Hazardous Area Zone 1 & Zone 2 ATEX | Flameproof Control Systems
Flameproof Control Systems – Zone 1 & Zone 2 ATEX Certified
Flameproof Control Systems
EXHEAT flameproof control systems and display panels are designed and engineered to the hazardous area concepts of Ex d and Ex de and are certified according to ATEX and IECEx hazardous area classifications – suitable for Zone 1 and Zone 2 installation.
Full heat dissipation calculations are performed on Ex d and Ex de hazardous area concept panels to ensure full certification rules are followed. Flameproof control systems are available in GRP, marine grade alloy or stainless steel.
Flameproof Control Systems
Flameproof Control Systems
Ex d or Ex de HAZARDOUS AREA
- ATEX approved control systems
II 2 G - CENELEC, IECEx certified
- Ex d or Ex de IIB or IIC T1 to T6
- Suitable for both Zones 1 & Zone 2 hazardous areas
- Certified weatherproof to IP66
- Can be installed in conditions ranging from -20°C to +40°C
HAZARDOUS AREA CLASSIFICATION
Ex d or Ex de IIB or IIC T1 to T6
T6 Maximum Surface Temp <85ºC
Ex d & Ex de flameproof concepts
Ex d – “Flameproof Enclosure” Protection EN 50018 where the potentially explosive or incendive components are contained within an enclosure into which the flammable atmosphere can enter but which will contain any resultant explosion and prevent its transmission outside the enclosure into the hazardous area. Ex de solutions combine the benefits of both the increased safety Ex e and flameproof Ex d types of protection.
explosion protection type flameproof Ex d explained
hazardous area equipment protection levels
| Ga | Gb | Gc | Da | Db | Dc | Ma | Mb |
| Zone 0 | Zone 1 | Zone 2 | Zone 20 | Zone 21 | Zone 22 | Energised | De-energised* |
- G=gas, D=dust, M=mining
- *in presence of explosive atmospheres
hazardous areas & T CLASSes
Temperature class is defined by ignition temperature – the lowest temperature at which a vapour will be ignited.
Flashpoint is the lowest temperature at which a liquid generates sufficient vapour to support ignition – this vapour could be ignited by temperature or energy (i.e. a spark).
| Temperature Class | Max. Surface Temperature |
| T1 | <450ºC – eg Acetone/Methane Gas Group IIA |
| T2 | <300ºC – eg Butane/Propane Gas Group IIA |
| T3 | <200ºC – eg Heptane/Ethylene Gas Group IIA |
| T4 | <135ºC – eg Ethyl Methyl Ether/Hydrogen Gas Group IIB |
| T5 | <100ºC |
| T6 | <85ºC |
- there is no connection between ignition energy and ignition temperature
EXHEat
T&D are Master Distributors & Stockists for EXHEAT a world leader in the design and manufacture of Hazardous Area Electrical Process Heaters & Control Systems for the global oil, gas and petrochem industries.
T&D distribute EXHEAT Electric Heaters for process flow of liquids and gases in hazardous areas (Zone 1 & Zone 2) certified to ATEX & IECEx standards.
➡ Did you know? EXHEAT FAW hazardous area air warmers provide lightweight air warming where the potentially explosive atmosphere is classified as a Zone 1 or 2 (IIA, IIB, IIC) gas group.
➡ T&D Hazardous Area Sales Team are trained and certificated according to the CompEx Scheme – a global solution for validating core competency of employees and contract staff of major users in the gas, oil and chemical industries.
T&D UK & Exports are Approved Vendors to the world’s leading oil and gas exploration companies, their EPC’s and framework suppliers.
