Solenoid Operated Spool Valve, ISO size 5
Direct Acting
Series WEDE ...
Reference: 400--P--185210--EN--A/09.15
1/4 430.20.60.80
Replaces: W--31.10A
Classification:
S 315 bar, 120 l/min
S Special opening geometry, high
switching per formance
S High flow rates
S Good ∆p --Q values: no narrowing of
flow paths in energised position
S Slip --on coils: coils can be changed
without opening the hydraulic
envelope.
S Mounting interface to ISO 4401 /
CETOP R35H size 5, NFPA D05,
DIN 24 340 A10
1. Description
Series WEDE ...-- 10 solenoid operated
spool valves are direct acting units.
The principal components of the valve
are a cast body, a spool with centering
springs and wet ar mature solenoids
with high--pressure core tubes and
slip-- on coils. A coil can be replaced or
the voltage changed without opening
the hydraulic envelope. These valves
are optionally available in version with
adjustable switching times
2. Symbols
1
WEDE--42--A--10 WEDE--42--AD--10
W E D E -- 4 2 -- A G -- 1 0
W E D E -- 4 2 -- B D -- 1 0
W E D E -- 4 2 -- B G -- 1 0
W E D E -- 4 3 -- D -- 1 0
W E D E -- 4 3 -- G -- 1 0
A B
PT
a
AB
PT
b
AB
PT
a
AB
PT
b
AB
PT
b
a
W E D E -- 4 2 -- B N -- 1 0
AB
PT
a
AB
PT
b
AB
PT
b
a
W E D E -- 4 2 -- A H -- 1 0 W E D E -- 4 2 -- B H -- 1 0 W E D E -- 4 3 -- H -- 1 0
AB
PT
a
AB
PT
b
AB
PT
b
a
W E D E -- 4 2 -- A J -- 1 0 W E D E -- 4 2 -- B J -- 1 0 W E D E -- 4 3 -- J -- 1 0
AB
PT
a
AB
PT
b
AB
PT
b
a
2
3
4
8
7
9
10
11
16
17
22
23
14
15
20
21
13 19
AB
PT
b
W E D E -- 4 2 -- B -- 1 0
AB
PT
b
W E D E -- 4 2 -- A N -- 1 0
AB
PT
a
W E D E -- 4 2 -- A G G -- 1 0 W E D E -- 4 2 -- B G G -- 1 0
AB
PT
b
AB
PT
W E D E -- 4 3 -- G G -- 1 0
ba
Crossover transients
4/2 FUNCTIONS
4/2 FUNCTIONS
WITH 4/3 SPOOLS
4/2 FUNCTIONS
WITH 4/3 SPOOLS
4/3 FUNCTIONS
400--P--185210--EN--A/09.15
2/ 4
3. Characteristics
Type 4/2 and 4/3 solenoid controlled spool valves
Design direct acting
Mounting method manifold mounting
Size nominal size 10 mm, ISO 4401 size 5 interface
Mass kg 4,8 (1 solenoid), 6,3 (2 solenoids)
Mounting attitude horizontal recommended
(vertical mounting makes purging of air more difficult)
Flow direction see symbols
Operating pressure in P, A und B bar max. 315
Operating pressure in T bar max. 160
Flow rate Qmax l/min 120, see Performance Data
Fluids Hydraulic oils HL and HLP to DIN 51 524
Fluid temperature range _C --25 ... + 80
Ambient temperature _C --25 ... + 50
Viscosity range cSt 10 ... 500, recommended 15 ... 250
Minimum fluid cleanless 18/14 to ISO 4406 /CETOP RP70H 8 ... 9 to NAS 1638
Magnet type high pressure, wet ar mature type (with slip--on coils)
Standard voltages VDC 12 / 24 / 98 / 196 -- for other voltages -- contact BUCHER
Nom. voltage tolerance % ±10
Nom. power consumption W 39
Duty cycle % 100
Enclosure protection IP 65 to DIN 40 050
Electrical connection 3-- pin square plug to DIN 43 650 / ISO 4400;
can be turned 4 x 90°
4. Performance graphs
Oil viscosity 33 cSt
→∆p(bar)
→ Q(l/min)
∆p -- Q characteristics
→∆p(bar)
→ Q(l/min)
16
14
12
10
8
6
4
2
200
175
150
125
100
75
50
25
350
200
250
200
150
100
50
20 40 60 80 100 120
10 20 30 40 80706050
20 40 60 80 100 120
Performance limits
A/Bspools
DKolben
G spool
H spool
J spool
3356
-- -- -- -- 5 6
-- -- -- -- -- -- -- --
2218
AN / BN spool
2245
GG spool
3367
1167
-- -- -- -- 9 9
2256
Solenoid
OFF
ON
2245----
-- --
-- --
-- --
-- --
3
-- --
-- --
-- --
8
A / AN spools
BN / H spools
G spool
J spool
2
4
B / D spools
3
GG spool
1
5
5
→∆p(bar)
→ Q(l/min)
A ⇒ T
P ⇒ A
P ⇒ B
P ⇒ T
B ⇒ T
∆p -- Q characteristics
Switching times
at 60 l/min and 160 bar:
Energising
De-- energising
160 ms
45 ms
The quoted max. flow rates apply when
the flows passing through the valve are
equal in both directions (symmetrical).
For non --symmetrical flows, the max.
rates are substantially reduced, in worst
cases to only 1/3 of the above values.
OFF
ON
OFF
ON
400--P--185210--EN--A/09.15
3/ 4
5. Dimensions
ø65
215
107
97 11
ø65
215
107
9711
13
approx. 115
71
36
30
10
ø65
107 97 107
311
21,5 54
46 12
110
PG 9
70
ø 15,6
1,3
P
AB
TT
PG 9
PG 9
PG 9
Plug can be
turned 4 x 90
_
Coil can be
secured at
any angle
through
360
_
supplied complete with
4 hex. skt. cap screws
M6 x 40. Tightening torque
Ma = 8 ... 10 Nm
to remove
the coil
Manual override
at solenoid end(s)
4/2 function, B v alve4/2 function, A v alve
to remove
the plug
Nameplate
ISO 4401 s ize 5 interface
Solenoid a
Solenoid b
Solenoid a
Solenoid b
4/3 function
6. Schematic section
Sealkit No. DS--122--V, comprising *):
Itm.
Qty. Qty. Description Size
2 5 5*) O--ring no. 014 ∅ 12,42 x 1,78 Viton
1 2 2*) O--ring no. 118 ∅ 21,89 x 2,62 Viton
4 1 2*) O--ring ∅ 30 x 2,00 N70
5 1 1*) O--ring ∅ 30 x 2,00 N70
4/3 Valves (2 Solenoids)
4/2 Valves (1 Solenoid)
4321
Handnot--
betätigung
400--P--185210--EN--A/09.15
4/ 4
7. Installation and servicing
All installation and servicing must be
carried out with care, and by qualified
personnel only. The following points
must be observed: ”A”(and ”B”)spools
must not be reversed, or the function
P⇒A/B⇒T will become P⇒B/A⇒T
(and vice versa for ”B”). All other spools
are symmetrical, but should always be
reassembled with their original orienta-
tion, in any case. When changing
seals, the new seals must be thor-
oughly oiled or greased before they are
fitted. Use the specified tightening
torques when fitting the spring cap, DC
and the core tube. At installation, make
sure that the valve interface aligns with
the interface of the mating surface, and
use the specified tightening torque
when fitting the valve mounting bolts.
8. Model code key
WEDE
43-- -- D -- 1 0 -- V -- 1 24 VDC
Direct solenoid operated directional valve
42
43
A
AN
B
BN
AD / AG / AH / AJ / AGG
BD / BG / BH / BJ / BGG
D/G/H/J/GG
10
V
Special seals by arrangement
1 ... 9
Voltage and current plainly specified
=
=
=
=
=
=
=
=
=
=
=
=
4/2 function with 4/3 spool,
solenoid at a--end
4/2 function with 4/3 spool,
solenoid at b--end
4/3 function
4/2 function
4/3 function
4/2 function, overlap X--over
4/2 function, underlap X--over
nominal size 10 mm (ISO size 5 interface)
Viton seals (Standard)
design number (omit when ordering new units)
4/2 function, overlap X--over
4/2 function, underlap X--over
9. Related data sheets
Old no. New no.
i--41 400-- P-- 050101-- E DIN 24 340 size A10 interface
E 2015 by Bucher Hydraulics AG Frutigen, CH-3714 Frutigen
www.bucherhydraulics.cominfo.ch@bucherhydraulics.com
All rights reserved.
Data is provided for the purpose of product description only, and must not be construed as warranted characteristics in the legal sense. The
information does not relieve users from the duty of conducting their own evaluations and tests. Because the products are subject to continual
improvement, we reserve the right to amend the product specifications contained in this catalogue.
