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3.1 Materials used:
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).
3.2 Surface protection against corrosion:
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.
3.3 Basic technical parameters
Parameter
Maximum pressure in P, A, B channels
Maximum pressure in T channel
Maximum flow volume through the valve
Working fluid temperature range for NBR seal material
Working fluid temperature range for FPM seal material
Ambient temperature range
Working fluid kinematic viscosity range
Required minimum working fluid purity
Solenoid coil supply voltage tolerance
Maximum switching density
Lifetime
Approximate switching time at a kinematic viscosity of 32 mm2s-1
Approximate return time at a kinematic viscosity of 32 mm2s-1
Weight
3.4 Working fluid
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.
3.5 Valve characteristics
(measured at a viscosity of 32 mm
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 limit characteristics for a given temperature range and
a supply voltage equal to 90 % of the nominal voltage
(5076)
350
6
(4351)
300
(3626)
250
(2901)
200
(2176)
150
(1450)
100
(725)
50
10
20
0
(2.6)
(5.3)
(7.9)
Flow Q [l/min (GPM)]
Spool type
Z11 C11 H11 R11 R21 C51 Z51 R31 H51 X11 K11 X32 V51 R30 X30
1
5
4
2
3
5
www.argo-hytos.com
Operating_Instructions_RPE3-062x/xS3_14087_1en_05/2022
s
2
-1
3 2
7
1
5, 4
1, 2, 3, 4
5, 6, 7
30
40
50
60
70
80
(10.6) (13.2) (15.9)
(18.5)
(21.1)
1
4
4
2
6
Unit
bar
bar
l/min
°C
°C
°C
mm
s
2
-1
třída
% z U
N
Number/h
cycles
ms
ms
kg
)
3
3
7
7
Value
350
210
80
-30 to +80
- 20 to +80
-30 to +50
10 to 400
21/18/15 ISO 4406
±10
15 000
10
7
AC: 30-40 / DC 30-50
AC: 30-70 / DC 10-50
1.9
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