Type WEH22
WK 460 110 09.2017
- 31 -
HOW TO ORDER
Coding example: H- 4 WEH22 E 13/G24 N ET Z4
*
Further requirements in clear text
(to be agreed with the manufacturer)
Pressure ratio valve
without pressure ratio valve =
no designation
with pressure ratio valve = D1
Pre-load valve
without pre-load valve =
no designation
pre-load valve with cracking pressure 0,45 MPa = P 4,5
pre-load valve with cracking pressure 0,7 MPa = P 7
Throttle insert in port P of the pilot valve
without throttle insert
=
no designation
throttle insert
φ
0,8
= B 08
throttle insert
φ
1,0 = B 10
throttle insert
φ
1,2 = B 12
Accessories
NO
NO
NO
NOT
TT
TE:
E:
E:
E:
versions with M
M
M
M
type spool position sensor available only with options: ...1
1
1
11
1
1
1
... and ...1
1
1
12
2
2
2
...
(see page 22)
without accessories
=
no designation
stroke limiter at the A
A
A
A
and B
B
B
B
side
= 10
stroke limiter at the A *
A *
A *
A *
side
= 11
stroke limiter at the B
B
B
B **
**
**
**
side
= 12
end position monitor contact creaker at the A
A
A
A
side
= 18
end position monitor contact breaker at the B
B
B
B
side (not applicable
for 2-position valvves with spring positioning
) = 19
stroke limiter at the A
A
A
A
side
and end position monitor contact breaker at the B
B
B
B
side
= 20
stroke limiter at the B
B
B
B
side
and end position monitor contact breaker at the A
A
A
A
side
= 21
end position monitor contact maker at the A
A
A
A
side
= 22
end position monitor contact maker at the B
B
B
B
side (not applicable
for 2-position valves with spring positioning
)
= 23
stroke limiter at the A
A
A
A
side
and end position monitor contact maker at the B
B
B
B
side
= 24
stroke limiter at the B
B
B
B
side
and end position monitor contact maker at the A
A
A
A
side
= 25
Sealing
NBR
(for fluids on mineral oil base) =
no designation
FKM (for fluids on phosphate ester base) = V
M type spool position sensor
without position sensor
=
no designation
0
0
0
0
position monitoring - zero
(3-position versions, spring centered
and 2-position versions (aaaa, 0
00
0
) or (0
00
0
, b
b
b
b
))
= M0
a
aa
a
position monitoring (3-position versions with aaaa single sensor at the b
b
b
b
side
and 2-position versions (aaaa, 0
00
0
) or (aaaa, b
b
b
b
) )
= MA
b
b
b
b
position monitoring
(3-position versions with one sensor
and 2-position versions (0
00
0
, b
b
b
b
) or (aaaa, b
b
b
b
) )
= MB
a
aa
a
and b
b
b
b
position monitoring
(3-position spring centered versions)
and 2-position hydraulically positioned versions
with two sensors at the aaaa and b
b
b
b
side
= MAB
The directional valve should be ordered according to the above coding.
T
TT
The
he
he
he symbo
symbo
symbo
symbolllls
s
s
s iiiin b
n b
n b
n bo
o
o
old
ld
ld
ld iiiind
nd
nd
ndic
ic
ic
icate t
ate t
ate t
ate the preferred vers
he preferred vers
he preferred vers
he preferred vers iiiio
o
o
on
n
n
ns,
s,
s,
s, a
aa
av
vv
va
aa
aiiiillllab
ab
ab
able
le
le
le iiiin
n
n
n ssssh
h
h
hort de
ort de
ort de
ort delllliiiivery t
very t
very t
very time.
ime.
ime.
ime.
N
N
N
NO
O
O
OT
TT
TE
EE
ES:
S:
S:
S:
Optional accessories for versions with
M
M
M
M
type sensor:
(
****
) - option ...
11
11
11
11
... available only for ...
MA.
MA.
MA.
MA.
.. in a 3-position version (sensor at the side of port
B
B
B
B
;
a
a
a
a
position monitoring)
(
**
**
**
**
) - option ...
12
12
12
12
... available only for ...
MB
MB
MB
MB
... in a 3-position version (sensor at the side of port
A
A
A
A
;
b
b
b
b
position monitoring)
