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— The DZCE*G are pressure reducing valves with electric
proportional control with integrated electronics, with
mounting interface in compliance with ISO 4401
standards.
— Those valves, besides reducing the pressure from line P
to working line A, allow the flow to return from the line A
to the return line T when a pressure greater than the set
value is generated in the downstream circuit (flow path
A): a typical case of hydraulic counterweight or load
balancing.
— The valves are available with command signal in voltage
or current and on board electronics with internal enable,
external enable or 0V monitor on pin C.
— A solenoid current monitoring signal is available.
— The valves are easy to install. The driver directly
manages digital settings. In the event of special
applications, you can customize the settings using the
optional kit (see par. 15.3)
HYDRAULIC SYMBOL
OPERATING PRINCIPLE
81 610/115 ED
DZCE5G CETOP P05
DZCE5RG ISO 4401-05 (CETOP R05)
DZCE7G ISO 4401-07 (CETOP 07)
DZCE8G ISO 4401-08 (CETOP 08)
p max
350 bar
Q max (see performance table)
DZCE5G
DZCE5RG
DZCE7G DZCE8G
Max operating pressure bar 350
Maximum flow l/min 150 300 500
Step response see paragraph 7
Hysteresis % of p
max
< 2%
Repeatability % of p
max
< ± 2%
Electrical characteristics see paragraph 3
Ambient temperature range °C -20 / +60
Fluid temperature range °C -20 / +80
Fluid viscosity range cSt 10 ÷ 400
Fluid contamination degree According to ISO 4406:1999 class 18/16/13
Recommended viscosity cSt 25
Mass kg 7,3 9,5 15,6
PERFORMANCES
(obtained with mineral oil with viscosity of 36 cSt at 50°C p = 140 bar)
DZCE*G
PRESSURE REDUCING VALVES
WITH PROPORTIONAL CONTROL
AND INTEGRAL ELECTRONICS
SERIES 30
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DZCE*G
SERIES 30
1 - IDENTIFICATION CODE
Seals:
N = NBR seals for mineral oil (standard)
V = FPM seals for special fluids
Series No.
(the overall and mounting dimensions remain unchanged
from 30 to 39)
Nominal size:
5 = CETOP P05
5R = ISO 4401-05 (CETOP R05)
7 = ISO 4401-07 (CETOP 07)
8 = ISO 4401-08 (CETOP 08)
Piloting: I = internal
E = external
Drainage: I = internal
E = external
Pressure control range:
070 = 1 ÷ 70 bar
140 = 1 ÷ 140 bar
210 = 1 ÷ 210 bar
300 = 1 ÷ 300 bar
Pressure
reducing valve
Electric
proportional control
D Z C E - / 30 -
K11/
Integrated electronics
for open loop
G
Main connector
6 pin + PE
Reference signal:
E0 = voltage 0 ÷ 10 V
E1 = current 4 ÷ 20 mA
Pin C function:
A = external enable
B = internal enable
C = 0V monitor
2 - DETAILED SYMBOL
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DZCE*G
SERIES 30
3 - ELECTRICAL CHARACTERISTICS
3.1 - Electrical on board electronics
Duty cycle 100% (continuous operation)
Protection class according to EN 60529 IP65 / IP67
Supply voltage
V DC
24 (from 19 to 30 VDC), ripple max 3 Vpp
Power consumption
VA
25
Maximum solenoid current
A
1.88
Fuse protection, external 2A time lag
Command signals: voltage (E0)
current (E1)
V DC
m
A
0 ÷ 10 (Impedance Ri > 11 kOhm)
4 ÷ 20 (Impedance Ri = 58 Ohm)
Monitor signal (current to solenoid):
voltage (E0)
current (E1)
V
DC
mA
0 ÷ 10 (Impedance Ro > 1 kOhm)
4 ÷ 20 (Impedance Ro = 500 Ohm)
Managed breakdowns
Overload and electronics overheating, cable breakdown,
supply voltage failures
Communication LIN-bus Interface (with the optional kit)
Connection 7 - pin MIL-C-5015-G (DIN-EN 175201-804)
Electromagnetic compatibility (EMC)
emissions EN 61000-6-4
immunity EN 61000-6-2
According to 2004/108/EC standards
3.2 - On-board electronics diagrams
VERSION C - 0V Monitor
VERSION A - External Enable VERSION B - Internal Enable
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DZCE*G
SERIES 30
4 - VERSIONS WITH VOLTAGE COMMAND (E0)
The reference signal is between 0…10V. The monitor feature of versions B and C becomes available with a delay of 0,5 sec from the power-on
of the card.
Pin Values version A version B version C
A
24 V DC
Supply Voltage
B
0 V
C
Enable not used PIN F reference
24 V DC - 0 V
D
0 ÷ 10 V Command (differential input)
E
0 V PIN D reference
F
0 ÷ 10 V Monitor (0V reference: pin B) Monitor
PE
GND Ground (Earth)
Pin Values version A version B version C
A
24 V DC
Supply Voltage
B
0 V
C
Enable not used PIN F reference
24 V DC - 0 V
D
4 ÷ 20 mA Command
E
0 V PIN D reference
F
4 ÷ 20 mA Monitor (0V reference: pin B) Monitor
PE
GND Ground (Earth)
5 - VERSIONS WITH CURRENT COMMAND (E1)
The reference signal is supplied in current 4 ÷ 20 mA. If the current for command is lower the card shows a breakdown cable error. To reset the
error is sufficient to restore the signal.
The monitor feature of versions B and C becomes available with a delay of 0,5 sec from the power-on of the card.
COMMAND 0V +10V
MONITOR 0V +10V
COMMAND 4 mA 20 mA
MONITOR 4 mA 20 mA
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DZCE*G
SERIES 30
6.3 - Characteristic Curves of DZCE8G
ADJUSTMENT
0
100
25
p[bar]
Q[lt/min]
20
15
10
5
100200
AT PA
400 300500
30
35
MIN. CONTROLLED PRESSURE p min = f(Q)
6 - CHARACTERISTIC CURVES
(with mineral oil with viscosity of 36 cSt at 50°C)
6.1 - Characteristic Curves of DZCE5G and DZCE5RG
6.2 - Characteristic Curves of DZCE7G
ADJUSTMENT
0
25
25
p[bar]
Q[lt/min]
20
15
1
0
5
257550100
AT PA
125150
MIN. CONTROLLED PRESSURE p min = f(Q)
ADJUSTMENT
0
50
25
p[bar]
Q[lt/min]
20
15
10
5
50150 100200
AT PA
250300
3
0
MIN. CONTROLLED PRESSURE p min = f(Q)
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DZCE*G
SERIES 30
00
5050
250250
100100
150150
200200
t[ms]t[ms]
2020 4040 6060 8080 00 40402020
pp
[bar][bar]
100100 6060
00
5050
250250
100100
150150
200200
t[ms]t[ms]
2020 4040 6060 8080 00 40402020
pp
[bar][bar]
100100
DZCE5G and DZCE5RG DZCE7G and DZCE8G
6.4 - CONTROLLED PRESSURE p = f(I)
7 - STEP RESPONSE
(obtained with mineral oil with viscosity of 36 cSt at 50°C)
The graphs show the typical step response tested with static pressure 100 bar.
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DZCE*G
SERIES 30
8 - PILOTING AND DRAINAGE
DZCE7G
T
DZCE8G
The valves are available with piloting and drainage, both internal and external. The version with external drainage allows a higher
backpressure on the unloading.
X: M6x8 plug for
external pilot
Y: M6x8 plug for
external drain
X: M5x6 plug for
external pilot
Y: M5x6 plug for
external drain
X: M6x8 plug for
external pilot
Y: M6x8 plug for
external drain
P
DZCE5 and DZCE5RG
TYPE OF VALVE
Plug assembly
X Y
IE
INTERNAL PILOT AND
EXTERNAL DRAIN
NO YES
II
INTERNAL PILOT AND
INTERNAL DRAIN
NO NO
EE
EXTERNAL PILOT AND
EXTERNAL DRAIN
YES YES
EI
EXTERNAL PILOT AND
INTERNAL DRAIN
YES NO
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DZCE*G
SERIES 30
9 - OVERALL AND MOUNTING DIMENSIONS DZCE5G AND DZCE5RG
dimensions in mm
1
Mounting surface with sealing rings:
N. 5 OR type 2050 (12.42x1.78) - 90 Shore
N. 2 OR type 2037 (9.25x1.78) - 90 Shore
2
Breather (Allen key 4)
3
Main connection
4
Adjustment seal, set in factory. It is
recommended not to unscrew the nut.
5
Pressure gauge port 1/4 BSP”
6
Mating electrical connector
to be ordered separately.
See at section 15
Valve fastening: N. 4 bolts SHC M6x35 - ISO 4762
Tightening torque: 8 Nm (bolts A 8.8)
Thread of mounting holes: M6x10
NOTE: at the first start up, or after a long period of no use, it
is necessary to vent the air through the breather (2) placed
at the end of the solenoid tube.
Mounting surface shown at paragraph 12.
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DZCE*G
SERIES 30
10 - OVERALL AND MOUNTING DIMENSIONS DZCE7G
dimensions in mm
Valve fastening: N. 4 bolts SHC M10x60 - ISO 4762
N. 2 bolts SHC M6x60 - ISO 4762
Tightening torque: M10x60: 40 Nm (bolts A 8.8)
M6x60: 8 Nm (bolts A 8.8)
Thread of mounting holes: M6x18; M10x18
NOTE: at the first start up, or after a long period of no use, it is
necessary to vent the air through the breather (2) placed at the end
of the solenoid tube.
Mounting surface shown at paragraph 12.
1
Mounting surface with sealing rings:
N. 4 OR type 130 (22.22x2.62) - 90 Shore
N. 2 OR type 2043 (10.82x1.78) - 90 Shore
2
Breather (Allen key 4)
3
Main connection
4
Adjustment seal, set in factory. It is
recommended not to unscrew the nut.
5
Pressure gauge port 1/4 BSP”
6
Mating electrical connector
to be ordered separately.
See at section 15
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DZCE*G
SERIES 30
11 - OVERALL AND MOUNTING DIMENSIONS DZCE8G
dimensions in mm
Valve fastening: N. 6 bolts SHC M12x60 - ISO 4762
Tightening torque: 69 Nm (bolts A 8.8)
Thread of mounting holes: M12x20
NOTE: at the first start up, or after a long period of no use, it
is necessary to vent the air through the breather (2) placed
at the end of the solenoid tube.
Mounting surface shown at paragraph 12.
1
Mounting surface with sealing rings:
N. 4 OR type 3118 (29.82x2.62) - 90 Shore
N: 2 OR type 3081 (20.24x2.62) - 90 Shore
2
Breather (Allen key 4)
3
Main connection
4
Adjustment seal, set in factory. It is
recommended not to unscrew the nut.
5
Pressure gauge port 1/4 BSP”
6
Mating electrical connector
to be ordered separately.
See at section 15
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DZCE*G
SERIES 30
DZCE5G
CETOP 4.2-4 P05-350
DZCE7G
I
SO 4401-07-07-0-05
(CETOP 4.2-4-07-350)
DZCE8G
ISO 4401-08-08-0-05
(CETOP 4.2-4-08-350)
12 - MOUNTING SURFACES
optional
“T” port
optional
“
T” port
DZCE5RG
ISO 4401-05-05-0-05
(CETOP 4.2-4 R05-350)
13 - HYDRAULIC FLUIDS
Use mineral oil-based hydraulic fluids HL or HM type, according to ISO 6743-4. For these fluids, use NBR seals. For fluids HFDR type
(phosphate esters) use FPM seals (code V). For the use of other kinds of fluid such as HFA, HFB, HFC, please consult our technical
department.
Using fluids at temperatures higher than 80 °C causes a faster degradation of the fluid and of the seals characteristics. The fluid must be
preserved in its physical and chemical characteristics.
14 - INSTALLATION
We recommend to install the valves either in horizontal position, or vertical position with the solenoid downward. If the valve is installed in
vertical position and with the solenoid upward, you must consider possible variations of the minimum controlled pressure, if compared to what
is indicated in paragraph 5.
Ensure that there is no air in the hydraulic circuit. In particular applications, can be necessary to vent the air entrapped in the solenoid tube, by
using the appropriate drain screw in the solenoid tube.
Ensure the solenoid tube is always filled with oil. At the end of the operation, make sure of having correctly replaced the drain screw.
Connect the valve T port directly to the tank. Add any backpressure value detected in the T line to the controlled pressure value.
Maximum admissible backpressure in the T line, under
operational conditions, is 2 bar.
Valves are fixed by means of screws or tie rods on a flat surface
with planarity and roughness equal to or better than those indicated
in the relative symbols. If minimum values are not observed, fluid
can easily leak between the valve and support surface.
Surface finishing
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DUPLOMATIC OLEODINAMICA S.p.A.
20015 PARABIAGO (MI) Via M. Re Depaolini 24
Tel. +39 0331.895.111
Fax +39 0331.895.339
www.duplomatic.com e-mail: sales.exp@duplomatic.com
DZCE*G
SERIES 30
REPRODUCTION IS FORBIDDEN. THE COMPANY RESERVES THE RIGHT TO APPLY ANY MODIFICATIONS.
DZCE5G DZCE7G DZCE8G
Type with rear ports PME4-AI5G PME07-AI6G
-
Type with side ports PME4-AL5G PME07-AL6G PME5-AL8G
Thread of ports: P - T - A - B
X - Y
3/4” BSP
1/4” BSP
1” BSP
1/4” BSP
1½” BSP
1/4” BSP
15 - ACCESSORIES
(to be ordered separately)
15.1 Mating connector
These valves have a plug for 7-pin mating connector, that is placed on the box of the
integral motion control.
So as to avoid electromagnetic troubles and comply with the electromagnetic
compatibility regulation EMC, it is recommended the use of a metal
connector.
If a plastic connector is used, make sure that the protection characteristics IP and
EMC of the valve are guaranteed.
Duplomatic offers a metal cable connector type MIL-C-5015-G (EN 175201-804).
name: EX7S/L/10 code 3890000003
15.2 - Connection cables size
Power supply:
- up to 20 m cable length : 1,0 mm
2
- up to 40 m cable length : 1,5 mm
2
Signal: 0,50 mm
2
A suitable cable would have 7 isolated conductors, a separate screen for the signal wires and an overall screen.
15.3 - Kit for start-up LINPC-USB
Device for service start-up and diagnostic, see catalogue 89850.
16 - SUBPLATES
(see catalogue 51 000)
