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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.

2019 - Largest Research and Development Center of its kind

2018 - Market launch of PROTEGO® ExU, the first controlled in-line deflagration flame arrester

2017 - Market launch of the world’s highest flow capacity pilot-operated valves

2016 - World’s first in-line liquid detonation flame arrester for higher temperatures

2015 - World’s first in-line detonation flame arrester for H2/O2 mixtures for higher pressure

2013 - World's largest in line deflagration arrester approved for Explosion group IIA (NEC group D) – DN 1000 (40”) flange connection

2012 - World’s largest in-line detonation arrester approved for Explosion group IIA (NEC group D) – DN 1000 (40”) flange connection

2008 - World’s first in line detonation arrester type tested and approved for carbon disulphide

2006 - World’s first endurance burning rated arrester for hydrogen

2005 - Developed first static type, endurance burning rated flame arrester both ethanol and ethanol based fuels

2000 - Manufactures the broadest range of type approved flame arresters globally

1998 - Receives ATEX certification for the manufacture of flame arresters.

1977 - Develops its own research/testing center for flame arresters, up to 12” in size

1955 - Develops the world’s first tank vent with integrated flame arrester, rated for endurance burning

1954 - Dr. Robert Leinemann establishes Braunschweiger Flammenfilter

1929 - Dr. Robert Leinemann patents the world’s first detonation arrester