Operating_Instructions_RPE3-062x/xS3_14087_1en_05/2022
Page 6
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Valve body - grey cast iron
Spool- hardened steel
Pressure centering springs - patented steel wire for spring production
Control ring and pin - stainless steel with 10% nickel alloy
Control system stopper - brass
Control system extension, pipe and armature, coil casing, sensor body and flange - steel
Coil carcass, coil jacket plug, coil connector foot - polyamide (PA)
Coil winding - enamelled copper wire
Type plate - anodised aluminium sheet
Coil fixing nut - polyamide (PA)
Valve seal - NBR, FPM
The materials used are not included in the lists of prohibited and mandatory documented substances of Directive 2011/65/EU (RoHS) and EU
Regulation 1907/2006 (REACH).
3.1 Materials used:
In the standard version the valve body is phosphated, the outer surface of the steel parts is galvanized with corrosion protection
240 h in NSS according to ISO 9227.
In the version with reinforced corrosion protection, the body and the outer surface of the steel parts are galvanized with corrosion protection
520 h in NSS according to ISO 9227.
The surface protection layer does not contain hexavalent chromium Cr+6.
3.2 Surface protection against corrosion:
3.3 Basic technical parameters
Parameter
Unit
Value
Maximum pressure in P, A, B channels
bar
350
Maximum pressure in T channel
bar
210
Maximum flow volume through the valve
l/min
80
Working fluid temperature range for NBR seal material
°C
-30 to +80
Working fluid temperature range for FPM seal material
°C
- 20 to +80
Ambient temperature range
°C
-30 to +50
Working fluid kinematic viscosity range
mm
2
s
-1
10 to 400
Required minimum working fluid purity
třída
21/18/15 ISO 4406
Solenoid coil supply voltage tolerance
% z U
N
±10
Maximum switching density
Number/h
15 000
Lifetime
cycles
10
7
Approximate switching time at a kinematic viscosity of 32 mm2s-1
ms
AC: 30-40 / DC 30-50
Approximate return time at a kinematic viscosity of 32 mm2s-1
ms
AC: 30-70 / DC 10-50
Weight
kg
1.9
The valve is designed for common hydraulic working fluids:
› mineral oils of performance classes HM and HV according to ISO 6734-4
› non-flammable and difficult to ignite hydraulic fluids according to ISO 12922
› environmentally acceptable hydraulic fluids according to ISO 15380
NOTICE: In case of uncertainty, we recommend performing a test of the mutual tolerance of the seal material and the working fluid.
3.4 Working fluid
3.5 Valve characteristics
(measured at a viscosity of 32 mm
2
s
-1
)
The operating limit curves are set at the least favourable operating conditions, i.e. the maximum permissible fluid and ambient temperature and
the minimum control voltage.
Operating pr
essur
e p [bar (PSI)]
Flow Q [l/min (GPM)]
Operating limit characteristics for a given temperature range and
a supply voltage equal to 90 % of the nominal voltage
Spool type
Z11 C11 H11 R11 R21 C51 Z51 R31 H51 X11 K11 X32 V51 R30 X30
1
5
4
2
3
5
1
4
4
2
6
3
3
7
7
70
80
(21.1)
(18.5)
(1450)
(2176)
(725)
(4351)
(5076)
(2901)
(3626)
0
10
20
30
40
50
100
150
50
300
350
200
250
60
(7.9)
(2.6)
6
3 2
5, 4
1
5, 6, 7
7
(5.3)
(10.6) (13.2) (15.9)
1, 2, 3, 4
