Innovations
Since 1954, PROTEGO® has been an industry pioneer and leading manufacturer of Flame Arresters Flame arrester Device fitted to the opening of an enclosure, or to the connecting pipe work of a system of enclosures, and whose intended function is to allow flow but prevent the transmission of a flame. , Breather Valves Pressure and vacuum relief valve A pressure and vacuum relief valve is a pressure equalization valve for impermissible pressure and vacuum in a closed system. , and Tank Equipment Equipment Machines, appliances, fixed or mobile devices, control parts and accessories, and warning and prevention systems, whether separate or combined, intended for the generation, transfer, storage, measurement, control, and conversion of energy, and for the processing of materials, which have their own potential source of ignition and may cause an explosion. .
The journey of innovation and excellence is showcased through significant milestones, highlighting continuous advancements and establishing PROTEGO® as a technology leader in the industry.
2025
First approval
of a 2" Detonation Detonation Explosion propagating at supersonic velocity and characterized by a shock wave. Flame Arrester for any hydrogen/oxygen mixtures and increased pressure Pressure (gauge pressure) Pressure for which the value is equal to the algebraic difference between the absolute pressure and the atmospheric pressure.
2025
First approval
of an acetylene Flame Arrester for the nominal size Nominal size The nominal size is an alphanumeric designation of size for components in a piping system, used for reference purposes, comprising the letters DN followed by a dimensionless integer that is indirectly related to the physical size of the bore or outside diameter of the connections, expessed in millimeters. DN 500.
2024
Measurement of the tank breathing capacity at a real storage tank
Validation and improvement of design models based on full-scale measurement data.
2023
World's largest Deflagration Flame Arrester
approved for explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. group IIA for pipelines with a size of DN 1000 for an operating temperature Operating temperature Temperature reached when the equipment is operating under design conditions. of 200°C
2022
Commissioning of the MESG Laboratory
2021
Start-up of the flow test rig
for high flows
2020
Opening of the PROTEGO® Technology Center
2019
Market launch of In-Tank Valves
PROTEGO® ITV
2018
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 Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. group IIA (NEC group D) – DN 1000 (40”) flange connection
2012
World’s largest in-line detonation arrester
approved for explosion Explosion Abrupt oxidation or decomposition reaction producing an increase in temperature, pressure, or in both simultaneously. group IIB1 – DN 1000 (40”) flange connection
2008
Approval of hydrogen deflagration and detonation arresters
2006
World’s first in-line detonation arrester type
tested and approved for carbon disulphide
2005
Development of first static, endurance burning flame arrester
for ethanol and ethanol based fuels
2004
Development of the first detonation arresters
for acetylene and ethylene oxide
2003
Development of first static type, endurance burning rated flame arrester
2002
Development of flame arresters
for elevated pressures and temperatures
2000
Manufacturing the broadest range
of type approved flame arresters globally
1998
Introduction of ATEX quality assurance for flame arresters
Our flow test facility was renewed and has been technologically improved ever since
1997
Development of low pressure valves
with full lift Lift Lift is the actual travel of the valve pallet from the main valve out of the closed position. type pallets (PROTEGO® 10% Technology)
1995
Enhancement of the effectiveness of detonation arresters
through the pre-ignition effect and shock-wave guide tube
1994
The quality management system is certified under ISO 9001
1991
Development of integrated flame arresters
for blowers and vacuum Vacuum Vacuum is the pressure in an enclosed space that is lower than the ambient pressure. pumps
1982
First approval for hydraulic flame arresters
1978
Approval for deflagration flame arrester
with temperature monitoring
1977
Development of our own research/testing center
or flame arresters, up to 12” in size
1975
Development of pilot-operated valves, bottom outlet valves and safety vent valves
1967
Approval of hydrogen deflagration and detonation arresters
1965
Our first flow measuring system was put into operation
1964
The world’s first endurance burn proof diaphragm valve was put on the market
Development and patenting of the first detonation arrester Detonation flame arrester Flame arrester designed to prevent the transmission of a detonation. for liquid products
1959
First construction phase of Braunschweiger Flammenfilter in Bienrode, Germany
1955
The world’s first tank vent with integrated Flame Arrester
rated for endurance burning Endurance burning Stabilized burning for an unlimited time. is developed
1954
Robert Leinemann establishes Braunschweiger Flammenfilter
Development of Tank Equipment, e.g. Floating Suction Units and Floating Roof Drainage Systems
1929
The world’s first detonation Flame Arrester
developed by Robert Leinemann is patented
Contact R&D Department
