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2/2 Directional
Poppet Valve
Manually Operated,
Normally Closed
SAE 8-Cartridge Valve – 250 bar
WS08WM-01
up to 20 l/min
up to 250 bar
The directional valve WS08WM-01 is
a manually operated 2/2 way poppet
valve, normally closed.
The valve is operated manually and,
as long as the mechanical plunger is
pressed, allows ow between port 1 and
2 in both directions.
GENERAL
For use in systems to be controlled manually
UNF cavity
All surfaces zinc-plated and corrosion-proof
All valve parts made of high strength steel with hardened and ground
components to ensure minimal wear and to extend service life
Rigid design using one-piece body minimizes the effect of eccentricities in cavity
and maximizes reliability
Low pressure drop due to CFD optimized ow path
FUNCTION
SPECIFICATIONS
Operating pressure: max. 250 bar
Flow rate: max. 20 l/min
Operating force: thumb pressure (approx. 40-70 N)
Internal leakage: leakage-free
Temperature range of operating uid: min. -20 °C to max. +120 °C
Ambient temperature range: min. -20 °C to max. +80 °C
Operating uid: hydraulic oil to DIN 51524 Part 1 and 2
Viscosity range: 7.4 mm²/s to 420 mm²/s is recommended
Filtration: permissible contamination level
of the operating uid to ISO 4406
Class 21/19/16 or cleaner
Mounting position: optional
Materials: valve body: high strength steel
spool: hardened and
ground steel
seals: NBR (standard)
FKM (optional)
back-up rings: PTFE
Cavity: FC08-2
Weight: 0.09 kg
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PERFORMANCE
MODEL CODE
WS08WM - 01 - C - N
Designation
Directional poppet valve, manually operated
Normally closed, NW 08
Type
01 = standard
(other models on request)
Type of connection
C = cartridge only
SB3 = 3/8 BSP connection, steel housing
AB3 = 3/8 BSP connection, aluminium housing
Seals
N = NBR (standard)
V = FKM (optional)
DIMENSIONS
Pressure drop
Flow rate
Inline connection housings
Code Stock no. Material Ports
FH082-AB3 3011423 Aluminium, anodized 3/8" BSP
FH082-SB3 560919 Steel, zinc-plated 3/8" BSP
CAVITY
UNF FC08-2
Form tools
Tool Stock no.
Countersink FC08-2 175473
Reamer FC08-2 175474
Standard models
Model code Stock no.
WS08WM-01-C-N 3054918
HYDAC Fluidtechnik GmbH
Justus-von-Liebig-Str.
D-66280 Sulzbach/Saar
Tel: 0 68 97 /509-01
Telefax. 0 68 97 /509-598
E-Mail: utec@hydac.com
Millimeter (inch)
Subject to technical modications
Manual operation by
pressing rubber cap
hex SW 7/8"
Torque 25-30 Nm
thick
Measured at ν = 34 mm²/s
T
oil
= 46 °C
Millimeter (inch)
Subject to technical modications
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.