2026-09-21 · KeXinMaterials Redaktionsteam
Öl & Gas Explosionsschutzkoffer: ATEX/IECEx Zone 1 Zone 2 B2B-Leitfaden 2026
Die Öl- & Gasindustrie verlangt Explosionsschutzkoffer für Zone 1/2-Bereiche. ATEX (EU) + IECEx (international) + UL Class I/II (US)-Zertifizierungen erforderlich. Koffer müssen leitfähigen Schaumstoff + funkenfreie Hardware verwenden.
Gefahrenbereichsklassifizierung (ATEX/IECEx)
ATEX Zone 1 / Zone 2 / Zone 21 / Zone 22 + IECEx equivalent classifications define where explosion-proof equipment is required. Misclassification is a safety + legal risk.
Zone 1 (gas): area where explosive gas atmosphere is likely to occur in normal operation. Continuous presence = high risk. Required: Ex d (flameproof) or Ex e (increased safety) enclosures.
Zone 2 (gas): area where explosive gas atmosphere is not likely to occur in normal operation, and if it does, only for short periods. Lower risk. Required: Ex n or equivalent.
Zone 21 (dust): area where combustible dust cloud is likely to occur in normal operation. Required: Ex tD (dust) enclosures.
Zone 22 (dust): area where combustible dust cloud is not likely to occur in normal operation. Lower risk.
Common in oil & gas: Zone 1 (refinery, drilling rig interior), Zone 2 (refinery exterior, tank farm), Zone 21 (grain processing, chemical), Zone 22 (similar).
Ex-Schutzarten
Ex d (flameproof), Ex e (increased safety), Ex i (intrinsic safety), Ex tD (dust) are the main protection types. Choice depends on equipment + zone.
Ex d (flameproof): enclosure contains any internal explosion without propagating to outside atmosphere. Heavy, expensive. Standard for Zone 1 high-power equipment.
Ex e (increased safety): no sparks or hot surfaces in normal operation. Lighter than Ex d. Standard for Zone 1 low-power equipment (junction boxes, instrument cases).
Ex i (intrinsic safety): circuit power limited so no ignition possible. Standard for Zone 0/1 measurement + control equipment (sensors, instruments).
Ex tD (dust protection): enclosure prevents dust ingress to ignition source. Standard for Zone 21/22.
Ex nA (non-sparking): no arcs or sparks in normal operation. Standard for Zone 2 light equipment.
ATEX-Zertifizierungsanforderungen
ATEX 2014/34/EU is mandatory for equipment used in EU hazardous areas. IECEx is international. UL Class I/II/Div 1/2 is US equivalent.
ATEX 2014/34/EU: EU mandatory. Equipment Groups I (mining) + II (non-mining). Categories 1, 2, 3 corresponding to Zones 0/1/2 or 20/21/22. Notified Body certification required (e.g., TUV, SGS, Bureau Veritas).
IECEx: international (IEC system). IEC scheme accepted in Australia, NZ, Japan, Korea, Canada, US (alongside UL). Single IECEx certificate accepted in multiple jurisdictions.
UL Class I/II/Div 1/2: US equivalent. Class I = gas, Class II = dust. Div 1 = Zone 1/21, Div 2 = Zone 2/22. UL Listed vs UL Recognized distinction.
For B2B procurement in oil & gas: ATEX + IECEx + UL Class I/II triple certification is ideal for global operations.
Cost: ATEX certification USD 10,000-30,000 per case model. IECEx USD 8,000-25,000. UL Class I/II USD 15,000-40,000. Combined USD 25,000-80,000.
Leitfähiger Schaumstoff + antistatische Anforderungen
Foam interior + connecting equipment + non-sparking hardware are critical for Zone 1/2 cases. Standard PU foam cannot be used.
Conductive foam: surface resistivity 10^3-10^5 Ω. Dissipates static charge to ground. Standard for Zone 1/2 cases. PU foam with carbon black or metal fiber additive.
Anti-static foam (AS): surface resistivity 10^9-10^11 Ω. Prevents static buildup. Acceptable for Zone 2 cases. PU foam + chemical anti-static additive.
Standard foam (no treatment): surface resistivity >10^12 Ω. NOT acceptable for Zone 1/2. May cause static discharge and ignition.
Non-sparking hardware: brass, aluminum, or stainless steel. Avoid steel (sparks on impact). Standard for Zone 1 cases.
Material compliance: ATEX/IECEx cases typically use brass or aluminum hinges / latches / handles. Stainless steel for marine / offshore use.
B2B-Anwendungsfälle in Öl & Gas
Different oil & gas applications require different Ex protection levels. Below is the typical 2026 B2B procurement recommendation by use case.
Offshore drilling rig (Zone 1 + marine): Ex d flameproof enclosure + IP66/IP67 + MIL-STD-810G + salt fog + conductive foam. Required: ATEX + IECEx + DNV-GL offshore certification.
Refinery interior (Zone 1): Ex d or Ex e enclosure + IP65 + MIL-STD-810G + conductive foam. Required: ATEX + IECEx.
Refinery exterior + tank farm (Zone 2): Ex nA or Ex e enclosure + IP65 + anti-static foam. Required: ATEX + IECEx.
Petrochemical plant (Zone 21/22 dust): Ex tD dust protection + IP65 + anti-static foam. Required: ATEX + IECEx.
Pipeline inspection / portable equipment: Ex i intrinsic safety + IP65 + lightweight. Required: ATEX + IECEx.
Oil field service vehicle: rugged hard case with Ex e or Ex nA + MIL-STD-810G + conductive foam. Required: ATEX for EU + IECEx for global.
IP-Bewertung + Sturz + Temperatur
Oil & gas cases need robust IP rating + drop + temperature performance beyond normal industrial cases.
IP rating: IP65 minimum for Zone 1/2 (dust-tight + water jet). IP66 (powerful water jet) for offshore / marine. IP67 (immersion) for tropical / heavy rain deployment.
Drop test: MIL-STD-810G method 516.6 (26 drops) required for offshore. 8+ feet drop height typical.
Temperature: -40C to +70C typical for outdoor / arctic / desert deployment. ATEX/IECEx certified to IEC 60068-2-1 (cold) + IEC 60068-2-2 (dry heat).
Salt fog: ASTM B117 / MIL-STD-810G method 509.5 (salt fog) for offshore / marine. 48-96 hours exposure minimum.
Chemical resistance: resistant to hydrocarbons (oil, gasoline, diesel), acids (H2S, H2SO4), and bases. Standard for refinery / petrochemical use.
Kosten + Lieferzeit + MOQ
Explosion-proof cases have higher cost + longer lead time than standard hard cases due to certification + specialty materials.
Stock SKU (Ex e / Zone 2): USD 300-600. ATEX self-certification. Lead time 7-15 days.
Custom OEM (Ex d / Zone 1): USD 500-1500. ATEX + IECEx third-party certification. Lead time 60-90 days (incl certification).
Custom OEM (Ex d + offshore / DNV-GL): USD 1000-3000. ATEX + IECEx + DNV-GL + salt fog + MIL-STD-810G. Lead time 90-120 days.
MOQ: stock 10-50 cases. Custom OEM 50-200 cases. Lower MOQ for Zone 2 cases than Zone 1.
Annual certification maintenance: USD 5,000-15,000/year for audit + surveillance. Audit by Notified Body required for ongoing ATEX certification.
KeXinMaterials Explosionsschutz-Fähigkeit
KeXinMaterials offers ATEX + IECEx + UL Class I/II certified explosion-proof cases. EXW Shenzhen / FOB Shenzhen / FOB Ningbo only.
Stock SKUs: Ex e Zone 2 + IP65 + conductive foam. ATEX self-certification. USD 300-600.
Custom OEM: Ex d Zone 1 + IP66/IP67 + conductive foam + MIL-STD-810G + salt fog. ATEX + IECEx third-party certified. USD 500-1500.
Offshore package: Ex d Zone 1 + IP66 + DNV-GL + MIL-STD-810G + salt fog + conductive foam. ATEX + IECEx + DNV-GL + UL. USD 1000-3000.
Certifications: ISO 9001:2015 + ISO 14001:2015 + ATEX 2014/34/EU + IECEx + UL Class I/II. Notified Body: TUV Rheinland.
Test partners: TUV Rheinland (ATEX), SGS (IECEx), UL LLC (UL), Bureau Veritas (DNV-GL). All certified test reports valid globally.
Wesentliche Erkenntnisse
- ATEX Zone 1/2 + IECEx + UL Class I/II Dreifachzertifizierung für globales Öl & Gas
- Ex d (Explosionsschutz) für Zone 1 Hochleistung; Ex i (Eigensicherheit) für Zone 0/1 Messung
- Leitfähiger Schaumstoff 10^3-10^5 Ω obligatorisch für Zone 1/2; antistatisch für Zone 2
- Funkfreie Hardware: Messing/Aluminium/Edelstahl; niemals Standardstahl
- Kosten: USD 300-3000/Koffer; Lieferzeit 7-120 Tage; MOQ 10-200 Koffer
FAQ
Was ist der Unterschied zwischen ATEX Zone 1 und Zone 2?
Zone 1 (Gas): explosive Gasatmosphäre wahrscheinlich im Normalbetrieb. Hohes Risiko. Erfordert Ex d / Ex e / Ex i zertifizierte Geräte. Zone 2 (Gas): explosive Gasatmosphäre im Normalbetrieb nicht wahrscheinlich. Geringeres Risiko. Erfordert Ex n oder gleichwertig.
Wird IECEx global akzeptiert?
Ja. IECEx ist das internationale Zertifizierungssystem, akzeptiert in 30+ Ländern einschließlich Australien, NZ, Japan, Korea, Kanada, USA, EU, Brasilien, Indien, China.
Welcher Schaumstoff ist für Zone 1 Explosionsschutzkoffer erforderlich?
Leitfähiger Schaumstoff mit Oberflächenwiderstand 10^3-10^5 Ω. PU-Schaumstoff + Ruß- oder Metallfaseradditiv. Standardschaumstoff (>10^12 Ω) NICHT akzeptabel.
Was kostet die ATEX-Zertifizierung für einen Hartschalenkoffer?
ATEX-Zertifizierungskosten: USD 10.000-30.000 pro Koffermodell. Selbstzertifizierung (Herstellererklärung) für Zone 2 Kategorien ist günstiger (USD 3.000-8.000). Drittpartei-Benannte-Stelle-Zertifizierung für Zone 1 Kategorien ist teurer.
Unterscheiden sich Explosionsschutzkoffer von IP67-Koffern?
Ja. IP67 ist Wassereindringschutz (Eintauchen 1m 30min). Explosionsschutz (Ex d/Ex e/Ex i) ist Zündverhinderung in explosiver Atmosphäre. Sie sind komplementär, nicht Substitute.
Kann ein Standard-Hartschalenkoffer in Zone 2 mit Modifikationen verwendet werden?
Standard-Hartschalenkoffer können nicht in Zone 2 verwendet werden, auch nicht mit Modifikationen. Zone 2 erfordert Ex nA oder Ex e Zertifizierung durch Herstellererklärung oder Drittpartei.