Orbital Gas Systems pioneered the transition of UK gas networks, from national odorisation to regional. This enabled exporting unodorised natural gas to Europe, achieved by installing 126 odorisation plants at each gas network offtake throughout the UK
We provide systems that enable odorant injection for a range of gases including biomethane/renewable natural gas (RNG), liquified petroleum gas (LPG), hydrogen, and CO₂.
Odorisation is the process of adding THT or Mercaptan blends (such as TBM, DMS, or other types of odorants), to gas or liquid to ensure it is readily detectable to the human nose, which is critical for safe gas consumption.
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We’ve odorised hundreds of sites since the 1990s, and provide ongoing service and maintenance to numerous sites, across the UK.

Helix Business Park,
Newbridge Road,
Ellesmere Port, CH65 4LR
Bilfinger nZero, now part of Bilfinger UK Limited