E 5.991.1/12.10
522
Proportional Pressure
Relief Valve
SAE 10-Cartridge – 350 bar
PDB10P-01
Spool Type – Pilot Operated
up to 120 l/min
up to 350 bar
The PDB10P is a two stage spool type
proportional pressure relief valve. If
the pressure at port 1 rises above the
setting dened by the electrical control
signal, the pilot stage opens and allows
ow from the back of the main piston to
port 2. The resulting pressure imbalance
causes the main piston to open against
the return spring and allows ow from
port 1 to port 2. As a function of the
electrical signal, the relief pressure at
port 1 can be changed steplessly.
Features
Excellent stability throughout ow range
All exposed surfaces zinc-plated and corrosion-proof
Excellent dynamic performance
All valve parts made of high-strength steel with hardened and
ground components to ensure minimal wear and to extend service life
Coil seals protect the solenoid system
Wide variety of connectors available
Low pressure drop by CFD optimized ow-path
Screen protected measuring orice enhances safety
FuNctION
specIFIcatIONs
Operating pressure: max. 350 bar
Nominal ow: max. 120 l/min
Operating pressure ranges: up to 60 bar, up to 230 bar, up to 350 bar
Internal leakage: less than 0.5 l/min at 350 bar
Media operating temperature range: -30 °C to +120 °C
Ambient temperature range: -30 °C to +60 °C
Fluids:
Hydraulic oil to DIN 51524 Part 1 + 2
Viscosity: min. 7.4 to max. 420 mm
2
/s
Filtration: Class 18/16/13 up to 19/17/14 according
to ISO 4406 or cleaner
MTTF
d
: 150 years
Installation: no orientation restrictions
Material: Valve body: carbon steel
Spool: carbon steel
Seals: NBR (standard)
FKM (optional, temperature
range to -20 °C)
Coil: Steel / Polyamide
Cavity: FC10-2
Weights: Valve complete: 0.49 kg
Coil only: 0.23 kg
Electrical data:
Control current range (at 20 °C): 1050 mA, 8.8 Ω / 2100 mA, 2.2 Ω
Dither frequency: 160 Hz - 250 Hz
Response time: On: approx. 50 ms, Off: approx. 30 ms
Hysteresis with dither: 2 - 4 % of maximum control current
Repeatability: 1.5 % of maximum pressure range
Reversal error: ≤ 2 % of maximum control current
Response sensitivity: ≤ 1 % of maximum control current
Notes:
The PDB10P can also be supplied with an emergency pressure adjustment (version –01M).
This allows a mechanical pressure adjustment of the valve if the electrical signal is
interrupted. This adjustment should be used only in case of electrical failure since the
manual setting would be additive to the electrical setting and the danger of equipment
damage could develop.
In order to achieve optimal function, any trapped air should be vented with the bleed
screw on the face of the tube (not tted to version –01M).
E 5.991.1/12.10
523
perFOrmaNce
mOdel cOde
PDB10P–01 M - C - N - 330 - 24 PG - 8.8
Basic model
Option
Omission = No option
M = Emergency pressure adjustment
Body and Ports*
C = Cartridge only
SB4 = 1/2 BSP ports, steel body
AB4 = 1/2 BSP ports, aluminium body
Seals
N = NBR
V = FKM
Pressure ranges
87 = up to 60 bar
330 = up to 230 bar
500 = up to 350 bar
Coil voltage
12 = 12 V (2.2 Ω)
24 = 24 V (8.8 Ω)
Coil connector (Coil...40-1836)
PG = Connector to EN 175301-803
PL = Connector with 2 ying leads, 0.75mm
2
PN = Deutsch connector
PT = AMP Junior Timer connector, 2 pole, radial
other connectors on request
Coil resistance
2.2 = 2.2 Ω (12 V)
8.8 = 8.8 Ω (24 V)
dImeNsIONs
caVItY
FC10-2
% of max. pressure range
measured at ν = 34 mm
2
/s, T
oil
= 46 °C
Torque 4
+2
Nm
After loosening knurled nut,
coil can be rotated through
360 ° and removed.
Flow rate
pressure
% of max. control current
1" Hex
Torque 45
+10
Nm
thick
100 % Max. control current
75 % Max. control current
No control current
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
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
Form tools
Tool Part No
Rougher FC10-2 176379
Finisher FC10-2 165706
millimeter (inch)
subject to technical modications
*Standard Line Bodies
Code Part No Material Ports Pressure
FH102-SB4 3037594 Steel, zinc-plated 1/2 BSP 420 bar
FH102-AB4 3037777 Aluminium, clear anodized 1/2 BSP 245 bar
* for other connection housings, see brochure 5.252.2
Standard models
Model code Part no.
PDB10P-01-C-N-87-12PG-2.2 3122867
PDB10P-01-C-N-330-12PG-2.2 3122958
PDB10P-01-C-N-500-12PG-2.2 3122959
PDB10P-01-C-N-87-24PG-8.8 3122964
PDB10P-01-C-N-330-24PG-8.8 3122965
PDB10P-01-C-N-500-24PG-8.8 3122966
other types on request
Venting screw
torque 2.5 +0.5 Nm
(3,34 without emergency
pressure adjustment)
(3,31 without emergency
pressure adjustment)
Emergency pressure
adjustment
torque 10 +1 Nm
%
%
