Protection of Dry-running vacuum Pumps with Flame Arresters Protecting dry-running vacuum pumps with DR/ES and DR/ES-T flame arresters at the inlet and at the outlet, respectively, which are tested and certified together with the vacuum pump. In-Line Detonation Flame Arrester for stable detonations and deflagrations in right angle design with shock absorber, unidirectional. * Minimum number of FLAMEFILTER® discs due to the effective shock absorber * Quick removal and installation of the complete PROTEGO® flame arrester unit and FLAMEFILTER® discs in the cage * Due to modular design the FLAMEFILTER® discs can be individually replaced * The right angle design saves pipe elbows * Extended application range for higher operating temperatures and pressures * Minimum pressure loss and hence low operating and lifecycle cost * Cost efficient spare parts