PROTEGO® devices are designed with process safety as the primary objective. Our standard and custom-made solutions comply with current national and international guidelines.
A Family Business with a tradition for innovation, becomes the global market leader.
Dr. Robert Leinemann patents the world’s first detonation arrester.
Robert Leinemann establishes Braunschweiger Flammenfilter.
Develops the world’s first tank vent with integrated flame arrester, rated for endurance burning.
Develops its own research/testing center for flame arresters, up to 12” in size.
Receives ATEX certification for the manufacture of flame arresters.
Manufactures the broadest range of type approved flame arresters globally.
Developed first static type, endurance burning rated flame arrester both ethanol and ethanol based fuels.
World’s first endurance burning rated arrester for hydrogen.
World’s first in line detonation arrester type tested and approved for carbon disulphide.
World’s largest in-line detonation arrester approved for Explosion group IIA (NEC group D) – DN 1000 (40”) flange connection!
World's largest in line deflagration arrester approved for Explosion group IIA (NEC group D) – DN 1000 (40”) flange connection!
World’s first in-line detonation flame arrester for H2/O2 mixtures for higher pressure
World’s first in-line liquid detonation flame arrester for higher temperatures
Market launch of the world’s highest flow capacity pilot operated valves
Market launch of PROTEGO® Ex-U, the first controlled in-line deflagration flame arrester