Intrinsically Safe Miniature Solenoid Valves

Transcription

1 Intrinsically Safe Miniature Solenoid Valves 5 Order/Technical Support Tel: (800) 6775 / FAX: (800) / 5/6

2 Intrinsically safe miniature solenoid valves EEx ia T6 approval no. 9 C 604X For mounting on subbase or footprint in accordance with CNOMO recommendation E 06620N Part numbers (and voltages) Voltage max. power consumption U nominal Supply voltage (barrier output or interface) 2 Vdc 0.70 W between 5 and 8 Vdc inc. U nominal Supply voltage (barrier output or interface) 24 Vdc 0.70 W between 2 and 28 Vdc inc. Function Versions Symbols Without manual override With manual override /2 NC /2 NC impulse /2 NC latched (/4 turn) Characteristics Permitted fluids filtered 0 µ, lubricated (ASTM2) or not Operating pressure bars Orifice diameter mm Flow at 6 bars NL/min Flow coefficient KV Temperature operating C fluid C Switching time ms Mechanical life operations Construction Stainless steel, brass NBR, PA 66 Weight g Duty factor Insulation class IEC 85 Degree of protection with connector (IEC 529) (see page 5/67) with subbases / (see page 5/66) Pneumatic connections Geometry of footprint via miniature pilot sub base On modules /200/ /200 Electrical connections 2 spade terminals on coil 90 rotatable via connector rotatable via miniature pilot sub base types 8 5 /8 54 via miniature sub base types 8 5 /8 57 air or inert gases to 5.5 x % ED F IP 65 see page 5/5 see page 5/5 see page 5/67 see page 5/66 air or inert gases to 5.5 x % ED F IP 65 see page 5/5 see page 5/5 see page 5/67 see page 5/66 air or inert gases to 5.5 x % ED F IP 65 see page 5/5 see page 5/5 see page 5/67 see page 5/66 Dimensions 9.4 Locating pin Ø 4 ext. ht spade terminals 2.8x Other information Manual override Note: Our intrinsically safe miniature solenoid valves have a locating pin which prevents their mounting on our standard subbases. They must be used only with our subbases approved to EEx ia T6 as shown on page 6/6. To achieve EEx ia T6 when using a plug type connector, only our connector (approved for use with our miniature solenoid valves ) must be used. Footprint 6 min. 9 min. 2 x M 6H depth 6 Solenoid valve projects on this side 7 min. Adjacent side of footprint when valves mounted in bank Standard products 9,7,8 2,4,8 To order, specify : 7,5 min. 7,5 min. 2 or Ø.6 min 2 max Part number Example : Intrinsically safe miniature solenoid valve /64 Order/Technical Support Tel: (800) 6775 / FAX: (800) /

3 General information Low consumption (0.7W), CROUZET /2 miniature solenoid valves comply with European Standards EN 5004 and EN relating to equipment operating in potentially explosive atmospheres. These intrinsically safe products are recommended for the chemical, petrochemical, gas and mining industries, etc. Important : These intrinsically safe miniature solenoid valves must be individually connected to an approved safety barrier. Placed in a safe zone, these barriers make it possible to supply intrinsically safe miniature solenoid valves installed in a hazardous zone. Hazardous Zone Non Hazardous Zone Category ia Ignition must not be provoked during normal operation, nor in the presence of a single fault, nor in the presence of a combination of faults. Group II Electrical apparatus for places with a potentially explosive atmosphere, other than mines susceptible to firedamp. EEx ia T6 Temperature class T6 Maximum surface temperature = 85 C C (gas group) More severe subdivision including hydrogen, acetylene & carbon bisulphide. 2 + I max. U supply Intrinsically safe miniature solenoid valve Safety barrier or interface Safety description (to approval no. 9 C 604 X) / /5 U source EEx 8 V 28 V I max. / coil 74 ma 7 ma U supply = source of intrinsically safe supply to the miniature solenoid valve. I max. / coil = maximum current across the coil. R + The electrical connection between the safety barrier (or interface) and the miniature solenoid valve can be made with ordinary wires or cables. The inductance of the connecting line between the safety barrier and the solenoid valve must be less than 0.5 mh. Recommended barriers and interfaces These CROUZET recommended safety barriers and interfaces can be obtained from the manufacturers indicated below. When ordering, specify that they are to be used to supply miniature solenoid valves (type 8 59) EEx ia T6, no. 9.C604 X. For 2 Vdc miniature solenoid valves part numbers : / Manufacturer Barrier Interface GEORGIN BZC /00//79 MEASUREMENT TECHNOLOGY LTD STAHL MTL / AVB ICS /200 Approval laboratory BVS Gas group Authorized zones zones and 2 zones and 2 V supply barrier / interface 2 Vdc +/ 0% 220 Vac +/ 0% 2 Vdc +0% 5% 2 Vdc +0% 5% 24 Vdc +0% 5% For 24 Vdc miniature solenoid valves part numbers : / Manufacturer Barrier Interface GEORGIN BZC 24/6//4A MEASUREMENT TECHNOLOGY LTD PEPPERL & FUCHS STAHL A PUISSANCE MTL MTL Z 428 EX 9004/ AVB 09 MTL 224 MTL 02 KHDISD/EX4890A ICS /2020 ELVA5/0+A20 Approval laboratory BVS Gas group Authorized zones zones and 2 zones and 2 V supply barrier / interface 24 Vdc +/ 0% 220 Vac +/ 0% 20 to 26.6 Vdc 2 to 5 Vdc 80 to 260 Vac 20 to 5 Vdc 20 to 26.5 Vdc 20 to 5 Vdc 20 to 28 Vdc 20 to 0 Vdc 20 V 50 Hz general power supply + 24 Vdc control 5 Order/Technical Support Tel: (800) 6775 / FAX: (800) / 5/65

4 Subbases for intrinsically safe miniature solenoid valves EEx ia approval no. 9 C 604X Part numbers Subbases for tube for use with : Ø ext (mm) Miniature solenoid valves intermediate subbase end bases 4 Miniature control valves intermediate subbase, width Miniature control valves intermediate subbase, width Subbase width mm subbase 7.5 subbase 5 Function connections miniature control valves /200 /600 miniature control valves /200 Characteristics Pneumatic miniature solenoid valves and electrical /05 /4 /5 footprint 2 footprints footprint Permitted fluids lubricated (ASTM2) or not air or inert gases air or inert gases Operating pressure bars 0 to 8 0 to 8 Temperature operating C 0 to to +50 of fluid C 0 to +0 0 to +0 Subbase fixing by clip by end bases Rail mounting by rail EN width 5 mm Construction NBR, PA 66 fireproof, brass Integral pressure indicator Weight g Degree of protection Pneumatic connections Port function common supply Port function common exhaust Port 2 function miniature solenoid valve miniature control valve /600 output at rest (NO) output at rest (NO) Port "2" function miniature control valve /600 miniature control valve output at rest (NO) output at rest (NO) Port 4 function miniature control valve /200 miniature control valve output operating(nc) output operating(nc) output operating(nc) Port "4" function miniature control valve /200 output operating(nc) Integral pushin fittings (NFE 4900) Electrical connections Integral electrical connections number 2 Screw clamp clamping capacity : terminals mm 2 number 2 (A and A2) 2 (A and A2) Dimensions Associable subbases for miniature control valves EEx 8 5 and 8 56 Pair of end bases (see page 5/54 general catalogue) Electrical connections Visual indicator (see page 5/67) ,5 7,5 5 7,5 80 2,5 Miniature solenoid valve EEx 8 59 (see page 5/64) Miniature control valve 8 5 or 5 56 (see page 5/5) ø4 ø6 Mounted on Ω rail l.5 mm (EN 50022) Pushin connection for semirigid tubing Ø 4 mm (NFE 4900) Other information Note : Subbases / 076 and / 206 must be used with end bases and intermediate module (if required). 5/66 Order/Technical Support Tel: (800) 6775 / FAX: (800) /

5 EEx ia T 6 accessories General information CROUZET intrinsically safe subbases conform to European Standards EN 5004 and EN relating to equipment operating in potentially explosive atmospheres. These subbases must be individually connected to an approved safety barrier. (See recommended barriers & interfaces on page 5/65.) Part numbers Visual indicator 24 V 5060 Hz c Connector for solenoid valve Adaptor subbase for CNOMO 058 footprint Symbol Hazardous Zone A2 A Subbase for intrinsically safe miniature solenoid valve A = terminal A2 = + terminal Non Hazardous Zone R + Safety barrier Distinctive features of the EEx subbase : No integral electrical common No provision for earth pin There is provision for the locating pin for each intrinsically safe miniature solenoid valve Note : In order to satisfy the safety conditions of EEx ia T6 our intrinsically safe miniature solenoid valves must be used ONLY with the subbases shown on page 5/66. These subbases cannot be used for mounting our standard range of miniature solenoid valves (non approved). Characteristics Mounts between pilot solenoid valve and subbase Supplied in multiples Packet of 0 pieces Fixing Weight Connection of 5 of 0 g Dimensions Note : When using LED indicators only our indicator (approved for use with our miniature solenoid valves ) should be used to achieve EEx ia T6. 0 Connector ref (rotatable in 90 steps) Miniature solenoid valve 8 59 see page 5/64 CNOMO footprint E 06620N for mounting miniature solenoid valve 8 59 Mounting on CNOMO / NFE footprint Control 2 signal t Earth (4) 4,7 52 max. 2 screws M4x0 8 7 max. 52 max Fixing onto CNOMO /NFE footprint by 2 cap screws M4x0 (NFE 2527) 4 25 Note : When using plug connectors, only our connectors (approved for use with our miniature solenoid valves ) should be used to achieve EEx ia T6. Standard products Part number To order, specify : Example : Subbase for miniature solenoid valve Order/Technical Support Tel: (800) 6775 / FAX: (800) / 5/67

6 Intrinsically safe pressure switches EEx ia T6 approval no. 9 C 605X Conform to the Low Voltage Directive Can be used without enclosure according to IEC 664 pollution group III Part numbers Fixing DIN rail 5 mm EN Function Version Symbol control manual override pressure with Characteristics Permitted fluids air, inert gases and liquids Adjustable switching pressure (* set at 0.) bar Hysteresis at bar at 2 bars at 4 bars at 6 bars Pressure indicator Temperature operating C of fluid C Mechanical life operations Maximum voltage V Construction POM, brass, AU4G Weight g Degree of protection IEC 529 Pneumatic connections Pushin connection for semirigid tubing Ø 4 mm (NFE 4900) Connection Tapped holes /8 BSP Electrical connections Integral electrical connections Screw terminals number Wire crosssection mm 2 Terminal capacity mm 2 Dimensions 2 to Vdc 48 (24) Electrical connection Adjustment of switching pressure Manual override Pneumatic indicator Pilot signal Other information On request : Low pressure version from 0.2 to.2 bars Vacuum version adjustable from 0. to bar Standard products To order, specify : Reference Example : Intrinsically safe pressure switches /68 Order/Technical Support Tel: (800) 6775 / FAX: (800) /

7 General information CROUZET intrinsically safe pressure switches conform to European Standards EN 5004 and EN50020 relating to equipment operating in potentially explosive atmospheres. These intrinsically safe products are recommended for the chemical, petrochemical, gas and mining industries, etc. These intrinsically safe pressure switches must be individually connected to an approved safety barrier. Placed in a safe zone, these safety barriers make it possible to supply intrinsically safe pressure switches installed in a hazardous zone. Hazardous Zone Non Hazardous Zone 4 2 a U < 60 V R + Intrinsically safe pressure switch Safety barrier or interface = common 2 = NC contact 4 = NO contact The electrical connection between the safety barrier (or interface) and the pressure switch can be made with ordinary wires or cables. The maximum intrinsically safe supply voltage must not exceed 60V. Recommended barriers and interfaces These CROUZET recommended safety barriers and interfaces can be obtained from the manufacturers indicated below. Specify when ordering that they are to be used to supply intrinsically safe pressure switches (type 8 5) EEx ia T6, no. 9.C605 X. For CROUZET intrinsically safe pressure switches Manufacturer Barrier GEORGIN BZC 24/20//275 MEASUREMENT TECHNOLOGY LTD PEPPERL & FUCHS GB LTD STAHL MTL 787 S + MTL Z 428 EX 900/ Interface RD RD 2 MTL 220 B MTL 0 MTL 40 KHD2RW/EX KHA6RW/EX ICS PAK 9250 ICS / Approval laboratory Gas Group Authorised zones 5 Order/Technical Support Tel: (800) 6775 / FAX: (800) / 5/69

8 Intrinsically safe electropneumatic miniature control valves EEx ia T6 Mounting Connectors EEx ia T6 When using plug connectors, only our connectors (which have been approved for use with our miniature solenoid valves ) should be used, to comply with EEx ia T6. Cabinet Machine Miniature solenoid valves EEx ia T6 Indicators EEx ia T6 When using LED indicators, only our indicators (which have been approved for use with our miniature solenoid valves ) should be used, to comply with EEx ia T6. Valve modules Poppet /2 monostable (7.5 mm) 4/2 monostable (7.5 mm) Slide valve 4/2 bistable (5 mm) 4/2 monostable springreturn (5 mm) Subbases EEx ia T6 For miniature solenoid valves For valve modules For valve modules Associable Single Double Individual Complete product EEx ia T6 5/70 Order/Technical Support Tel: (800) 6775 / FAX: (800) /