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Company history

  • 1681

    Denis Papin develops the first safety valve for a "pressure cooker".

    1681 1681
  • 1818

    LESER is founded as a braziery in Hamburg-Neustadt by Georg Wittmann.

    1818
  • 1833

    LESER purchases its first property with a workshop in Hamburg.

    1833
  • 1856

    John Ramsbottom invents a spring-loaded flanged safety valve.

    1856
  • 1866

    The "Boiler Audit Association" (later TÜV-technical inspection association) is founded in Germany.

    1866
  • 1880

    The "American Society of Mechanical Engineers“ (ASME) is founded in the USA.

    1880
  • 1884

    LESER offers a complete product line of steam fitttings - including safety valves.

    1884
  • 1914

    The company expands and purchases a lot on Wendenstrasse.

    1914
  • 1919

    The "National Board of Boiler and Pressure Vessel Inspectors“ (NB) is founded in the USA.

    1919
  • 1924

    The ASME Code for unfired pressure vessels is implemented.

    1924
  • 1943

    Production is moved to Hohenwestedt.

    1943
  • 1944

    André Ramseyer AG is founded in Flamatt, Switzerland, LESER holds a share.

    1944
  • 1948

    Buildings on Wendenstrasse are rebuilt.

    1948
  • 1957

    The first LESER test stand for safety valves comes into being in Hamburg.

    1957
  • 1959

    The first component testing is conducted and successfully completed.

    1959
  • 1968

    In cooperation with a waste incineration plant, LESER builds its first test stand for steam in Hamburg-Neuhof.

    1968 1968
  • 1970

    LESER realigns its production and specializes in safety valves from here on.

    1970
  • 1980

    LESER becomes the market leader for safety valves in Germany and Europe.

    1980
  • 1987

    FAINGER-LESER is founded as a joint venture in Mumbai, India.

    1987
  • 1990

    LESER receives its first ASME certification and can now present itself worldwide as a safety valve manufacturer.

    1990
  • 1991

    The LESER-developed layout program VALVESTAR® is available to customers and users for the first time.

    1991
  • 1997

    The Pressure Equipment Directive 97/23/EG is published in order to standardize differing European standards and regulations for pressure vessels.

    1997
  • 1998

    Protego LESER do Brasil is founded in Brazil.

    1998
  • 2001

    LESER introduces the API product group as an important step for global representation.

    2001
  • 2001

    LESER Polska is founded in Posen, Poland.

    2001
  • 2003

    LESER LLC is founded in Charlotte, NC, USA.

    2003
  • 2004

    LESER S.A.R.L. is founded in France.

    2004
  • 2008

    Upgrade and expansion of production in Hohenwestedt.

    2008
  • 2008

    LESER Middle East is founded as an office in Bahrain.

    2008
  • 2010

    LESER opens a new market by introducing its pilot operated safety valve.

    2010
  • 2010

    LESER LLP is founded in Singapore.

    2010
  • 2013

    LESER - The Safety Valve (Tianjin) Ltd., China is founded with location in Tianjin. Regional offices in Beijing, Shanghai and Shenzhen ensure a broad regional coverage.

    2013
  • Today

    LESER, with its nine subsidiaries and numerous sales partners, is now represented in more than 80 countries.

    Weltkarte
earlier
  • 1681
  • 1818
  • 1833
  • 1856
  • 1866
  • 1880
  • 1884
  • 1914
  • 1919
  • 1924
  • 1943
  • 1944
  • 1948
  • 1957
  • 1959
  • 1968
  • 1970
  • 1980
  • 1987
  • 1990
  • 1991
  • 1997
  • 1998
  • 2001
  • 2001
  • 2003
  • 2004
  • 2008
  • 2008
  • 2010
  • 2010
  • 2013
  • Today
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Contacts in your country

LESER GmbH & Co. KG

LESER GmbH & Co. KG

Telephone: +49 40 25165 100

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