The Elmac Technologies® patented Cowhorn Arrangement attaches pairs of Flame Arresters & Pressure/Vacuum Relief Valves to a 3-way valve.
Download Datasheet
Scroll Down
Free Vents
Elmac Technologies FV Series Free Vents with weatherhood and mesh screen are designed to be installed on the exit vent from a vessel, to provide protection against excessive pressure and vacuum. Free Vents are supplied as complete units ready for direct installation.
Pressure levels inside storage tanks change due to filling and emptying processes or fluctuations in temperatures. Without a relief vent the vessel would either explode or implode under excessive pressure/vacuum. Atmospheric Free Vents provide the required relief and avoid damage to the tank and surroundings. Atmospheric vents will not stop any external flames propagating into the tank. An appropriate flame arrester should be used for this purpose.
Elmac have been manufacturing protection equipment since 1948, and bring enhanced levels of flame and explosion protection to a diverse range of applications. Elmac offers considerable technical leadership and using test facilities along with CFD capabilities, employs research teams renowned for developing solutions for the most challenging of industrial applications.
Elmac’s products comply with all relevant industry standards including ATEX & ISO 16852 (Flame Arresters); API 2000/ISO 28300 & NFPA30 (Venting & Storage of Combustible Vapours & Liquids) and possible BLEVE (fire engulfment) incidents. In addition, Elmac is accredited to the following international standards: ISO 9001 (Total Quality Management), ISO 14001 (Environmental Management) and OHSAS 18001 (Occupational Health & Safety).
| Description | Materials & Options |
|---|---|
| Size Range | 2", 3", 4", 5", 6", 8", 10", 12" |
| Process Connections | ANSI 150# (Standard), PN10/ PN16, Special |
| Materials | Carbon steel, Stainless Steel, Specials |
The Elmac Technologies® patented Cowhorn Arrangement attaches pairs of Flame Arresters & Pressure/Vacuum Relief Valves to a 3-way valve.
The Elmac Technologies® patented Flame Arrester Breather Valve (FAB Valve™) integrates a RE-Flow™ Flame Arrester with a Pressure & Vacuum Relief Valve (PVRV).
This range offers protection against atmospheric explosions, often entering the process via the ignition of a flammable vapour cloud.
This detonation arrester range offers ultimate protection from worst-case scenario explosions. These explosions result from the acceleration of a deflagration flame front and the transition of a pressure wave to a shock wave within a pipe.
