EN 5.941.1.1/09.20
1
2/2-Solenoid directional valve
Poppet type, pilot operated
Normally closed (reverse ow)
With electronic switch position
monitoring UNF Cartridge - 350 bar
WS16ZR-01E
up to 140 l/min
up to 350 bar
The directional valve is a pilot operated
poppet valve with electronic switch
position monitoring.
If the solenoid coil is de-energised the
valve is blocked from port 2 to port 1 –
this switch position is recorded
inductively. In the reverse direction there
is free ow through the valve. The valve
piston opens at a dierential pressure of
approx. 1.6 bar (check function).
When energised the valve allows ow in
both directions. The valve piston opens
at a pressure dierence of approx. 1.5
bar from 2 to 1 and at approx. 1.2 bar
from 1 to 2.
Please mind: In pilot operated solenoid
valves, shift performance and response
times depend i.a. very much on pressure
drop and volume ow during actuation.
This applies particularly to valves with
piston seals and/or position sensors.
FEATURES
z With electronic switch position monitoring
z Excellent switching performance by high power HYDAC solenoid
z Coil seals protect the solenoid system
z Wide variety of connectors available
z Exposed surfaces zinc-nickel plated for increased corrosion protection (1000 hr salt spray test)
FUNCTION
SPECIFICATIONS*
Operating pressure: max. 350 bar
Nominal ow: max. 140 l/min at 280 bar
max. 100 l/min at 350 bar
Leakage: max. 5 drops/min (0.25 cm³/min)
at p
2
= 350 bar and p
1
= 0 bar, ν = 33 mm
2
/s
Media operating temperature range: min. -20 °C to max. +100 °C
Ambient temperature range: min. -20 °C to max. + 60 °C
Operating uid: Hydraulic oil to DIN 51524 Part 1, 2 and 3
Viscosity range: min. 10 mm²/s to max. 420 mm²/s
Filtration of operating uid:
(acc. to ISO 4406)
p ≤ 210 bar: min. class 20/18/15
p ≥ 210 bar: min. class 18/16/13
MTTF
d
: 150–1200 years, according to DIN EN ISO 13849 - 1
Installation position: No orientation restrictions
Materials: Valve body: steel
Poppet: hardened and ground steel
Seals: NBR (standard)
FKM (optional, media operating
temperature range -20 °C to +120 °C)
Back-up rings: PTFE
Coil: Steel / polyamide
Cavity: FC16-2
Weight: 0.79 kg
Electrial data
Type of voltage: DC: direct current solenoid
AC: alternating current solenoid with rectier integrated
into the coil
Current draw at 20 °C: 1.5 A at 12 V DC
0.8 A at 24 V DC
Voltage tolerance: ± 15% of rated voltage
Coil duty rating: Continuous up to max. 115% of rated voltage at max. 60° C
ambient temperature
Response time:
(at p
max
, Q
max
, ν = 33 mm
2
/s)
Energised: approx. 50 ms; de-energised: approx. 70 ms
substantially extended response times
possible at other operating conditions
Coil type: Coil…-40-1836
Sensor data
Supply voltage: 24 V: 20 to 32 V DC
12 V: 10.5 to 16 V DC
Reverse polarity protection of supply: Yes
Outputs: 2 with change-over function, PNP, positive switching
Output load: ≤ 400 mA, 100% continuous
Short circuit protection: Resistant to short circuits
Connector: Round connector M12x1 (4-pole)
Protection class: IP65 to DIN40050
CE conformity: 93/68/EEC 2014/30/EU
EMC: DIN EN 61000-6-1-2-3-4
Humidity requirements: 0–95% rel. (as per DIN 40040)
Sensor connections:
* see “Conditions and Instructions for Valves” in brochure 53.000
EN 5.941.1.1/09.20
2
MODEL CODE
WS16ZR – 01E – C – N – 24 DG – 12
Basic model
Directional poppet valve, UNF
Type
01E = with electronic
switch position monitoring
Body and ports*
C = cartridge only
Seals
N = NBR (standard)
V = FKM
Coil voltage
DC voltages
12 = 12 V DC
24 = 24 V DC
AC voltage (bridge rectier built into the coil)
115 = 115 V AC
230 = 230 V AC
Other voltages on request
Coil connectors (type 40-1836)
DC: DG = DIN connector type A to EN 175301-803
DK = KOSTAL threaded connection M27x1
DL = 2 jacketed cables, 457 mm long, 0.75 mm²
DN = Deutsch connector DT04-2P, 2-pole, axial
DT = AMP Junior Timer, 2-pole, radial
AC: AG = DIN connector type A to EN 175301-803
Other connectors on request
Supply voltage of sensor
No details = 24 V DC
12 = 12 V DC
DIMENSIONS
millimetre (inch)
subject to technical modications
CAVITY
FC16-2
Form tools
Designation Part no.
Countersink 176218
Reamer 176219
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
l/min
0
1
2
3
4
5
6
7
8
9
10
11
bar
0
20
40
60
80
100
120
140
psi
2 => 1
1 => 2
1 => 2
0 4 8 12 16 20 24 28 32 36
US gpm
TYPICAL PERFORMANCE
Pressure drop
Flow rate
Measured at ν = 33 mm²/s, T
oil
= 46 °C
energised
energised
deenergised
Standard models
Model code Part no.
WS16ZR-01E-C-N-12DG 3980769
WS16ZR-01E-C-N-24DG 3567553
Other models on request
Inline connection housing
Code Part no. Material Ports Pressure
FH162-SB8 3032496 Steel, zinc-plated G1" 350 bar
FH162-AB8 3037193
Aluminium, anodised
G1" 210 bar
Other housings on request
Seal kits
Code Material Part no.
FS UNF 16/N NBR 3651395
FS UNF 16/V FKM 3651396
thick
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 or operating
conditions not described, please contact the
relevant technical department.
Subject to technical modications.
millimetre (inch)
subject to technical modications
*Torque:
Steel housing
(burst strength > 360 N/mm²): 180 Nm
Aluminium housing
(burst strength > 330 N/mm²): 160 Nm
(With torque tool in acc. with
DIN EN ISO 6789, tool type II class A or B)
For further information see brochure
No.53.000 "Conditions and instructions
for valves"
Sensor
connector
After loosening the mounting
nut, the solenoid coil can be
rotated through 360° and
removed.
Wrench size 24,
torque 4
+2
Nm
Hex. wrench size 1 1/2"
Torque *
CAUTION!
If the solenoid coil is
replaced, the switch
position sensor will require
re-adjustment by the
manufacturer.
VE = Visual Examination
* Allowed drilling zone (for manifold design)
** Sharp edges should be avoided by rounding to a
radius of 0.1 mm to 0.2 mm
*** largest pre-drilling diameter (nominal too diameter)
t depth