The Elmac Technologies® patented Flame Arrester Breather Valve (FAB Valve™) integrates a RE-Flow™ Flame Arrester with a Pressure & Vacuum Relief Valve (PVRV).
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The increasing demand for renewable energy has intensified the need for products to protect people, process equipment and the environment. Elmac recognises this need and has developed a unique range of safety products to protect commercial, industrial and on-farm Anaerobic Digestion Plants.
The Elmac Technologies® Cowhorn Arrangement attaches pairs of Flame Arresters and Pressure/Vacuum Relief Valves to a 3-way valve, allowing the operator to switch between sets when operational or maintenance needs require.
Elmac’s world-leading Flame Arresters protect the Anaerobic Digester against fire and explosion whilst allowing gases/vapours to flow under normal operating conditions. Simultaneously, the Pressure/Vacuum Relief Valves protect the Digester against overpressure and limits product loss.
The practical duty/standby arrangement of the Cowhorn allows continuous operation with zero downtime and minimum disruption to Biogas production.
The Cowhorn can also be combined with the Elmac Technologies® Foaming Relief Vent to relieve excessive pressure during a Digester foaming event.
Elmac’s Cowhorn Arrangement has been type-tested to EN ISO 16852 and approved according to ATEX Directive 2014/34/EU.
| Item | Options |
|---|---|
| Sizes (DN) | 2” to 12” (DN50 to DN300) |
| Process Connection | ANSI 150# PN10/PN16 Special (on request) |
| Material | Stainless Steel (standard) Other materials available on request |
| Ancillary Equipment | Proximity Switches Pipework Pressure Transducers Temperature Sensors (on request) |
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.
This range offers protection from the initial phases of an explosion, usually caused by the ignition of a flammable gas mixture within a pipe.
