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According to API 2000 code, BS7244 and EN 12874. The HFA is designed, manufactured and tested by HITEK
The accidental ignition of flammable gases or vapours from vent pipes of storage tank or process vessel presents a constant threat to plant and personnel. The use of the flame arrestors is one of the essential measures taken to avoid or minimize the possible consequences. Their application is widespread, ranging from the protection of small solvent tanks to the safety of large and complex process plant. The oil, gas, petroleum, chemical and petrochemical industries are major users.
A flame arrester is a static device which stops a flame entering into the storage tank or process vessel containing a flammable gas or vapour. An end -of-line type flame arrestor is fitted at the extreme downstream end of a pipeline.
The arrester consists of a flame quenching element contained within a housing which incorporates thread or flange connections for fitting to pipework. The element is often of greater diameter than the pipework in order to compensate for pressure drop and therefore the housing is enlarged accordingly.
| Type | Description | Best Use |
|---|---|---|
| End-of-Line Deflagration Arrester | Mounted at vent outlets to stop subsonic flames | Tank vents, process vessels |
| In-Line Deflagration Arrester | Installed in piping to prevent flame travel | Hydrocarbon vapor pipelines |
| In-Line Detonation Arrester | Designed for supersonic flame fronts with shock waves | Long pipelines, high-energy fuel systems |
| Vent-to-Atmosphere Arrester | Prevents external fire from entering tanks | Fuel storage tanks |
| Specification | Typical Range/Values |
|---|---|
| Size (DN) | DN25 – DN600 (1″ – 24″) |
| Working Pressure | Up to 1.6 MPa (16 bar) |
| Working Temperature | -20°C to 300°C (special designs up to 480°C) |
| Body Material | Carbon steel, stainless steel (304/316), aluminum, cast iron |
| Element/Matrix Material | Stainless steel crimped ribbon, wire mesh, perforated sheet |
| Connection Type | Flanged (DIN, ANSI, JIS), threaded (NPT/BSP), welded |
| Standards/Certifications | API 2000, ISO 16852, ATEX, EN 12874 |
| Installation Type | End-of-line, in-line, detonation-proof |
| Operation | Passive (no moving parts) |
| Maintenance | Periodic cleaning of flame element to prevent clogging |
