Atos DHI-O711 23 24DC Valve

3
MAIN CHARACTERISTICS, SEALS AND HYDRAULIC FLUID - for other fluids not included in below table, consult our technical office
Subplate surface finishing
Any position for all valves except for type - 70 and 77 (without springs) that must be installed with
horizontal axis if operated by impulses Roughness index Ra 0,4 - flatness ratio 0,01/100 (ISO 1101)
MTTFd values according to EN ISO 13849
150 years, for further details see technical table P007
Ambient temperature
Standard = -30°C ÷ +70°C
/PE option = -20°C ÷ +70°C
/BT option = -40°C ÷ +70°C
Storage temperature
Standard = -30°C ÷ +80°C
/PE option = -20°C ÷ +80°C
/BT option = -40°C ÷ +80°C
Surface protection
Body: zinc coating with black passivation
Corrosion resistance
Salt spray test (EN ISO 9227) > 200 h
Assembly position / location
Compliance
Seals, recommended fluid temperature
Coil: plastic incapsulation
CE to Low Voltage Directive 2014/35/EU RoHS Directive 2011/65/EU as last update by 2015/65/EU
REACH Regulation (EC) n°1907/2006
NBR seals (standard) = -20°C ÷ +80°C, with HFC hydraulic fluids = -20°C ÷ +50°C
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 mm2/s - max allowed range 2.8 ÷ 500 mm2/s
Max fluid contamination level
ISO4406 class 20/18/15 NAS1638 class 9, see also filter section at www.atos.com or KTF catalog
Hydraulic fluid Mineral oils
Suitable seals type NBR, FKM, HNBR
Classification HL, HLP, HLPD, HVLP, HVLPD
FKM
HFDU, HFDR
Flame resistant without water
Rated flow
NBR, HNBR As shown in the symbols of table 2 Ports P,A,B: 350 bar;
Port T 120 bar See diagrams Q/Δp at section 6
Maximum flow
60 l/min, see operating limits at section 7
Flame resistant with water Flow direction Operating pressure
3.1 Coils characteristics Insulation class Protection degree DIN EN 60529
Relative duty factor Supply voltage and frequency Supply voltage tolerance
Certification 4
1
2 3
5
HFC
Ref. Standard
DIN 51524
ISO 12922
H (180°C) Due to the occuring surface temperatures of the solenoid coils, the European standards
EN ISO 13732-1 and EN ISO 4413 must be taken into account
IP 65 (with connectors 666, 667, 669 or E-SD correctly assembled) 100% See electric feature 6
± 10% CURUS
NOTES
Options A = Solenoid mounted at side of port B (only for single solenoid valves). In standard versions, solenoid is mounted at side of port A.
WP = prolonged manual override protected by rubber cap - see section 11 .
The manual override operation can be possible only if the pressure at T port is lower than 50 bar.
MV, MO = auxiliary hand lever positioned vertically (MV) or horizontally (MO). For available configuration and dimensions see table E138.
Accessories WPD/H = manual override with detent, to be ordered separately, see tab. K150
Special shaped spools
- spools type 0 and 3 are also available as 0/1 and 3/1 with restricted oil passages in central position, from user ports to tank.
- spools type 1, 4, 5 and 58 are also available as 1/1, 4/8, 5/1 and 58/1. They are properly shaped to reduce water-hammer shocks during the
swiching.
- spools type 1, 3, 8 and 1/2 are available as 1P, 3P, 8P and 1/2P to limit valve internal leakages.
- spool type 1/9 has closed center in rest position but it avoids the pressurization of A and B ports due to the internal leakages.
- Other types of spools can be supplied on request.
ELECTRIC FEATURES
External supply nominal voltage ± 10% 6 DC 9 DC 12 DC 14 DC 18 DC 24 DC 28 DC
48 DC 110 DC 125 DC 220 DC 24/50 AC 24/60 AC 48/50 AC 48/60 AC 110/50 AC
120/60 AC 230/50 AC 230/60 AC 110/50 AC 120/60 AC 230/50 AC 230/60 AC
Voltage code 6 DC 9 DC 12 DC 14 DC 18 DC 24 DC 28 DC 48 DC 110 DC 125 DC
220 DC
Type of connector
Power consumption (2)
33 W 666 or 667
48/50/60 AC
60 VA (3)
110/50/60 AC 120/60 AC 230/50/60 AC 230/60 AC
230RC
DHI COU-6DC/ 80 COU-9DC /80 COU-12DC /80 COU-14DC /80 COU-18DC /80 COU-24DC /80
COU-28DC /80 COU-48DC /80 COU-110DC /80 COU-125DC /80 COU-220DC /80 COI-24/50/60AC /80 (1)
24/50/60 AC
110RC
Code of spare coil
669
Colour of coil label brown light blue green brown blue red silver silver
black silver black pink
COI-48/50/60AC /80 (1)
white
COI-110/50/60AC /80 (1) COI-120/60AC /80 COI-230/50/60AC /80 (1) COI-230/60AC /80
yellow white light blue silver
COU-110RC /80
gold
COU-230RC /80
blue
33 W
(1) Coil can be supplied also with 60 Hz of voltage frequency: in this case the performances are reduced by 10÷15% and the power consumption is 55 VA
(2) Average values based on tests preformed at nominal hydraulic condition and ambient/coil temperature of 20°C.
(3) When solenoid is energized, the inrush current is approx 3 times the holding current. Inrush current values correspond to a power
consumption of about 150 VA.