ATEX Explosion Proof API 610 High Speed Centrifugal Pump Zone 1 Hazardous Area
ATEX Explosion Proof Pump
,API 610 High Speed Centrifugal
,Hazardous Area Process Pump
Product Description
Our journey into ATEX-certified rotating equipment manufacturing began in 2014 when a major European refinery operator challenged us to develop an API 610 OH6 pump package with full ATEX Directive 2014/34/EU compliance for a Zone 1 classified hydroprocessing unit. Since delivering that first certified unit—which has now accumulated over 40,000 operating hours without a single safety-related incident—we have expanded our hazardous area pump portfolio through systematic investment in ATEX competency training for our engineering, manufacturing, and quality assurance teams.
Our current ATEX-certified pump program is supported by a dedicated hazardous area compliance engineer holding CompEx Foundation certification, a documented ignition hazard assessment methodology, and an established relationship with an EU-notified body (SGS Baseefa) for conformity assessment and ongoing surveillance audits.
The explosion proof pump certification process follows a rigorous technical file compilation procedure that we have refined through 8 years of continuous notified body interaction. Each pump variant undergoes a formal ignition hazard assessment per EN 80079-36 evaluating 13 potential ignition sources identified in the standard—including hot surfaces, mechanically generated sparks, static electricity, stray electric currents, and adiabatic compression—under both normal operation and reasonably foreseeable malfunction conditions.
| Parameter | Specification | Certification Reference |
|---|---|---|
| ATEX Marking (Pump Assembly) | II 2G Ex h IIB T3 Gb | EU-Type Examination Certificate |
| IECEx Certification | Ex h IIB T3 Gb | IECEx Certificate of Conformity |
| Applicable Zones | Zone 1 (Category 2G) and Zone 2 (Category 3G) | Per ATEX Directive Annex I |
| Temperature Class | T3 (200°C maximum surface temperature) | Verified by temperature rise testing |
| Gas Group | IIB (Representative gas: ethylene) | EN 80079-36 Clause 5.2 |
| Pump Design Standard | API 610 12th Ed., OH6 Category | Design per API 610 Annex A |
| Maximum Flow Rate | 85 m³/h (375 GPM) | Performance test on record |
| Maximum Differential Head | 914 m (3,000 ft) | Deadweight-tested transmitters |
| Motor Certification | Ex d IIB T3 Gb (Flameproof Enclosure) | Separate motor ATEX certificate |
| Coupling | ATEX-Certified, Anti-Static, Spark-Free | Manufacturer's ATEX Declaration |
| NACE Sour Service Option | MR0175/ISO 15156 Compliant | Material certification per NACE |
- Systematic Ignition Hazard Assessment Process: Our documented ignition hazard assessment methodology—developed in consultation with our notified body and refined through application on over 60 ATEX pump projects—systematically evaluates each potential ignition source using a structured checklist aligned with EN 80079-36 Table 2. For hot surface hazards, we perform a worst-case temperature rise analysis considering maximum process fluid temperature, bearing friction heat generation under degraded lubrication, and mechanical seal face heat generation under dry running conditions.
- Component-Level ATEX Compliance Management: Based on our practical experience managing ATEX supply chains, every component incorporated into the explosion proof pump assembly—motor, coupling, instruments, cable glands, seal support system components—is sourced with its own valid ATEX or IECEx certificate. Our quality assurance team maintains a controlled register of component certificates with expiration date tracking, ensuring that production units always incorporate currently certified components.
- ATEX-Specific Manufacturing Controls: Our production procedures for ATEX-certified pumps include specific controls that we developed based on lessons learned from notified body audit findings: critical flamepath dimensions on bearing housings and seal chambers are measured and recorded on dimensional inspection reports; all non-metallic components are verified to have surface resistivity below 1 GΩ to prevent static charge accumulation; and the complete pump assembly undergoes a final ATEX compliance verification checklist signed by our hazardous area compliance engineer.
- Lifetime ATEX Compliance Support: Recognizing that ATEX certification validity extends throughout the equipment's operational life, we provide a comprehensive user manual with specific maintenance procedures, approved spare parts listings, and inspection intervals required to maintain the validity of the ATEX certification. Our service engineers are trained in ATEX maintenance requirements, and we offer post-overhaul re-certification inspection services.