1/5
Type series: WSP22GNA3…
Reference: 400-P-120801-EN-01/02.2023
- Screw-in cartridge valve
- For cavity AL
- All external parts with zinc-nickel plating according to
DIN EN ISO 19598
- Can be used as a high-pressure pilot valve
- With bidirectional seat-valve shut-o
- Low head loss
- Compact construction
- Installation in threaded port body type GALA
- De-energized closed
- "Low watt" version
- The slip-on coil can be rotated, and it can be replaced
without opening the hydraulic envelope
- High pressure wet-armature solenoids
- Various plug-connector systems and voltages are
available
Directional valve
2-way/2-position
Q
max
= 15 l/min, p
max
= 420 bar
switching solenoid, direct acting, poppet type
Type series: WSP22GNA3…
Description
The 2-way/2-position solenoid operated directional
seat valves, series WSP22G…, are size 3, pressure
balanced screw-in valves with a 3/4-16 UNF moun-
ting thread. They are designed on the poppet/seat
principle, and are therefore virtually leak-free in both
directions of ow (bidirectional seat-valve shut-o).
They are tted with a low-watt coil (nominal power
consumption 8 W). The straightforward design delivers
an outstanding price/ performance ratio. All external
parts of the screw-in valves are zinc-nickel plated, and
are thus suitable for use in the harshest operating en-
vironments. The slip-on coils can be replaced without
opening the hydraulic envelope and can be positioned
at any angle through 360°. These valves are primarily
used as pilot valves in certain mobile and industrial
applications where leak-tight shut-o functions are
crucially important. Examples are where loads, tensi-
ons, or clamping forces must be held without leakage.
For self-assembly, please refer to the section related
data sheets.
Symbol
2
1
2/5
Type series: WSP22GNA3…
Reference: 400-P-120801-EN-01/02.2023
Technical data
General characteristics Description, value, unit
Function group Directional valve
Function 2-way/2-position
Design Screw-in cartridge valve
Controls switching solenoid
Characteristic direct acting, poppet type
Construction size NG 3
Thread size 3/4-16 UNF-2A
Mounting attitude unrestricted
Weight 0.40 kg
Cavity acc. factory standard For cavity AL
Tightening torque steel 60 Nm
Tightening torque aluminium 60 Nm
Tightening torque tolerance ± 10 %
Minimum ambient temperature - 25 °C
Maximum ambient temperature + 50 °C
Surface protection
All external parts with zinc-nickel plating according to DIN EN
ISO 19598
Sealing material see ordering code
Seal kit order number NBR: DS-246-N / FKM: DS-246-V
Hydraulic characteristics Description, value, unit
Maximum operating pressure 420 bar
Maximum ow rate 15 l/min
Flow direction see symbol
Hydraulic uid
HL and HLP mineral oil according to DIN 51 524; other uids
on request!
Minimum uid temperature - 25 °C
Maximum uid temperature + 80 °C
Viscosity range 10 … 500 mm²/s (cSt)
Recommended viscosity range 15 … 250 mm²/s (cSt)
Minimum uid cleanliness (cleanlineless class according to ISO
4406:1999)
class 20/18/15
Electric characteristics Description, value, unit
Actuator type solenoid coil
Solenoid coils type D36
Supply voltage DC 12/24 V DC
Supply voltage AC 115/230 (50 … 60 Hz) V AC
Maximum permissible power consumption V DC = 27 W / V AC = 25 W
Relative duty cycle 100 %
Electrical connection coil several connection types available, see ordering code
Protection class solenoid coil to ISO 20 653 / EN 60 529
IP 65 / IP 67 / IP 69K, see “Ordering code” (with appropriate
mating connector and proper tting and sealing)
3/5
Type series: WSP22GNA3…
Reference: 400-P-120801-EN-01/02.2023
Performance graphs
measured with oil viscosity 33.0 mm²/s (cSt), coil at steady-state temperature and 10 % undervoltage
p = f (Q) Performance limit Δp = f (Q) Pressure drop-ow rate characteristic
400-PG-0059
Q [l/min (gpm)]
p [bar (psi)]
036912 15
0
100 (1400)
200 (2900)
300 (4300)
420 (6000)
(0.75) (1.5)
(2.25)
(3)(3.75)
400-PG-0061
0
5 (70)
10 (140
)
15 (215
)
20 (285
)
p [bar (psi)]∆
1)
2)
1) 2 → 1
2) 1 → 2
Q [l/min (gpm)]
036912
15
(0.75) (1.5)
(2.25)
(3)(3.75
)
4/5
Type series: WSP22GNA3…
Reference: 400-P-120801-EN-01/02.2023
Dimensions and sectional view
47.5
54.5
72.8
73.529.1
102.6
3.3
1
24
2
Ø36
3/4 - 16 UNF-2A
(2.85)
(2.15)
1P
IWຘOE
0
$  s
(1.87)
(4.04)
(2.89)
(1.15)
(0.13)
(Ø1.42)
Ø17.17×1.78
Ø12.42×1.78
Ø16.00×2.00
Ø10.70×1.45×1.00
Beispiel für die Masseinheit:
Example for the dimensional units:


LQFK
 PP PLOOLPHWHU
Ø16.00×2.00
0
$ 
Installation information
IMPORTANT!
1) When tting the screw-in cartridge valve,
use the specied tightening torque. The value
can be found in the chapter "Technical data".
ATTENTION!
Only qualied personnel with mechanical
skills may carry out any maintenance work.
Generally, the only work that should ever be
undertaken is to check, and possibly replace,
the seals. When changing seals, oil or grease
the new seals thoroughly before tting them.
5/5
Type series: WSP22GNA3…
Reference: 400-P-120801-EN-01/02.2023
Ordering code
Deutsch plug connection DT04-2P (with protection diode, IP 67/69K)
Deutsch plug connection DT04-2P (IP 67/69K)
Junior Timer axial plug connection (with protection diode, IP65)
Junior Timer radial plug connection (with protection diode, IP65)
Kostal plug connection (IP 65)
C
JT
IT
D
DT
=
=
=
=
=
mating plug not supplied
AMP Superseal 1.5 (IP 67) / Metri-Pack 150 (IP 65)
S
=
22G
W=
directional valve
S=
seat valve, direct acting
P=
high-pressure model, 420 bar
22
G=2-way/2-position function, de-energized closed
A ...
Q=standard model - see relevant data sheets
Y ...
R=special features - please consult BUCHER
3=
nominal size 1 (primarily for pilot controls)
(special seals - please contact BUCHER)
1 ...
9=design stage (omit when ordering)
...
=voltage e.g. 24 (24 V)
for the following plug-variants, please consult Bucher:
F=
flying leads (500 mm)
-
Ex.
_
AP N 23SW
electrically operated, V DC = 27 W / V AC = 25 W
N
=
(blank)
=
V=
FKM (fluorocarbon rubber / VITON) seals
NBR (nitril-butadien-rubber / BUNA) seals (standard)
(blank
)=DIN EN 175301-803 connection, 3-pole 2 P+E with mating plug, IP 65 (standard)
M10
0=DIN EN 175301-803 connection, 3-pole 2 P+E
_
24
D
A=
current AC
D=
current DC
Related data sheets
Reference Description
400-P-040011 Form tools
400-P-120110 Solenoid coil D36
400-P-040171 Cavity AL
400-P-720101 Threaded port body GALA
info.ch@bucherhydraulics.com www.bucherhydraulics.com
© 2023 by Bucher Hydraulics AG Frutigen, 3714 Frutigen, Switzerland
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.