EXPLOSION PROOF DIRECTIONAL CONTROL VALVE TYPE ED6 SERIE 5X CENELEC STANDARD & ATEX DIRECTIVE

Transcription

1 EXPLOSION PROOF DIRECTIONAL CONTROL VALVE TYPE ED6 SERIE 5X CENELEC STANDARD & ATEX DIRECTIVE NOT/E 10-60/11-0 CARACTERISTICS Hydraulic : Cetop 3. Maximum pressure in service : 315 ar. Nominal flow. : 60 l/mn. 37 hydraulic symbols. Electric : Protection index : IP 66. CENELEC Standard & ATEX Directive Non-Mining : II GD EExd or EExde, IIC. Temperature range : T6,T5, T. Mining : EEx"d" or EEx"de, I M. Connections on terminal box or taped flange ED6 D5X/EX800 -DC-T6 PA H1d DESCRIPTION OF FUNCTION Directional control valves type ED 6 are solenoid operated directional spool valves. They control start, stop and direction of an oil flow. These valves basically consist of the housing (1), one or two solenoids (), the control spool (3), and return springs (). In unoperated condition the control spool (3) is held in the neutral or starting position by the return springs () (except for type O and OF). The operation of the control spool is by means of oil immersed solenoids (). The force of the solenoid () acts via the plunger (5) on the control spool (3) and pushes it from its rest position into the required end position. When the solenoid is de-energised (), the control spool (3) is returned to its original by the return springs (). An hand emergency button, allows movement of the control spool (3) without solenoid energisation. TYPE : ED6 C or D 5X/O these are directional valves with switching positions and solenoids without locking. When the solenoid is energised there is no median position (without return springs). TYPE : ED6 C or D 5X/OF these are directional valves with switching positions and solenoids with locking in position. CARDRIDGE THROTTLE Use of the cardridge throttle is necessary when, because of the given operating conditions, flow larger than that allowed by the valve operating limits arise during spool cross-over. P ED6...5X A T (P) -1-

2 GENERALITY Oil immersed direct curent solenoid (1) impervious to 100 bar maximum pressure, its mechanical impact strength is approved by the CENELEC for explosion proof equipment. Insulation to IP 66, it can work in tropical climates. The plunger operate in oil to reduce friction, dissipate head and cushions and drives control spool. Direct curent solenoid has the advantages of : - slow movement of the control spool. - energized maintenance of the control valve in intermediary position, is not detrimental to the solenoid. The solenoid housing can be oriented in steps of 90 on directional control valve. ELECTRIC CONNECTION JUNCTION IN OX FOR GROUP I AND IIC The terminal box (3) can be oriented in steps of 5 on the solenoid housing (1). The electrical connector on the outlet terminal box (6) can be arranged horizontally (on terminal box 3) or vertically (on cover ) suitable for cable gland. The execution H is recommended for easy access to the terminal strip. JUNCTION ON FEMALE TAPED FLANGE FOR GROUP II ONLY. Connection with threaded rigid conduit approved in group II only. Seal integrated in the housing. Earth connection (5). The lead wire length normally supplied is 1.5 meter. Active lead wires (7). Earth lead wire (8). One earth connection (5) is available inside or outside the terminal box. Model H1, H,... (ox) Horizontal connection. Model 1,... (Flange) DIFFERENT PROTECTION MODES. 1) Protection EEx "d" On terminal strip (A) inside the explosion proof terminal (3A) box suitable for 0.5 to.5 mm² with cable gland EEx "d". ) Protection EEx "e" On terminal strip () inside the increased safety terminal box (3) suitable for 0.5 to.5 mm² with cable gland EEx "e". 5 CALE GLAND RECOGNIZED PE option (see page 5). Cable gland for unarmored cable EEx"d" IIC recognized in 1/" NPT Also available in EEx"d", EEx"e" group I or group IIC for armoured, unamored or mineral cable : Consult us. 5 --

3 CARACTERISTICS HYDRAULIC Maximum operating pressure : Ports A,, P. Fluid cleanliness bar Maximum operating pressure : Port T. bar 100 With spool type A and, port T must be used as a drain port, if the operating pressure lies above 100 ar. Maximum flow Hydraulic fluid Fluid temperature range Viscosity range Weight : Standard symbol : 3 others symbols (see page 6) Mounting position : C mm /s - valve with 1 solenoid (Kg) - valve with solenoids (Kg) - 3 Positions - Positions 315 see operating curves of pressure drop page 8 Mineral oil De -30 à +70 De.8 à 350 Class 9 NAS 1638 issue 7 D E G Optional. Optional - Horizontal prefered. Y J ELECTRICAL Continous voltages available. V/DC Alternatives voltages available.* V/AC Temperature range with ambiente 0 C. Temperature range with ambiente 50 C. Power requirement. VA Protection index. Duty cycle. Maximum coil temperature. Outlet connection on terminal box or taped flange T6 T6 T5 T6 T6 T6 T6 T6 T6 T5 T5 T T5 T5 T5 T5 T5 T IP66 100% 130 C 1/ NPT-PG11-PG13.5-PG16-M16x1.5-M0x1.5-Mx1.5 *The alternatives voltages are available in EEx d version only. CERTIFICATE OF CONFORMITY European classification code Explosion proof Increased safety Approval number INERIS Group IIC EEx"d" IIC EEx"de" IIC 03 ATEX 00 X Group I EEx"d" I. EEx"de" I. 03 ATEX 00 X STANDARD Conformity to European Standards from 9/9/CE. Europe EN JUNE AMENDMENT 1 ET EN NOVEMER 000 EN JULY 000 EN SEPTEMER

4 HYDRAULIC CODE ED6 5X 3 service ports service ports 3 D Y OF O D D Middle position Normal position E J G Hydraulic housing series number 5X The above refer to symbols D, Y only. Without return spring, with locking control spool. Without return spring. With return springs No Code OF O The above refer to E, J, G,... Ect. With one solenoid side A and side.: With one solenoid side A. With one solenoid side. No code A For use when the flow is greater than the valve capacity, fitted in P line. Throttle Ø 0.8 MM : Throttle Ø 1,0 MM : Throttle Ø 1, MM : Without throttle : No code

5 ELECTRICAL CODE EX * PE Other cable gland, consult us. With standard cable gland. No code : Without cable gland. d e With EEx"d" box. With EEx"e" box. No code. : For EEx"d" taped flange : 1/" NPT : PG 11 3 : PG 13.5 : PG 16 5 : M 16 x : M 0 x : M x 1.50 H V Horizontal connection on the box. Vertical connection. On cover of the box. For taped flange, Group II only. P PV Control pushbutton. Side of Valve. Lock control pushbutton (for hydraulic valve. type OF). No code : Whithout control pushbutton. PA PVA Control pushbutton. Side A of Valve. Lock control pushbutton (for hydraulic valve. type OF). No code : Whithout control pushbutton. T... Temperature range see table on page 3 (For group II only). AC DC Solenoid energized in alterntive current. Solenoid energized in continous current Solenoid power supply in Volt. 1, 8, 96, 110, 00, 0... See table on page 3 for correspondance with the temperature range T, T5, T6. EX800 Solénoid in accordance to European standard CENELEC & ATEX Directive SERIES M Solenoid for use in mining ( Group I). No code : Solenoid for use in explosive atmosphere ( Group II). -5-

6 HYDRAULIC VARIATION SYMOL ( For special execution, consult us). positions with one solenoid side A. = A With return spring. = C positions with one solenoid side. =.../O.../OF = A.../... positions with solenoid sideaand side. Without return spring. With locking control spool. = C.../... positions with one solenoid side A. A A a 0 a 0 PT PT =EA =E1A positions with one solenoid side. A 0 PT b A 0 b PT =E =E1 a 3 positions with one solenoid side A &. A 0 PT b A a 0 b PT =E =E1 =FA =F =GA =G =HA =H =F =JA =J =H =LA =L =L =MA =M =M =PA =P =P =QA =Q =Q =RA =R =R =TA =T =T =UA =U =U =VA =V =V =WA =W =W -6-

7 DIMENSION (In MM) WITH EXPLOSION PROOF AND INCREASED SAFETY OX (Group I & II) 1 : ox cover. : ox housing. 3 : Solenoid housing side A. : Solenoid housing side. 5 : Hydraulic housing. 6 : fixing screws M5 x Housing box can be oriented all 5 on ACE Ref ED6 XXXXX EX DC- T Solenoid housing can be oriented all 90 on A P L = X WITH EEx"d" FEMALE TAPED FLANGE (For group II only, execution 1,...) 1 : Solenoid housing side A. : Solenoid housing side. 3 : Hydraulic housing. : fixing screws M5 x : Taped flange 6 : Length of lead wires normally : 1.5 Meter. Solenoid housing can be oriented all 90 on

8 CONTROL DIMENSION WITH CONTROL TYPE PVA/ OR PA/ WITHOUT CONTROL PUSHUTTON X = 180 maxi X = Ø 5 HYDRAULIC VALVE CONNECTION CETOP T M5 xdia 6 31 A OPERATING LIMIT P CURVES OF PRESSURE DROP Mesured at V : 36 mm ² /S, t : 50 C 11 Curve 7 : Symbol "r" In Switching Position : - A Curve 8 : Symbol "g" In Neutal Position : P - T Pressure Drop P( ar) Flow Q( L/mn)