www.atos.com Table TE137obs/E Stainless steel valves for water base fluids standard or ex-proof solenoid valves with Multicertification TEX, IECEx, EC or CULUS certification UL certified valves are obsolete components - availability on request Ex-proof solenoid Valve body Solenoid plunger Spool / poppet Spring Manual override pin Cable entrance Standard solenoid DHXW4-07*/M DHOXW-* New line of directional solenoid valves with stainless steel internal parts for application with water base fluids. Features: These valves are made by selected inoxidizable materials for internal parts to withstand applications with water base fluids or just pure water. External components are derived from standard valves. Two basic versions are available, poppet type, 3-way leak free (suitable for accumulator systems) or spool type, 4- way on-off valves. The valves are available with standard or ex-proof solenoids, these last certified according to: - Multicertification TEX, IECEx, EC - CULUS certification ISO standard subplate mounting. Options for ex-proof version: Handwheel manual override (option /V) Manual reset (option /R) for safety applications Horizontal cable entrance. Common pplications: Steel plants, die casting, foundry. 1 STINLESS STEEL VLVES: MIN DT Code (1) Voltages Multicertification Description ISO size DC C T class (1) Input 50/60Hz Standard Option /7 Power T class (1) CULUS Input Power Max flow l/min Δp Max pressure (at max flow) bar (3) bar DHOXW DLOHXW DLOHMXW DLOPXW DHXW4 DHXW6 DLHXW4 DLHXW6 DLHMXW4 DLHMXW6 DLPXW6 4 way, spool type piloted solenoid valve 4 way, spool type piloted solenoid valve no no 24 110 220 24 48 110 220 24 110 230 T6 T6 T6 T6 T3 T3 T3 32 W (only for and 24 DC) 40 W (only for 110 and 220 DC) 8 W 25 W 8 W 25 W 8W 25 W 8 W (2) (2) (2) (2) W 33 W W 33 W W 33 W W 60 25 220 60 70 10 25 30 220 see diagram at section 350 350 350 350 250 Notes: 1) XW6 and XW4 versions differ only for the coil power (see Input Power) - For TEX, IECEx and EC multicertification the certified temperature class T6,, T3 is related to the max ambient temperature, from which results the max solenoid surface temperature allowed in the application (see section ). The reference ambient temperature is -40 +40 C (+45 for XW6), for higher ambient temperature (-40 +70 C) the temperature class has to be degraded. For CULUS certification the temperature class is related to the coil power W or 33W 2) For CULUS certification the temperature class corresponding to the coil power W is not reported in the nameplate marking. For coil power 33W the temperature class is. 3) Max pressure on T port = 110 bar Valves are provided by HNR seals, which allow min ambient temperature down to -40 C (max oil viscosity = 380 cst). The min ambient temperature for valves with PE option (FPM seals) is -20 C. Max ambient temperature without solenoids is 70 C TE137obs
2 MTERILS SPECIFICTION Valve type DHXW DHOXW DLOHXW DLOHMXW DLHXW DLHMXW DLOPXW DLPXW solenoid housing Cast iron Cast iron valve body ISI 316L ISI 630 internal parts + Cast iron ISI 316L ISI 316L, 420, 440C, 430F ISI 302 HNR (buna) FPM (viton) ISI 316L, 420, 440C, 430F ISI 316L, 420, 440C, 430F spring ISI 302 ISI 302 std HNR (buna) HNR (buna) seals /PE FPM (viton) FPM (viton) 3 EX-PROOF SOLENOIDS: MIN DT VLVE TYPE DHXW6 DLHXW6 DLHMXW6 DLHPXW6 DHXW4 DLHXW4 DLHMXW4 Solenoid code Voltage code VDC Multicertification OXW/WP OKXW/WP CULUS OXWUL/WP OKXWUL/WP Power Multicertification 8W 25W consumption CULUS W 33W Coil insulation Protection degree VC 50/60 Hz Duty factor Mechanical construction Cable entrance and electrical wiring Metod of protection Temperature class (surface temperature) mbient temperature ±10% ±10% Multicertification CULUS Multicertification CULUS Notes: (1) 48DC only for Multicertification For alternating current supply a rectifier bridge is integrated in the solenoid DC, 24DC, 48DC (1), 110DC, 220DC C, 24C, 110-0C, 230-240C Class H IP 66/67 ccording to IEC 144 when correctly coupled with the relevant cable gland, see table K600 100% Flame proof housing classified Ex d, according to EN 60079-0: 20, EN 6079-1: 2007 Internal terminal board for cable connection threaded connection M20x1,5 for cable entrance, vertical (standard) or Horizontal (option /O) Ex d T6 ( 85 C) ( 135 C) ( 135 C) T3 ( 200 C) Not applicable ( 135 C) -40 +45 C -40 +70 C -40 +40 C -40 +70 C -40 +70 C 4 MIN CHRCTERISTICS, SELS ND HYDRULIC FLUIDS - for other fluids not included in below table, consult our technical office ssembly position / location ny position for all valves Subplate surface finishing Roughness index Ra 0,4 - flatness ratio 0,01/100 (ISO 1101) Seals, recommended fluid temperature HNR seals (standard) = -40 C +60 C, with HFC hydraulic fluids = -40 C +50 C FKM seals (/PE option) = -20 C +80 C Recommended viscosity 15 100 mm 2 /s - max allowed range 2.8 500 mm 2 /s Fluid contamination class ISO 44 class 21/19/16 NS 1638 class 10, in line filters of 25 μm (β10 _>75 recommended) Hydraulic fluid Suitable seals type Classification Ref. Standard Mineral oils HNR, FKM HL, HLP, HLPD, HVLP, HVLPD DIN 51524 Flame resistant without water FKM HFDU, HFDR Flame resistant with water HNR HFC ISO 922
5 CULUS CERTIFICTION CULUS marking Class I = Equipment for famable gas and vapours Division 1 = Possibility of explosive atmosphere during normal functioning Groups C&D = Gas group (according to UL 1002) Groups II&II = Gas group (according to NEC 505-7) = Temperature class of solenoid surface referred to +70 C ambient temperature EXMPLE OF NMEPLTE MRKING Notified body and certificate number Marking according to UL Directive 6 MULTICERTIFICTION TEX, IECEx, EC In the following are resumed the valves marking according to multicertifications for Group II GROUP II, TEX, marking II 2 G = Solenoid for surface plants with gas and vapors environment, category 2, suitable for zone 1 and zone 2 Ex d = Explosion-proof equipment II C = Equipment of group IIC suitable for substances (gas) of group IIC T6/ = Solenoid temperature class (maximum surface temperature) Gb = Equipment protection level, high level protection for explosive Gas atmospheres = Mark of conformity to the applicable European directives II 2 D = Solenoid for surface plants with dust environment, category 2, suitable for zone 21 and zone 22 Ex d = Explosion-proof equipment III C = Suitable for conductive dust (applicable also III and/or III) IP66/67 = Protection degree T85/T135 = Maximum surface temperature (Dust) Db = Equipment protection level, high level protection for explosive Dust atmospheres = Mark of conformity to the 94/9/CE directive and to the technical norms GROUP II, IECEx marking Ex d = Explosion-proof equipment IIC = Equipment of group IIC suitable for substances (gas) of group IIC T6/ = Solenoid temperature classes (Gas) Gb = Equipment protection level, high level protection for explosive Gas atmospheres Ex tb = Equipment protection by enclosure tb IIIC = Suitable for conductive dust (applicable also III and/or III) T85 C/T135 C = Maximum surface temperature (Dust) Db = Equipment protection level, high level protection for explosive Dust atmospheres IP66/67 = Protection degree tex notified body and certificate number Marking according to TEX Directive IECEx notified body and certificate number Marking according to IECEx Directive Russian notified body and certificate number Marking according to TEX Directive EXMPLE OF NMEPLTE MRKING 6.1 EC marking EC certification acknowledges the whole TEX Directive 94/9/EC. This certification is available only for gas environment (not for dust). II 2 G = Solenoid for surface plants with gas and vapors environment, category 2, suitable for zone 1 and zone 2 Ex d = Explosion-proof equipment II C = Equipment of group IIC suitable for substances (gas) of group IIC T6/ = Solenoid temperature class (maximum surface temperature) = Mark of conformity to the 94/9/CE directive and to the technical norms
7 SPOOL TYPE DIRECTIONL SOLENOID VLVES: MODEL CODE - - / DH XW 4 * 0 63 1/2 M V 24DC ** Spool type - direct = ex-proof solenoids O = standard solenoids /* Seals material, see section : - = NR PE = FKM Stainless steel execution for internal parts Series number Temperature class, see sect. (only for DH) 4 = 6 = T6 Certification type - omit for Multicertification /UL = CULUS with 1 m cable lenght, factory wired Voltage code - see section Options: = solenoid at side of port Options (only for DH): V = with handweel manual override O = horizontal cable entrance Size: 0 = Solenoid threated connection (only for DH): M = M20x1,5 UNI-4535 (6H/6g) Valve configuration, see section 7.1 NPT = 1/2 NPT NSI 2.1 (tapered) only for /UL 61, 63, 71, 75 (configurations 63 and 75 are available only with spool type 1/2) Spool type, see section 7.1 7.1 Hydraulic configuration Configuration for DH Spools for DH Configuration for DH Spools for DH -1* 1 0 0 1 0 2-3* 1 2 1/2 1 0 2-1*/ 1 0 2 1 2 3-3*/ 1 0 2-071* 6-075 1 2 7 8 POPPET TYPE LEK FREE DIRECTIONL SOLENOID VLVES: MODEL CODE Standard solenoid DLOH = direct ( l/min) DLOHM = direct (25 l/min) DLOP = electro-hydraulically piloted Ex-proof solenoid DLH = direct (10 l/min) DLHM = direct (25 l/min) DLP = electro-hydraulically piloted Stainless steel execution for internal parts Temperature class, see sect. (only for ex-proof solenoids) 4 = (for DLH and DLHM) 6 = T6 (for all ex-proof models) Certification type - omit for Multicertification /UL = CULUS with 1 m cable lenght, factory wired 3 = three way DLOH XW 6 * - 3 - M / V 24DC ** /* Valve configuration, see section 8.1 = to T in rest position Series number Voltage code - see section Options (only for ex-proof solenoids): R = with solenoid manual reset V = with handweel manual override O = Horizontal cable entrance Only for DLPXW D = internal drain E = external pilot pressure Seals material, see section : - = NR PE = FKM Solenoid threated connection (only for ex-proof solenoids): M = M20x1,5 UNI-4535 (6H/6g) NPT = 1/2 NPT NSI 2.1 (tapered) only for /UL C = P to in rest position 8.1 Hydraulic configuration DLHXW*-3/M/V DLHXW*-3C/M DLHMXW*-3/M-O/R DLHMXW*-3C/M-O P T P T P T P T DLPXW6-3/M DLPXW6-3C/M P T X Y P T X Y TE137obs
9 Q/Δp DIGRMS (based on mineral oil ISO VG 46 at 50 C) DHOXW, DHXW4 DLOHXW, DLHXW DLOHMXW, DLHMXW valve pressure drop [bar] valve pressure drop [bar] C valve pressure drop [bar] F E D DLOPXW, DLPXW DHOXW, DHXW -T P- Flow direction P P T T P T Spool type 0 1, 1/2 3 6 Flow direction P Valve type (P ) DLOHXW-3 C DLOHXW-3C DLOHMXW-3 F T ( T) E 7 DLOHMXW-3C E D 10 OPERTING LIMITS OF ON/OFF DIRECTIONL CONTROLS (based on mineral oil ISO VG 46 at 50 C) The diagram have been obtained with warm solenoids and power supply at lowest value (Vnom -10%). For DHXW valves the curves refer to application with symmetrical flow through the valve (i.e. P and T). In case of asymmetric flow the operating limits must be reduced. DHOXW, DHXW4 DHXW6-O DLOHXW, DLHXW4 S M S M 3 3C M = Spools 0, 1 S = Spools 1/2, 3, 6, 7 M = Spools 0, 1 S = Spools 1/2, 3, 6, 7 DLOHMXW, DLHMXW DLHXW6 DLOPXW, DLPXW6 3 3C minimum piloting pressure Piloting pressure [bar] DLOHMXW-3 and DLOKXW4-3-O DLOHMXW-3C and DLOKXW4-3C-O DLOHMXW6-3(3C)-O 10.1 Internal leakages internal leakage of DLOHXW, DLOHMXW, DLOPXW: less than 5 drops/min (0,36 cm 3 /min) at max pressure. 10.2 Piloting pressure (DLOPXW) - max piloting pressure = bar - min piloting pressure = see diagram
11 INSTLLTION DIMENSIONS OF DHOXW [mm] ISO 4401: 2005 Mounting surface: 4401-03-02-0-05 4 socket head screws M5x50 class.9 Tightening torque = 8 Nm Seals: 4 OR 108 Ports P,,,T: Ø = 7.5 mm (max). P = PRESSURE PORT, = USE PORT T = TNK PORT For the max pressures on ports, see section DHOXW- DHOXW-07 Mass: 1,9 kg Mass: 2,6 kg Overall dimensions refer to valves with connectors type 666 INSTLLTION DIMENSIONS OF DLOHMXW [mm] DLOHMXW-3* ISO 4401: 2005 Mounting surface: 4401-03-02-0-05 4 socket head screws M5x50 class.9 Tightening torque = 8 Nm Seals: 4 OR 108 Ports P,,, T: Ø = 7,5 mm (max) DLOHMXW-3C DLOHMXW-3 P = PRESSURE PORT = USE PORT = CLOSED T = TNK PORT Mass: 1,6 Kg Mass: 1,6 Kg Overall dimensions refer to valves with connectors type 666 13 INSTLLTION DIMENSIONS OF DLOPXW [mm] Mounting surface of DLOPXW is not ISO standard 4 socket head screws M10x70-4-70 Tightening torque = 40 Nm Seals: 3 OR 3081; 2 OR 108 Ports P,,T: Ø = 16 mm (max) Ports X, Y: Ø = 7 mm (max) DLOPXW-3* Mass: 7 kg Overall dimensions refer to valves with connectors type 666 TE137obs
14 INSTLLTION DIMENSIONS OF EX-PROOF DHXW [mm] horizontal cable entrance option /O ISO 4401: 2005 Mounting surface: 4401-03-02-0-05 4 socket head screws M5x50-4-70 Tightening torque = 5,5 Nm Seals: 4 OR 108 Ports P,,,T: Ø = 7.5 mm (max). P = PRESSURE PORT, = USE PORT T = TNK PORT DHXW*(/UL)-* DHXW*(/UL)-*/V Mass: 2,9 kg Mass: 3 kg DHXW*(/UL)-07* DHXW*(/UL)-07*/V Mass: 4,6 kg Mass: 4,8 kg Only for /UL: factory wired cables (see section 17 for solenoid wiring) 15 INSTLLTION DIMENSIONS OF EX-PROOF DLHXW ND DLHMXW [mm] horizontal cable entrance option /O ISO 4401: 2005 Mounting surface: 4401-03-02-0-05 4 socket head screws M5x50-4-70 Tightening torque = 5,5 Nm Seals: 4 OR 108 Ports P,,,T: Ø = 7.5 mm (max). P = PRESSURE PORT, = USE PORT T = TNK PORT DLHXW*(/UL)-3/M/V DLHXW*(/UL)-3C/M Mass: 3 kg Mass: 2,9 kg DLHMXW*(/UL)-3/M/R DLHMXW*(/UL)-3C/M Mass: 3,8 kg Mass: 2,9 kg Only for /UL: factory wired cables (see section 17 for solenoid wiring)
16 INSTLLTION DIMENSIONS OF EX-PROOF DLPXW [mm] Mounting surface of DLOPXW is not ISO standard 4 socket head screws M10x70-4-70 Tightening torque = 40 Nm Seals: 3 OR 3081; 2 OR 108 Ports P,,T: Ø = 16 mm (max) Ports X, Y: Ø = 7 mm (max) DLPXW6(/UL)-3/M DLPXW6(/UL)-3C/M dotted line option /O option /V 66 66 181 153 115 87 85 105 25 115 215 70 Mass: 7 kg Only for /UL: factory wired cables (see section 17 for solenoid wiring) 17 SOLENOID WIRING Terminal board (Multicertification TEX, IECEx, EC) Wired cables (UL) 1 = Coil 2 = GND 3 = Coil Coil GND Coil C white green black DC red green black 18 CLE GLNDS - to be ordered separately - see technical table K600 Wiring specifications The cable must be suitable for the working temperature as specified in the safety instructions delivered with the first supply of the products. dditional equipotential grounding can be also performed by the user on the external facility provided on the solenoid case. Minimum section of external ground wire = 4 mm 2. Minimum section of internal ground wire = the same of supply wire. 05/17