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Pressure Relief Valve
Spool Type, Pilot-Operated
SAE-8 Cartridge – 350 bar
DB08P
60 l/min
350 bar
The DB08P is a pilot-operated, spool
type pressure relief valve. If the pressure
at port 1 exceeds the pressure setting,
the pilot poppet opens, creating a small
ow over the orice of the pilot stage to
the tank. The pressure drop across the
orice lifts the main spool against a light
spring, opening the connection between
port 1 and port 2.
FEATURES
z External surfaces zinc-plated and corrosion-proof
z Hardened and ground internal valve components to ensure minimal wear and
extended service life
z Excellent stability throughout the entire ow range
z Low pressure drop due to CFD optimized ow path
z Screen protected metering orice enhances safety
z Optional spring ranges up to 345 bar
z Adjustable throughout ow range
z Quick response
z Compact design
FUNCTION
SPECIFICATIONS
Operating pressure: max. 350 bar
Nominal ow: max. 60 l/min
Setting pressure ranges: up to 35 bar
up to 60 bar
up to 125 bar
up to 230 bar
up to 345 bar
Internal leakage: less than 0.5 l/min at 350 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
Installation: No orientation restrictions
Materials: Valve body: free-cutting steel
Spool: hardened and
ground steel
Seals: NBR (standard)
FKM (optional, media
temperature range
-20 °C to 120 °C)
Cavity: FC08-2
Weight: 0.14 kg
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MODEL CODE
DB08P-01 – C – N – 180 V 100
Basic model
Pressure relief valve, UNF
Body and ports*
C = Cartridge only
SB3 = G3/8 ports, steel body
AB3 = G3/8 ports, aluminium body
Seals
N = NBR
V = FKM
Setting pressure range
050 = to 35 bar
090 = to 62 bar
180 = to 124 bar
330 = to 228 bar
500 = to 345 bar
Other pressure ranges on request
Type of adjustment
V = Allen head (hex. 5/32")
H = Knob adjustment
F = Factory preset, non adjustable
K = Allen head (hex. 5/32") with protective cap
Opening pressure setting
No details = no setting, spring relaxed
Pressure value = customer-specic opening pressure on
request
CAVITY
FC08-2
DIMENSIONS
Form tools
Tool Part No.
Countersink FC08-2 175473
Reamer FC08-2 175474
millimeter (inch)
subject to technical modications
millimeter (inch)
subject to technical modications
PERFORMANCE
Relieving pressure [bar]
Flow rate
Measured at ν = 34 mm²/s, T
oil
= 46 °C
thick
hex. SW7/8"
torque
25 – 30 Nm
SW 13
hex. 1/2"
SW 4
hex. 5/32"
Standard models
Model code Part No.
DB08P-01-C-N-090V 3141198
DB08P-01-C-N-330V 3141200
DB08P-01-C-N-500V 3141201
*Standard in-line bodies
Code Part No. Material Ports Pressure
FH082-SB3 560919 Steel, zinc-plated G3/8 420 bar
FH082-AB3 3011423 Aluminium, anodized G3/8 210 bar
Seal kits
Code Material Part No.
FH082-N NBR 3033920
FH082-V FKM 3051756
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
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
modications.
