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Pressure Relief Valve
Poppet Type, Direct Acting
Cartridge – 360 bar
DB4E-CE + TÜV Type Approved
Up to 28 l/min
Up to 360 bar
The pressure relief valve DB4E-CE is a
direct-acting, spring-loaded poppet valve with
CE mark and TÜV approval.
Its function is to relieve pressure in the
system. The spring exerts a force on the
poppet holding it on the valve seat against
the system pressure exerted on port 1. If the
hydraulic pressure is below the pre-set spring
tension, the valve is closed. When the hy-
draulic force exceeds the pre-set spring tensi-
on, the valve opens and allows ow to tank
via port 2. This continues until the system
pressure is equal to the spring tension and
the valve closes again. To ensure that stable
operation is maintained, the closing cone
is securely located in the damping piston,
opposing the direction of movement, and this
has a stabilizing effect.
Caution: The valve DB4E-CE is classied
as a safety valve according to PED. Always
follow the operating instructions supplied with
the valve!
The key points are stated below:
– Tank pressure (port 2) must be
p
2
max
= 0 bar!
– If the connections are incorrect, the safety
function of the valve is disabled!
– The pressure setting must not be altered!
– The valve must not be tampered with!
CE valve according to Pressure Equipment Directive (PED) 97/23/EC
Excellent stability throughout the entire ow range
Low hysteresis and accurate pressure control
All exposed surfaces zinc-plated and corrosion-proof
All valve parts made of high-strength steel with hardened and ground
components to ensure minimal wear and extended service life
Low pressure drop due to CFD optimized ow-path
Various pressure ranges up to 360 bar
TÜV type approved
Operating pressure: max. 360 bar
max. 0 bar at port 2 (tank)
Flow rate: 28 l/min
Control accuracy +/- 10%
Operating pressure ranges: 2 to 150 bar
30 to 250 bar
39 to 360 bar
Leakage: Leakage-free (<5 drops/min at 350 bar)
Media operating temperature range: min. -20 °C to max. +100 °C
Ambient temperature range: min. -20 °C to max. +80 °C
Fluid: Hydraulic oil to DIN 51524 Part 1 + 2
Viscosity: min. 7.4 mm²/s to max. 420 mm²/s
Filtration: Class 21/19/16 to ISO 4406
or cleaner
Installation: No orientation restrictions
Material: Valve body: high-tensile steel
Piston: hardened and
ground steel
Seals: FKM (standard)
NBR (option)
Back-up rings: PTFE
Cavity: 06020
Weight: 0.14 kg
Adjustment
device
Valve body
Spring
Spring-plate
with hydrodyn.
lift support
Poppet
with damping
piston
Valve seat
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lowest setting pressure
lowest setting pressure
lowest setting pressure
DB4E – 013 – CE1637.ENISO4126.4L. 11. 280
Basic model
Pressure relief valve
with CE mark
Series
(determined by manufacturer)
Type approval code
CE to ENISO 4126.4L
Max. permitted ow rate
11 = 11 l/min
Rate depends on the pressure range
(see performance curves)
Opening pressure setting
280 = 280 bar, opening pressure in bar, factory-set
(See Application Range chart)
Standard models
Model code Part No.
DB4E-013-CE1637.ENISO4126.4L.13.100 3108508
DB4E-013-CE1637.ENISO4126.4L.15.140 3108511
DB4E-013-CE1637.ENISO4126.4L.18.160 3108513
DB4E-013-CE1637.ENISO4126.4L.24.200 3108517
DB4E-013-CE1637.ENISO4126.4L.20.250 3108519
DB4E-013-CE1637.ENISO4126.4L.16.350 3108568
Standard line bodies
Code Part No. Material Ports Pressure
R06020-01X-01 275266 Steel, zinc-plated G 3/8 420 bar
Seal kits
Code Part No.
SEAL KIT 06020-FPM 3262477
SEAL KIT 06020-NBR 3119017
Q in l/min
Inlet pressure p [bar]
Q in l/min
Inlet pressure p [bar]
Q in l/min
Inlet pressure p [bar]
Other line bodies on request
Each valve is supplied with an Operating Manual in accordance with
Pressure Equipment Directive
Operating limit
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Millimeter
Subject to technical modications.
06020
SW 21
torque 25
+5
NM
Millimeter
Subject to technical modications.
Cartridge form tools
Tool Part No.
Countersink 170033
Reamer 1000768
Tap 1002648
Plug gauge 168840
ow rate in l/min
Operating pressure p [bar]
permitted
range
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
NOTE
The information in this brochure relates to the
operating conditions and applications descri-
bed. For applications or operating conditions
not described, please contact the relevant
technical department.
Subject to technical modications.
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