Bieler+Lang : Gasübersicht

Methane (CH₄)

Combustible gas with high explosion potential

Methane (CH₄) is the simplest alkane and is one of the world’s most important energy sources. It is the main component of natural gas, an important component of biogas and an essential raw material in the chemical industry. Despite its many uses, methane is a highly flammable gas that can quickly become a significant source of danger in the event of a leak.

Risk of explosion and fire due to methane

Methane is colorless and odorless. The well-known “gas odor” is caused by added odorants. In combination with air, methane forms highly flammable and explosive gas mixtures. Even low concentrations can trigger violent explosions in the presence of an ignition source.

Safety-relevant properties of methane:

  • Explosion limit range: approx. 4.4 – 17 % by volume in air
  • Flash point: not defined (gas)
  • Ignition temperature: approx. 595 °C
  • Gas density: lighter than air, rises upwards

Methane spreads quickly and inconspicuously in the environment. An explosive gas-air mixture can form, particularly in poorly ventilated rooms. Leaks often occur unnoticed in pipes, valves or compression systems.

Why gas detectors for methane are indispensable

As methane is colorless and odorless, a leak often remains undetected without measurement technology. Dangerous concentrations are only noticed when the danger is already acute. Reliable gas warning technology is therefore essential.

Our modern gas detection systems for methane offer:

  • Early detection far below the lower explosion limit (LEL)
  • Reliable monitoring even in potentially explosive atmospheres (ATEX-certified)
  • Instant alerting with audible, visual and optional system signals
  • Integration in shutdown, ventilation or emergency control systems

Typical areas of application for methane detection

  • Natural gas grids, biogas plants and sewage treatment plants
  • Combined heat and power plants (CHP)
  • Gas distribution stations and compressor stations
  • Wastewater technology and landfill gas monitoring
  • Chemical and process industry
  • Storage and maintenance areas for gas systems

The use of gas warning systems in these areas is not only relevant to safety, but is often also required by law – e.g. in accordance with ATEX, TRBS, DVGW or BetrSichV.

Conclusion: Control methane safely – with precise gas warning technology

Methane is a valuable source of energy, but can become a life-threatening danger if it leaks. In industrial and municipal applications, reliable protection against explosive methane mixtures using modern gas warning systems is essential. Our sensors and warning systems ensure effective protection for employees, systems and the environment – in compliance with standards, safe and ready for use.

The following gas sensors and systems from Bieler+Lang can detect methane

We will be happy to advise you on the selection of suitable detectors and the corresponding evaluation devices for your individual application.