Description
The 330 ENP is a ribbon coil in-line deflagration flame arrester preventing fire propagation into pipelines. Certified under ATEX Directive 2014/34/EU and EN ISO 16852:2016, it suits all ATEX zones (0, 1, and 2). Compatible with gases having MESG > 0.65 mm. Stainless steel variant available for aggressive solvent service.
Features
- Ribbon coil deflagration element — stainless steel with thread ring support
- Brass body and thread ring (standard); full stainless steel construction available (SS model)
- Male BSPP protected side with male inlet and female outlet threads
- Stage I vapor recovery compliant
- Max distance from potential ignition source: 50 pipe diameters
- Max operational pressure (relative): 0.1 bar
- Max operational temperature: 60°C
- Burning rating: BC=b, tBT = 1 min
- Available in 1″”, 1-1/2″”, 2″”, 3″”, and 4″” sizes
Applications
- Hydrocarbon and chemical pipelines
- Stage I vapor recovery systems
- Aggressive solvent, acid, or base service (SS model)
- ATEX Zone 0, 1, and 2 installations
- Gases and vapors with MESG > 0.65 mm including: ammonia, methane, propane, butane, pentane, hexane, heptane, benzene, xylene, cyclohexane, acetone, methanol, ethanol, butanol, ethyl acetate, and others
Certifications & Approvals
- ATEX Directive: 2014/34/EU
- Standard: EN ISO 16852:2016
- UE-Type Examination Certificate: EPT 18 ATEX 3053 X
- Explosion Group: IIB3 (tested with ethylene; compatible with all gases MESG > 0.65 mm)
- ATEX Zones: 0, 1, and 2






