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Proportional relief valves type RZME-A
direct operated, ISO 4401 size 06 subplate mounting or M20 screw-in cartridge execution
Table F140-1/E
RZME-A are open loop, poppet type direct
operated proportional pressure relief valves
with proportional solenoids certified
according to North American standard
cURus
.
They operate in association with electronic
drivers, see section
, which supply the
proportional valves with proper current to
align the valve regulation to the reference
signal.
They are available in following executions:
RZME: subplate mounting, ISO size 06
CART RZME: M20 cartridge execution
The solenoid coils are plastic encapsulated
with insulation class H and they are
available with different nominal resistances
depending to the voltage supply (12 V
DC or
24 V
DC) and to the electronic driver type,
see section
and
.
Mounting surface RZME ISO 4401 size 06
Cavity CART RZME: see section
Max flow = 4 l/min
Max pressure = 350 bar
10
F140
RZME-A
Valve body
Poppet
Proportional solenoid
Screw for air bleeding
Digital electric driver E-MI-AS-IR (to be ordered separately)
햲
햳
햴
햵
햶
Series number
Proportional pressure relief valve
RZME = subplate mounting
CART RZME = cartridge
execution
A = without integral transducer
Configuration:
010 = regulation on port P, discharge in T
1
MODEL CODE
Pressure range:
50 = 50 bar
100 = 100 bar
210 = 210 bar
315 = 315 bar
350 = 350 bar
RZME
-///--
*
** *
A 010
315
Seals material,
see section :
- =
NBR
PE = FKM
BT = HNBR
*
Coils with special connectors, see section
- = omit for standard DIN connector
J = AMP Junior Timer connector
K = Deutsch connector
S = Lead Wire connection
Coil voltage see section and :
- = standard coil for 24V
DC
Atos drivers
6 = optional coil for 12V
DC
Atos drivers
18 = optional coil for low current drivers
2
ELECTRONIC DRIVERS
Type
Drivers model
Data sheet
Format
E-MI-AC (1)
analog
E-MI-AS-IR (1)
digital
E-BM-AC
analog
E-BM-AS-PS
digital
E-ME-AC
analog
E-RP-AC
analog
Voltage supply
12 24
/6 std
12 24
/6 std
12 24
/6 std
12 24
/6 std
24
std
12 24
/6 std
Coil option
DIN 43650
plug-in to solenoid
G010 G020
DIN 43700
UNDECAL
G025
DIN-rail panel
G030
EUROCARD
G035
Sealed
and rugged box
G100
T P
CART RZME-A
P
T
(1) for CART RZME the electronic driver may interfere with the manifold surface. Please check the installation dimensions at section
10
standard
option /6
optional coil to be used with
Atos drivers with power supply
12 V
DC
option /18
optional coil to be used with elec-
tronic drivers not supplied by
Atos, with power supply 24 VDC
and max current limited to 1A
4
≤70
≤1,5
≤3
≤2
3
HYDRAULIC CHARACTERISTICS (based on mineral oil ISO VG 46 at 50 °C)
Hydraulic symbols
Valve model
Max regulated pressure (Q = 1 l/min) [bar]
Min. regulated pressure (Q = 1 l/min) [bar]
Max. pressure at port P [bar]
Max. pressure at port T [bar]
Max. flow [l/min]
Response time 0-100% step signal (1)
[ms]
(depending on installation)
Hysteresis [% of the max pressure]
Linearity [% of the max pressure]
Repeatability [% of the max pressure]
RZME-A
CART RZME-A
50
0,3
100
0,5
210
0,5
315
1
350
1,5
350
210
Above performance data refer to valves coupled with Atos electronic drivers, see section
.
Coil resistance R at 20°C 3 ÷ 3,3
Ω
2 ÷ 2,2
Ω
13 ÷ 13,4
Ω
Max. solenoid current 2,2 A 2,75 A 1 A
Max. power 30 Watt
Protection degree (CEI EN-60529)
IP65
Duty factor Continuous rating (ED=100%)
Certification cURus North American Standard
4
MAIN CHARACTERISTICS, SEALS AND HYDRAULIC FLUID - for other fluids not included in below table, consult our technical office
Coil code
Mineral oils
Hydraulic fluid
NBR, FKM, HNBR
FKM
NBR, HNBR
DIN 51524
ISO 12922
HL, HLP, HLPD, HVLP, HVLPD
HFDU, HFDR
HFC
Suitable seals type
Classification Ref. Standard
Flame resistant without water
Flame resistant with water
NBR seals (standard) = -20°C ÷ +60°C, with HFC hydraulic fluids = -20°C ÷ +50°C
Seals, recommended fluid temperature FKM seals (/PE option)= -20°C ÷ +80°C
HNBR seals (/BT option)= -40°C ÷ +60°C, with HFC hydraulic fluids = -40°C ÷ +50°C
Recommended viscosity 15÷100 mm
2
/s - max allowed range 2.8 ÷ 500 mm
2
/s
Fluid contamination class
ISO 4406 class 21/19/16 NAS 1638 class 10, achievable with in line filters - 25 μm (β10 _>75 recommended)
Assembly position / location Any position
Subplate surface finishing (RZME) Roughness index Ra 0,4 - flatness ratio 0,01/100 (ISO 1101)
Flow direction As shown in the symbols of table
Ambient temperature Standard execution = -30°C ÷ +70°C; /PE option = -20°C ÷ +70°C; /BT option = -40°C ÷ +70°C
(1) Average value response time; the pressure variation in consequence of a modification of the reference input signal to the valve is affected by the
stiffness of the hydraulic circuit: greater is the stiffness of the circuit, faster is the dynamic response.
F140
Min. regulated pressure [bar]
Min. regulated pressure [bar]
7
DIAGRAMS (based on mineral oil ISO VG 46 at 50 °C)
1 Regulation diagrams
with flow rate Q = 1 l/min
2 Pressure/flow diagrams
with reference signal set at Q = 1 l/min
3-7 Min. pressure/flow diagrams
with zero reference signal
3=pressure range: 50
4=pressure range: 100
5=pressure range: 210
6=pressure range: 315
7=pressure range: 350
1
2
4
7
5
3
Note:
The presence of counter pressure at port
T can affect the effective pressure regulation.
Flow [l/min]Flow [l/min]
Flow [l/min]
Reference signal [% of the max]
Pressure at port P [% of the max.]
Pressure at port P [bar]
6
8
COILS TYPE WITH SPECIAL CONNECTORS
Options -J
Coil type COZEJ
AMP Junior Timer connector
Protection degree IP67
Options -K
Coil type COZEK
Deutsch connector, DT-04-2P male
Protection degree IP67
Options -S
Coil type COZES
Lead Wire connection
Cable lenght = 180 mm
RZME-A proportional valves are CE marked according to the applicable Directives (e.g. Immunity/Emission EMC Directive and Low Voltage Directive).
Installation, wirings and start-up procedures must be performed according to the general prescriptions shown in table F003 and in the installation notes
supplied with relevant components.
5
GENERAL NOTES
6
SOLENOID CONNECTIONS
Signal description
SUPPLY
SUPPLY
GND
PIN
1
2
3
SOLENOID POWER SUPPLY CONNECTOR
1
2
3
Mass: 1,5 Kg
9 INSTALLATION DIMENSIONS [mm]
ISO 4401: 2005
Mounting surface: 4401-03-02-0-05 (see table P005)
(without ports A and B)
Fastening bolts:
4 socket head screws M5X50 class 12.9
Tightening torque = 8 Nm
Seals: 2 OR 108
Ports P, T: Ø = 5 mm
RZME-A
(with digital driver E-MI-AS-IR)
RZME-A
666
E-MI-AS-IR
view from X
air bleeding screw
air bleeding screw
142
Mass: 1,6 Kg
6973
50.7
11
22
4Nm
47.5
90
45
45
47.5
82
6973
50.7
142
4Nm
22
40.5
21.5
5.1
25.9
31
ø5.5
31.750.75
12/15
Mass: 0,6 Kg
58
73
ø45.3
67
73
ø45.3
83
5.3
Mass: 0,7 Kg
Cavity dimensions
for CART RZME-A
CART RZME-A CART RZME-A
(with digital driver E-MI-AS-IR)
to be checked for eventual interference
with the manifold surface
