The flame arresters extinguish the advance or retreat of a flame in pipes where there is an explosive atmosphere and a possible point of ignition. A lightning bolt, an electric arc, a spark, a source of heat can be triggers of a flash in facilities where there is an explosive atmosphere. Hence, the installation of flame arresters are applicable in multiple industries such as: oil storage parks, flammable tanks according to APQ or API2000, flammable venting, gas boiler blowers, in torches to protect the flashback, in digesters and biogas plants.
Our flame arresters comply with ISO 16852 standards, as set out in the ATEX Directive 94/9 / CE; as well as under BS7244, NEC, UL standards upon request. There are different types of flame arresters depending on the gas and the type of explosion. To ensure the integrity of the equipment to be protected, it is vital to correctly select the type of flame arrester. For your correct choice you must know:
The gas group of the mixture IIA, IIB or IIC
The origin of the possible ignition point and the distance to the flame arrester
Direction of the advance or the recoil of the flame
END OF LINE DEFLAGRANTION FLAME ARRESTERS
They protect the tank or the pipe from the possible recoil of the flame coming from the outside in case of a recoil or an aspiration. They are installed in the vents or at the end of the pipes.
They can be of prolonged combustion, flames that do not spread to the interior of the pipe, being able to withstand a 2-hour exposure to the flame or of brief combustion when the flame propagates into the pipe or tank
IN LINE DEFLAGRANTION FLAME ARRESTERS
The flame arresters capable of extinguishing a flame front confined in a gallery, which moves at a lower speed than sound, belong to this category. Therefore, this equipment must withstand significant mechanical and thermal energy. The maximum distance allowed between the ignition point and the extinguisher is 50 times the diameter of the pipe, and 30 times for the IIC (hydrogen) groups.
IN LINE DETONATION FLAME ARRESTERS
When a deflagration is propagated through a pipe, its pressure and temperature increase until it reaches the autoignition temperature, at which time in addition to the advance of the flame a detonation occurs. They belong to this category the flame arresters capable of extinguishing a flame front, confined in a gallery, which moves at a speed greater than that of sound, thus having the character of a detonation. The mechanical and thermal energies in this case are more critical, and must withstand high solicitations.