Protego In-Line Deflagration Flame Arrester: - Eccentric design prevents condensate build up. - Special design for elevated operating temperatures and pressures available. - Modular design enables each individual FLAMEFILTER® to be replaced. - Service friendly: Flame FIlter can be cleaned easily. - Eccentric design eases installation close to floors and walls bi-directional flame transmission proof design. - Protects against deflagrations for all explosion groups IIA, IIB3 and IIC (NEC groups D, C and B). - Modular design reduces spare parts cost. The devices are symmetrical and offer bi-directional flame transmission protection. The arrester essentially consists of two housing parts and a PROTEGO® flame arrester unit in the center. The PROTEGO® flame arrester unit is modular and consists of several Flame Filters discs and spacers firmly held in a Flame Filter casing. The number of Flame Filter and their gap size depends on the device ‘s intended use.