The Elmac Technologies® patented Cowhorn Arrangement attaches pairs of Flame Arresters & Pressure/Vacuum Relief Valves to a 3-way valve.
The Elmac Technologies® Series of Tank Blanketing Valves offer complete protection to the storage tank product against contamination and to the storage tank itself against rupture or damage.
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Tank Blanketing Valve
The operating principle of the Tank Blanketing Valve is to maintain a positive pressure within an enclosed storage tank by introducing a gas such as nitrogen into the vapour space above the product at a required pressure.
This ‘blanket’ prevents the stored product from vaporising into the atmosphere, prevents contamination to the stored product and also helps to reduce product combustibility by eliminating oxygen-rich air.
The valve also offers primary vacuum relief for the storage tank, acting as a pressure regulator. It does this by supplying gas to the vapour space when pressure decreases within the tank to the valve’s set point.
Once the gas blanket is re-established to the required pressure the valve closes.
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).
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.
