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Pressure Reducing Valve
Spool Type, Direct-Acting
SAE-10 Cartridge – 420 bar
DR10-01
60 l/min
420 bar
The DR10 is a direct-acting, spring-
loaded, spool type pressure reducing
valve. Its function is to maintain a
constant pressure at the consumer.
In the normal position, the pressure port
2 is connected to the consumer port 1.
The pressure building at the consumer
acts on the face of the control spool
and moves it upwards against the set
spring force. Therefore the ow at port
2 is restricted enough to satisfy the
consumer's demand without increasing
the pressure.
In addition the valve has a pressure
relieving function: If the pressure across
consumer port 1 rises above the control
pressure due to external force, the
control spool is pushed further against
the spring and vents the consumer to
tank port 3.
Any pressure at port 3 is additive to the
spring setting.
FEATURES
z External surfaces zinc-plated and corrosion-proof
z Excellent stability throughout the entire ow range
z Hardened and ground valve components to ensure minimal wear and extended
service life
z Low pressure drop due to CFD optimized ow path
z Max. stroke limiter
z Hydrodynamic damping
z Quick response
z Optional spring ranges up to 131 bar
FUNCTION
SPECIFICATIONS
Operating pressure: max. 420 bar
Nominal ow: max. 60 l/min
Operating pressure ranges: Up to 20 bar
Up to 48 bar
Up to 96 bar
Up to 131 bar
Media operating temperature range: min. -30 °C to max. +100 °C
Ambient temperature range: min. -30 °C to max. +100 °C
Operating uid: Hydraulic oil to DIN 51524 Part 1 and 2
Viscosity range: min. 7.4 mm²/s to max. 420 mm²/s
Filtration: Class 21/19/16 to ISO 4406
or cleaner
MTTF
d
: 150 years (see "Conditions and
instructions for valves" in brochure 5.300)
Installation: No orientation restrictions
Material Valve body: free-cutting steel
Spool: hardened and ground
steel
Seals: NBR (standard)
FKM (optional, media
temperature range
-20 °C to +120 °C)
Support rings PTFE
Cavity: FC10-3
Weight: 0.26 kg
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PERFORMANCE
MODEL CODE
DR10-01 – C – N – 070 V 050
Basic model
Pressure reducing valve UNF
Body and ports*
C = cartridge only
SB4 = G1/2 ports, steel body
AB4 = G1/2 ports, aluminium body
Seals
N = NBR
V = FKM
Pressure setting range
030 = up to 20 bar
070 = up to 48 bar
140 = up to 96 bar
190 = up to 131 bar
Type of adjustment
V = Allen head (hex. 5/32")
H = Handwheel
F = Factory preset, non adjustable
Pressure setting
No details = no setting, spring relaxed
Pressure value = setting specied by customer
CAVITY
FC10-3
DIMENSIONS
Pressure rise
Relieving
Measured at ν = 34 mm²/s, T
oil
= 46 °C
millimeter (inch)
subject to technical modications
Form tools
Tool Part No.
Countersink FC10-3 176282
Finisher FC10-3 176283
Standard models
Model code Part No.
DR10-01-C-N-030V 3140403
DR10-01-C-N-070V 3026815
DR10-01-C-N-140V 3026816
DR10-01-C-N-190V 3026817
*Standard in-line bodies
Code Part No. Material Ports Pressure
FH103-SB4 3037697 Steel, zinc-plated G1/2 420 bar
FH103-AB4 3038092 Aluminium, anodized G1/2 210 bar
Seal kits
Code Material Part No.
FS103-N Seal Kit NBR 3071274
FS103-V SEAL KIT FKM 3049443
Reducing
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: utec@hydac.com
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 modications.
NOTE
millimeter (inch)
subject to technical modications
hex. SW 1"
torque 40 - 50 Nm
thick
SW 5/32"
SW 9/16"
