On-off ex-proof solenoid valves
multicertification ATEX, IECEx, EAC
Table E120-28/E
E120
DHA-06*
valve body
spool
ex-proof solenoid
manual override
threaded connections for cable gland or conduit pipe
internal terminal board for cable connection
On/off valves equipped with explosion-proof
solenoids available with following
multicertifications:
Multicertification for solenoids group II for
surface plants with gas, vapours and dust
environment
• ATEX 2014/34/UE
Ex II 2G Ex d IIC T6/T4 Gb
Ex II 2D Ex tb IIIC T85°C/T135°C Db
• IECEx worldwide recognized certification
Ex d IIC T6/T4 Gb
Ex tb IIIC T85°C/T135°C Db
• EAC EurAsian Certification
Ex II 2G Exd IIC T6/T4
Multicertification for solenoids group I for
surface, tunnels or mining plants
• ATEX 2014/34/UE: Ex I M2 Ex db I Mb
• IECEx: Ex db I Mb
DHA and DLAH are SIL compliance with
IEC 61508 (TÜV certified) - see section 3.6
The solenoid case is designed to contain the
possible explosion which could be caused
by the presence of the gas mixture inside
the housing, thus avoiding dangerous
propagation in the external environment.
They are also designed to limit the external
temperature according to the certified class
to avoid the self ignition of the explosive
mixture present in the environment.
Method of protection Ex d
Temperature class (only for Group II) T6 T4
Surface Multicertification for
Group II
£ 85 °C £135 °C
temperature
Multicertification for
Group I (mining)
150 °C
Ambient Multicertification for
Group II
-40 ÷ +45 °C (2) -40 ÷ +70 °C (2)
temperature
Multicertification for
Group I (mining)
-20 ÷ +70
1 EX-PROOF SOLENOIDS: MAIN DATA
SOLENOID TYPE ON/OFF
Multicertification for Group II OA
Multicertification for Group I (mining) OAM
Solenoid
code
Power consumption 8W
Coil insulation Class H
Protection degree
IP 66/67 According to IEC 144 when correctly coupled
with the relevant cable gland PA*, see section
16
Duty factor 100%
Mechanical construction
Cable entrance and
electrical wiring
Flame proof housing classified Ex d, according to EN 60079-0: 2006, EN 60079-1: 2007
Internal terminal board for cable connection. Threaded connection for cable entrance,
vertical (standard) or horizontal (option /O). See section for cable gland and wiring
16
Voltage 12DC, 24DC, 28DC, 48DC, 110DC, 125DC, 220DC
code
12AC, 24AC, 110-120AC, 230-240AC (1)
VDC
VAC 50/60 Hz
(1) For alternating current supply a rectifier bridge is provided built-in the solenoid
(2) The Group II solenoids are certified according to ATEX and IECEx for minimum ambient temperature -40°C.
In case the complete valve must withstand with minimum ambient temperature of -40°C, select /BT in the model code
±10%
±10%
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
2
MAIN CHARACTERISTICS, SEALS AND HYDRAULIC FLUID -
for other fluids not included in below table, consult our technical office
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, in line filters of 25 mm (b10 _>75 recommended)
Assembly position / location Any position for all valves
Subplate surface finishing Roughness index Ra 0,4 - flatness ratio 0,01/100 (ISO 1101)
A
B