Description
The 425 ENP is a flanged 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. PTFE-coated variant available on request for special fuels.
Features
- Flanged connection design
- Ribbon coil deflagration element — stainless steel
- Aluminium body (standard); aluminium + PTFE coating available
- Brass thread ring (standard); brass + PTFE coating available
- Bidirectional or support side protected side configurations
- 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 pipe sizes: 2″”, 3″”, 4″”
Applications
- Hydrocarbon and chemical pipelines
- Stage I vapor recovery systems
- 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
