according to page 4, pcs 2 delivered
with the valve )
4 - Mandrel of the main spool
5 - Sensors cover
...4WEH22.../... 2
22
23
33
3 ...
1 - Inductive sensor contact maker P
PP
PN
NN
NP
PP
P N
NN
NO
OO
O
according to page 4
2 - Inductive sensor contact breaker P
PP
PN
NN
NP
PP
P N
NN
NC
CC
C
according to page 4
3 - Plug-in cable connector (straight, female plug-in
connectors - according to page 4, pcs 2 delivered
with the valve)
4 - Mandrel of the main spool
5 - Sensors cover
End position monitor
di
didi
diagr
agragr
agram
am am
am o
oo
of electr
f electrf electr
f electric
icic
ica
aa
al c
l cl c
l co
oo
on
nn
nnect
nectnect
necti
ii
io
oo
on
n n
n o
oo
of se
f sef se
f sen
nn
ns
ss
sor
oror
ors set
s sets set
s set
co
coco
con
nn
ntact bre
tact bretact bre
tact brea
aa
ak
kk
ker
erer
er
di
didi
diagr
agragr
agram
am am
am o
oo
of electr
f electrf electr
f electric
icic
ica
aa
al c
l cl c
l co
oo
on
nn
nnectr
nectrnectr
nectri
ii
io
oo
on
n n
n o
oo
of se
f sef se
f sen
nn
ns
ss
sor
oror
ors set
s sets set
s set
co
coco
con
nn
ntact m
tact mtact m
tact ma
aa
ak
kk
ker
erer
er
valve body side
cover side
valve body side
cover side
2
5
4
1
3
2
5
4
1
3
OPTIONAL ACCESSORIES FOR THE DIRECTIONAL VALVE

Type WEH22 WK 460 110 09.2017- 17 -
Add
AddAdd
Addit
itit
iti
ii
io
oo
on
nn
na
aa
al
l l
l T
TT
Tech
echech
echn
nn
nic
icic
ica
aa
al
l l
l D
DD
Dat
atat
ata
aa
a
3
33
3-p
-p-p
-po
oo
os
ss
sit
itit
iti
ii
io
oo
on,
n, n,
n, spri
sprispri
spring ce
ng ceng ce
ng cen
nn
ntered
teredtered
tered
vers
versvers
versi
ii
io
oo
on
nn
ns ...
s ...s ...
s ...M
MM
MAB...
AB...AB...
AB...
a
aa
a and b
bb
b position monitoring
(sensor at a
aa
a and b
bb
b side)
1
0
1
0
1
0
1
0
0 5050 100 100
pin 2
pin 4
pin 2
pin 4
switch
on side b
bb
b
switch
on side a
aa
a
a
aa
a spool position [%] b
bb
b
1
0
1
0
pin 2
1
0
1
0
0 5050 100 100
pin 4
pin 2
pin 4
a
aa
a spool position [%] b
bb
b
switch
on side b
bb
b
switch
on side a
aa
a
ab
AB
PT
a b0
GG
3
33
3-p
-p-p
-po
oo
os
ss
sit
itit
iti
ii
io
oo
on,
n, n,
n, spri
sprispri
spring ce
ng ceng ce
ng cen
nn
ntered
teredtered
tered
vers
versvers
versi
ii
io
oo
on
nn
ns
ss
s .
..
..
..
..
..
. M
MM
M0...
0...0...
0...
0
00
0 position monitoring
(sensor at a
aa
a and b
bb
b side)
1
0
1
0
0 5050 100
100
pin 2
pin 4
switch
on side a
aa
a
a
aa
a spool position [%] b
bb
b
1
0
1
0
0 5050 100100
pin 2
pin 4
switch
on side b
a
aa
a spool position [%] b
bb
b
3
33
3-p
-p-p
-po
oo
os
ss
sit
itit
iti
ii
io
oo
on,
n, n,
n, spri
sprispri
spring ce
ng ceng ce
ng cen
nn
ntered
teredtered
tered
vers
versvers
versi
ii
io
oo
on
nn
ns
ss
s .
..
..
..
..
..
.MB
MBMB
MB.
..
..
..
..
..
.
b po
b pob po
b pos
ss
sit
itit
iti
ii
io
oo
on m
n mn m
n mo
oo
on
nn
nit
itit
itor
oror
ori
ii
ing
ngng
ng (sensor at the a
aa
a side)
3
33
3-p
-p-p
-po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n,
,,
, s
ss
sprin
prinprin
pring
gg
g c
c c
cen
enen
ent
tt
tered
eredered
ered
v
vv
vers
ersers
ersi
ii
io
oo
on
nn
ns
ss
s .
..
..
..
..
..
.MA.
MA.MA.
MA..
..
..
..
.
a
aa
a position monitoring (sensor at the b
bb
b side)
ab
A B
PT
a b0
G
ab
A B
PT
a b0
G
di
didi
diagr
agragr
agram f
am fam f
am for
oror
or
direct
directdirect
directi
ii
io
oo
on
nn
na
aa
al c
l cl c
l co
oo
on
nn
ntro
trotro
trol
ll
l
v
vv
va
aa
al
ll
lve
veve
ve
0
00
0 - o
oo
off
ffff
ff , ne
ne ne
neu
uu
utra
tratra
tral
ll
l , pote
pote pote
poten
nn
nti
titi
tia
aa
al
ll
l-free st
-free st-free st
-free state
ateate
ate at the output contact
1
11
1 - o
oo
on
nn
n , v
vv
vo
oo
olt
ltlt
ltage s
age sage s
age sta
tata
tate
tete
te at the output contact
st
stst
stat
atat
atu
uu
us
s s
s o
oo
of se
f sef se
f sen
nn
ns
ss
sor type
or type or type
or type M
MM
M depend
depend depend
dependi
ii
ing
ng ng
ng o
oo
on p
n pn p
n po
oo
os
ss
sit
itit
iti
ii
io
oo
on
n n
n o
oo
of t
f tf t
f the
he he
he sp
spsp
spo
oo
oo
oo
ol
ll
l
S
S S
Supp
uppupp
upply
ly ly
ly v
vv
vo
oo
olt
ltlt
ltage r
age rage r
age ra
aa
ange
nge nge
nge o
oo
of t
f tf t
f the
he he
he se
sese
sen
nn
ns
ss
sor
oror
or 2
22
24
4 4
4 V
VV
VD
DD
DC
CC
C
exter
exterexter
extern
nn
na
aa
al t
l tl t
l thre
hrehre
hread
ad ad
ad M
MM
M1
11
12
22
2x
xx
x1
11
1 ; 4 p
4 p4 p
4 po
oo
ole
lele
les
ss
s ( pi
pipi
pin
nn
ns
ss
s )
Se
Se Se
Sen
nn
ns
ss
sor c
or cor c
or co
oo
on
nn
nnect
nectnect
necti
ii
io
oo
on
n n
n type
typetype
type
M
MM
Ma
aa
ax se
x sex se
x sen
nn
ns
ss
sor
or or
or l
ll
lo
oo
oad c
ad cad c
ad curre
urreurre
urren
nn
nt
tt
t 4
44
40
00
00 mA
0 mA0 mA
0 mA
nie zaleca się podłączania
Degree of pr
Degree of prDegree of pr
Degree of pr o
oo
otecti
tectitecti
tectio
oo
on
nn
n I
I I
IP
P P
P 6
66
65
55
5
max 1,8
kg
Se
SeSe
Sen
nn
ns
ss
sor type
or type or type
or type M
MM
M
T
TT
Type of sp
ype of spype of sp
ype of spo
oo
oo
oo
ol p
l pl p
l po
oo
os
ss
sit
itit
iti
ii
io
oo
on
n n
n se
sese
sen
nn
ns
ss
sor
oror
or a
a a
a se
sese
sen
nn
ns
ss
sor
or or
or w
ww
wit
itit
ith
h h
h tw
twtw
two
o o
o a
aa
alter
lterlter
ltern
nn
nat
atat
ati
ii
ive
ve ve
ve P
PP
PN
NN
NP type
P type P type
P type o
oo
ou
uu
utpu
tputpu
tputs
tsts
ts :
n
n n
norm
ormorm
orma
aa
al
ll
lly c
ly cly c
ly cl
ll
lo
oo
osed - p
sed - psed - p
sed - pi
ii
in
n n
n 2
22
2
n
nn
norm
ormorm
orma
aa
al
ll
lly
ly ly
ly ope
opeope
open
nn
n - pi
pipi
pin
n n
n 4
44
4
WA
WAWA
WAR
RR
RN
NN
NI
II
IN
NN
NG
GG
G :
: :
: M
MM
M type i
type i type i
type ind
ndnd
nduct
uctuct
ucti
ii
ive se
ve seve se
ve sen
nn
ns
ss
sor
oror
ors m
s ms m
s mu
uu
ust
st st
st n
nn
no
oo
ot be co
t be cot be co
t be con
nn
nnected ser
nected sernected ser
nected ser i
ii
ia
aa
al
ll
lly.
ly.ly.
ly.
+20%
-10%
Spool position sensor type M
D
DD
Di
ii
iagr
agragr
agram
am am
am o
oo
of electr
f electrf electr
f electric
icic
ica
aa
al c
l cl c
l co
oo
on
nn
nnect
nectnect
necti
ii
io
oo
on
n n
n o
oo
of i
f if i
f ind
ndnd
nduct
uctuct
ucti
ii
ive se
ve seve se
ve sen
nn
ns
ss
sor
oror
or
contact allocation (pins of
sensor connector)
D
DD
Di
ii
iagr
agragr
agram
amam
ams f
s fs f
s for d
or dor d
or direct
irectirect
irecti
ii
io
oo
on
nn
na
aa
al c
l cl c
l co
oo
on
nn
ntro
trotro
trol
l l
l v
vv
va
aa
al
ll
lves
ves ves
ves a
aa
and
nd nd
nd st
stst
stat
atat
atu
uu
us
s s
s o
oo
of se
f sef se
f sen
nn
ns
ss
sor
oror
ors
ss
s
2
4
1
3
1
2
3
4
PNP
OPTIONAL ACCESSORIES FOR THE DIRECTIONAL VALVE

Type WEH22
WK 460 110 09.2017 - 18 -
a
AB
PT
a 0
G
2
22
2-p
-p-p
-po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n ( a
aa
a , 0
00
0 ), s
ss
sprin
prinprin
pring
gg
g c
c c
cen
enen
ent
tt
tered
eredered
ered
v
vv
vers
ersers
ersi
ii
io
oo
on
nn
ns
ss
s .
..
..
..
..
..
.M
MM
M0
00
0.
..
..
..
..
..
.
0
00
0 position monitoring (sensor at the b
bb
b side)
2
22
2-p
-p-p
-po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n ( 0
00
0 , b
bb
b ), s
ss
sprin
prinprin
pring
gg
g c
c c
cen
enen
ent
tt
tered
eredered
ered
v
vv
vers
ersers
ersi
ii
io
oo
on
nn
ns
ss
s .
..
..
..
.MB
MBMB
MB.
..
..
..
..
..
.
b
bb
b position monitoring (sensor at the a
aa
a side)
2
22
2-p
-p-p
-po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n ( 0
00
0 , b
bb
b ), s
ss
sprin
prinprin
pring
gg
g c
c c
cen
enen
ent
tt
tered
eredered
ered
v
vv
vers
ersers
ersi
ii
io
oo
on
nn
ns
ss
s .
..
..
..
..
..
.M
MM
M0
00
0.
..
..
..
..
..
.
0
00
0 position monitoring (sensor at the a
aa
a side)
b
AB
PT
b0
G
1
0
1
0
050100
pin 2
pin 4
a
a a
a spool position [%] 0
00
0
switch
on side b
bb
b
1
0
1
0
0
50
100
pin 2
pin 4
a
a a
a spool position [%] 0
0 0
0
switch
on side b
bb
b
1
0
1
0
100
500
pin 2
pin 4
0
0 0
0 spool position [%] b
b b
b
switch
on side a
aa
a
1
0
1
0
100
50
0
pin 2
pin 4
0
00
0 spool position [%] b
bb
b
switch
on side a
aa
a
3
33
3-p
-p-p
-po
oo
os
ss
sit
itit
iti
ii
io
oo
on
nn
n , hydr
hydr hydr
hydra
aa
au
uu
ul
ll
lic
icic
ica
aa
al
ll
lly ce
ly cely ce
ly cen
nn
ntered
teredtered
tered
vers
versvers
versi
ii
io
oo
on
nn
ns ...
s ...s ...
s ...M
MM
MA...
A...A...
A...
a
aa
a position monitoring (sensor at the b
bb
b side)
3
33
3-p
-p-p
-po
oo
os
ss
sit
itit
iti
ii
io
oo
on
nn
n hy
hyhy
hydrau
draudrau
draul
ll
lic
icic
ical
alal
ally
lyly
ly c
c c
cen
enen
ent
tt
tered
eredered
ered
v
vv
vers
ersers
ersi
ii
io
oo
on
nn
ns
ss
s .
..
..
..
..
..
. MB...
MB...MB...
MB...
b
bb
b position monitoring (sensor at the b
bb
b side)
1
0
1
0
0 5050 100
100
pin 2
pin 4
a
aa
a spool position [%] b
bb
b
switch
on side b
b b
b
1
0
1
0
0 5050 100
100
pin 2
pin 4
a spool position [%] b
switch
on side b
bb
b
ab
A B
PT
a b0
G
1
0
1
0
050100
pin 2
pin 4
a
a a
a spool position [%] 0
00
0
switch
on side b
b b
b
1
0
1
0
050
100
pin 2
pin 4
a
aa
a spool position [%] 0
0 0
0
switch
on side b
2
22
2-p
-p-p
-po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n ( a
aa
a , 0
00
0 ), s
ss
sprin
prinprin
pring
gg
g c
c c
cen
enen
ent
tt
tered
eredered
ered
v
vv
vers
ersers
ersi
ii
io
oo
on
nn
ns
ss
s .
..
..
..
..
..
.MA.
MA.MA.
MA..
..
..
..
.
a
aa
a position monitoring (sensor at the b
bb
b side)
2
22
2-p
-p-p
-po
oo
os
ss
sit
itit
iti
ii
io
oo
on
nn
n ( a
aa
a , 0
00
0 ) , hydr
, hydr, hydr
, hydra
aa
au
uu
ul
ll
lic
icic
ica
aa
al
ll
lly ce
ly cely ce
ly cen
nn
ntered
teredtered
tered
vers
versvers
versi
ii
io
oo
on
nn
ns ...
s ...s ...
s ...M
MM
MA...
A...A...
A...
a
aa
a position monitoring (sensor at the b
bb
b side)
2
22
2-p
-p-p
-po
oo
os
ss
sit
itit
iti
ii
io
oo
on
nn
n ( a
aa
a , 0
00
0 ) , hydr
hydr hydr
hydra
aa
au
uu
ul
ll
lic
icic
ica
aa
al
ll
lly ce
ly cely ce
ly cen
nn
ntered
teredtered
tered
vers
versvers
versi
ii
io
oo
on
nn
ns ...
s ...s ...
s ...M
MM
M0...
0...0...
0...
0
00
0 position monitoring (sensor at the b
bb
b side)
2
22
2-p
-p-p
-po
oo
os
ss
sit
itit
iti
ii
io
oo
on
nn
n ( 0
00
0 , b
bb
b ), hydr
hydr hydr
hydra
aa
au
uu
ul
ll
lic
icic
ica
aa
al
ll
lly ce
ly cely ce
ly cen
nn
ntered
teredtered
tered
vers
versvers
versi
ii
io
oo
on
nn
ns
ss
s ...
......
...M
MM
M0...
0...0...
0...
0
00
0 position monitoring (sensor at the b
b b
b side)
2
22
2-p
-p-p
-po
oo
os
ss
sit
itit
iti
ii
io
oo
on
nn
n ( 0
00
0 , b
bb
b ), hydr
hydr hydr
hydra
aa
au
uu
ul
ll
lic
icic
ica
aa
al
ll
lly ce
ly cely ce
ly cen
nn
ntered
teredtered
tered
vers
versvers
versi
ii
io
oo
on
nn
ns ...
s ...s ...
s ...MB...
MB...MB...
MB...
b
bb
b position monitoring (sensor at the b
bb
b side)
a
A B
PT
a 0
G
b
A B
PT
b0
G
1
0
1
0
0 50 100
pin 2
pin 4
switch
on side b
bb
b
0
00
0 spool position [%] b
bb
b
1
0
1
0
100
50
0
pin 2
pin 4
0
0 0
0 spool position[%] b
b b
b
switch
on side b
b b
b
1
0
1
0
0
50
100
pin 2
pin 4
a
a a
a spool position [%] b
b b
b
switch
on side a
aa
a
1
0
1
0
0
50
100
pin 2
pin 4
a
a a
a spool position [%] b
b b
b
switch
on side a
aa
a
2
22
2-p
-p-p
-po
oo
os
ss
sit
itit
iti
ii
io
oo
on
nn
n ( a
aa
a , b
bb
b ) s
ss
sprin
prinprin
pring
gg
g p
pp
po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
one
nene
ned
dd
d
v
vv
vers
ersers
ersi
ii
io
oo
on
nn
ns
ss
s ...
......
...MB...
MB...MB...
MB...
b
bb
b position monitoring (sensor at the a
aa
a side)
2
22
2-p
-p-p
-po
oo
os
ss
sit
itit
iti
ii
io
oo
on
nn
n ( a
aa
a , b
bb
b ), spri
sprispri
spring p
ng png p
ng po
oo
os
ss
sit
itit
iti
ii
io
oo
oned
nedned
ned
vers
vers vers
versi
ii
io
oo
on
nn
ns ...
s ...s ...
s ...M
MM
MA...
A...A...
A...
a
a a
a position monitoring (sensor at the a
aa
a side)
ab
AB
PT
a b
G
di
didi
diagr
agragr
agram f
am fam f
am for
oror
or
direct
directdirect
directi
ii
io
oo
on
nn
na
aa
al c
l cl c
l co
oo
on
nn
ntro
trotro
trol
ll
l
v
vv
va
aa
al
ll
lve
veve
ve
0
00
0 - o
oo
off
ffff
ff , ne
ne ne
neu
uu
utra
tratra
tral
ll
l , pote
pote pote
poten
nn
nti
titi
tia
aa
al
ll
l-free st
-free st-free st
-free state
ateate
ate at the output contact
1
11
1 - o
oo
on
nn
n , v
vv
vo
oo
olt
ltlt
ltage s
age sage s
age sta
tata
tate
tete
te at the output contact
st
stst
stat
atat
atu
uu
us
s s
s o
oo
of se
f sef se
f sen
nn
ns
ss
sor type
or type or type
or type M
MM
M depend
depend depend
dependi
ii
ing
ng ng
ng o
oo
on p
n pn p
n po
oo
os
ss
sit
itit
iti
ii
io
oo
on
n n
n o
oo
of t
f tf t
f the
he he
he sp
spsp
spo
oo
oo
oo
ol
ll
l
OPTIONAL ACCESSORIES FOR THE DIRECTIONAL VALVE
D
DD
Di
ii
iagr
agragr
agram
amam
ams f
s fs f
s for d
or dor d
or direct
irectirect
irecti
ii
io
oo
on
nn
na
aa
al c
l cl c
l co
oo
on
nn
ntro
trotro
trol
l l
l v
vv
va
aa
al
ll
lves
ves ves
ves a
aa
and
nd nd
nd st
stst
stat
atat
atu
uu
us
s s
s o
oo
of se
f sef se
f sen
nn
ns
ss
sor
oror
ors
ss
s

Type WEH22 WK 460 110 09.2017- 19 -
2
22
2-p
-p-p
-po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n ( a
aa
a , b
bb
b ), hy
hyhy
hydrau
draudrau
draul
ll
lic
icic
ical
alal
ally
lyly
ly p
pp
po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
one
nene
ned
dd
d
v
vv
vers
ersers
ersi
ii
io
oo
on
nn
ns
ss
s .
..
..
..
..
..
.MB
MBMB
MB.
..
..
..
..
..
.
b
bb
b position monitoring (sensor at the a
aa
a side)
1
0
1
0
pin 2
pin 4
1
0
1
0
0
50
100
pin 2
pin 4
a
aa
a spool position[%] b
bb
b
switch
on side a
aa
a
switch
on side b
b b
b
1
0
1
0
050
100
pin 2
pin 4
a
a a
a spool position[%] b
bb
b
switch
on side a
aa
a
2
22
2-p
-p-p
-po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n ( a
aa
a,
,,
, b
bb
b ), hy
hyhy
hydrau
draudrau
draul
ll
lic
icic
ical
alal
ally
lyly
ly p
pp
po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
one
nene
ned
dd
d , v
vv
vers
ersers
ersi
ii
io
oo
on
nn
ns
ss
s .
..
..
..
..
..
.MAB.
MAB.MAB.
MAB..
..
..
..
.
a
aa
a and b
bb
b position monitoring (sensor at a
aa
a and b
bb
b sides)
ab
AB
P
T
ab
G G
ab
AB
a b
G
PT
ab
AB
a b
G
P T
2
22
2-p
-p-p
-po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
on
nn
n ( a
aa
a , b
bb
b ), hy
hyhy
hydrau
draudrau
draul
ll
lic
icic
ical
alal
ally
lyly
ly p
pp
po
oo
os
ss
si
ii
it
tt
ti
ii
io
oo
one
nene
ned
dd
d
v
vv
vers
ersers
ersi
ii
io
oo
on
nn
ns
ss
s .
..
..
..
..
..
.MA.
MA.MA.
MA..
..
..
..
.
a
aa
a position monitoring (sensor at the b
bb
b side)
1
0
1
0
050
100
pin 2
pin 4
a
a a
a spool position[%] b
bb
b
switch
on side b
b b
b
0
00
0 - o
oo
off
ffff
ff , ne
ne ne
neu
uu
utra
tratra
tral
ll
l , pote
pote pote
poten
nn
nti
titi
tia
aa
al
ll
l-free st
-free st-free st
-free state
ateate
ate at the output contact
1
11
1 - o
oo
on
nn
n , v
vv
vo
oo
olt
ltlt
ltage s
age sage s
age sta
tata
tate
tete
te at the output contact
st
stst
stat
atat
atu
uu
us
s s
s o
oo
of se
f sef se
f sen
nn
ns
ss
sor type
or type or type
or type M
MM
M depend
depend depend
dependi
ii
ing
ng ng
ng o
oo
on p
n pn p
n po
oo
os
ss
sit
itit
iti
ii
io
oo
on
n n
n o
oo
of t
f tf t
f the
he he
he sp
spsp
spo
oo
oo
oo
ol
ll
ldi
didi
diagr
agragr
agram f
am fam f
am for
oror
or
direct
directdirect
directi
ii
io
oo
on
nn
na
aa
al c
l cl c
l co
oo
on
nn
ntro
trotro
trol
ll
l
v
vv
va
aa
al
ll
lve
veve
ve
a
aa
a
b
bb
b
X
XX
XA
AA
AB
BB
B
90 (max)
444 (max)
265
46
3-position with the main spool spring centered
a
aa
a , b
b b
b or 0
00
0 position monitoring, sensor at the a
a a
a and b
bb
b sides
versions: ...4WEH22.../...- M
MM
MAB
ABAB
AB ...
...4WEH22.../ ...- M
MM
M0..
0..0..
0.. .
N
NN
NO
OO
OT
TT
TE
EE
E:
::
:
( *
**
* ) - distance for mounting the plug-in connector and
the sensor cable (the plugs not shown on the
drawing, supplied on a separate order acc. to
data sheet
W
WW
WK
KK
K 4
44
49
99
99
99
9 9
99
96
66
63
33
3 ).
N
NN
NO
OO
OT
TT
TE
EE
E : other dimensions, descriptions of elements of the valve drawing, porting pattern and required state of the
connection surface - see page 9
...4WEH22.../... -
- -
- M
MM
MAB
ABAB
AB ...
...4WEH22.../... -
- -
- M
MM
M0
00
0 ...
N
NN
NO
OO
OT
TT
TE
EE
ES:
S:S:
S:
• t
tt
the
he he
he v
vv
va
aa
al
ll
lve
ve ve
ve w
ww
wit
itit
ith
h h
h t
tt
the
he he
he sp
spsp
spo
oo
oo
oo
ol p
l pl p
l po
oo
os
ss
sit
itit
iti
ii
io
oo
on
n n
n se
sese
sen
nn
ns
ss
sor
or or
or h
hh
ha
aa
as been
s beens been
s been
fact
fact fact
fact ory c
ory cory c
ory ca
aa
al
ll
libr
ibribr
ibrated,
ated, ated,
ated, a
aa
any f
ny fny f
ny furt
urturt
urther
her her
her adj
adjadj
adju
uu
ustme
stmestme
stmen
nn
nts
ts ts
ts w
ww
wit
itit
ith
h h
h i
ii
in
n n
n t
tt
the
hehe
he
v
v v
va
aa
al
ll
lve c
ve cve c
ve ca
aa
an be m
n be mn be m
n be made
ade ade
ade o
oo
on
nn
nly by t
ly by tly by t
ly by the pr
he prhe pr
he prod
odod
oducer
ucerucer
ucer
• i
i i
in c
n cn c
n ca
aa
ase
se se
se o
oo
of a
f af a
f any defect
ny defect ny defect
ny defect o
oo
of t
f tf t
f the
he he
he se
sese
sen
nn
ns
ss
sor
or or
or or t
or tor t
or the
he he
he v
vv
va
aa
al
ll
lve, t
ve, tve, t
ve, the
hehe
he
w
w w
wh
hh
ho
oo
ole
le le
le v
vv
va
aa
al
ll
lve s
ve sve s
ve sh
hh
ho
oo
ou
uu
uld be rep
ld be repld be rep
ld be repl
ll
laced
acedaced
aced
OVERALL DIMENSIONS OF THE VALVE
WITH OPTIONAL ACCESSORIES
versions with a spool position sensor type M
N
NN
NO
OO
OT
TT
TE
EE
E:
::
: in compliance with P
PP
PN
NN
N -
- -
- E
EE
EN
NN
N 6
66
69
99
93
33
3 , the valve should not be equipped with a manual override button.
M12 x 1
OPTIONAL ACCESSORIES FOR THE DIRECTIONAL CONTROL VALVE
D
DD
Di
ii
iagr
agragr
agram
amam
ams f
s fs f
s for d
or dor d
or direct
irectirect
irecti
ii
io
oo
on
nn
na
aa
al c
l cl c
l co
oo
on
nn
ntro
trotro
trol
l l
l v
vv
va
aa
al
ll
lves
ves ves
ves a
aa
and
nd nd
nd st
stst
stat
atat
atu
uu
us
s s
s o
oo
of se
f sef se
f sen
nn
ns
ss
sor
oror
ors
ss
s
132
70 (min)

Type WEH22
WK 460 110 09.2017 - 20 -
3-position with the main spool spring centered
a
aa
a position monitoring, sensor at the B
BB
B side
version ...4WEH22.../...- M
MM
MA
AA
A ...
3-position with the main spool spring centered
b
bb
b position monitoring, sensor at the A
AA
A side
version ...4WEH22.../...- MB
MBMB
MB.
..
..
..
..
..
.
...4WEH22.../... -
- -
- M
MM
MA
AA
A ... ...4WEH22.../...
-
- -
- MB
MBMB
MB ...
OVERALL DIMENSIONS OF THE VALVE
WITH OPTIONAL ACCESSORIES
versions with a spool position sensor type M
N
NN
NO
OO
OT
TT
TE
EE
E : other dimensions, description of elements of the valve drawing, porting pattern and required state of the
connection surface - see page 9, 19
a
aa
a
b
bb
b
X
XX
XA AA
AB
BB
B
347 (max)
a
aa
a
b
bb
b
X
XX
XA AA
AB
BB
B
347 (max)
125132
125 132
2-position ( a
aa
a , 0
00
0 ) with the main spool spring positioned
a
aa
a or 0
0 0
0 position monitoring, sensor at the B
BB
B side
versions: ...4WEH22.../ ...- M
MM
MA
AA
A ...;
...4WEH22.../ ...- M
MM
M0...
0...0...
0...
2-position ( 0
00
0 , b
bb
b ), with the main spool spring positioned
b
bb
b or 0
0 0
0 position monitoring, sensor at the A
AA
A side
versions: ...4WEH22.../ ...- MB
MBMB
MB ...;
...4WEH22.../ ...- M
MM
M0
00
0 ...
...4WEH22... A
AA
A .../... -
- -
- M
MM
M0
00
0 ... ...4WEH22...
B
BB
B .../... -
- -
- M
MM
M0
00
0 ...
...4WEH22... A
AA
A .../... -
- -
- M
MM
MA
AA
A ... ...4WEH22...
B
BB
B .../... -
- -
- MB
MBMB
MB ...
a
aa
a
X
XX
XA
AA
AB
BB
B
133125
347 (max)
b
bb
b
X
XX
XA
AA
AB
BB
B
125132
347 (max)