Welcome to System Gasteknik Leif Dahl AB

SGT AB is a consulting company owned and operated by Leif Dahl. The company is engaged in the energy industry. Leif has a long experience of working with different burners and combustion systems in the energy sector. Since 1971, he has worked with combustion systems, and since 1982 he has worked in the field of gas, as a surveyor. Since 1986, Leif has worked as both a surveyor and system reviewer.

LLeif partakes in “Energigas Sverige” a working group that constitutes the norms for energy and gas or “Energigasnormen EGN” in Sweden since 1998, he is part of the CEN (European Committee for Standardization) / TC 186 and the working groups WG1, WG2, WG3, WG4 and WG5.
He is also part of the ISO (International Organization for Standardization) / TC 244 and the working groups WG2 and WG5.
In both CEN and ISO are as SIS (Swedish Standards Institute) expert in combustion systems for industrial installations and their safety.

SGT AB was founded in 1989; the business’ focus lies in the areas of inspection, examination systems, problem solving and design, as well as various projects within the energy industry.

These are examples of what we work with in those areas:

• Risk assessments according to EN ISO 13849-1, EN 62061 and EN 50156-1
• System review under "EGN"
• Inspections of gas installations
• Inspections of other kinds of energy plants
• Commissioning control
• Operating tests
• Conversion Studies
• Assembling inspection
• Adjustments
• Design, construction and installation of gas installations both industry and public administration.

In the above mentioned we adhere to the laws, regulations, and norms that exist in Sweden and the EU.