Elevated Flares
Variable Nozzle Sonic Flares (FlexMach Series)
General
- Designed to achieve sonic exit velocity through the full range of flow
- Spring actuated, adjustable orifice exit nozzles to maintain sonic velocity
- Provides smokeless combustion through the full range of flow conditions
- High pressure waste gas creates a turbulent mixing zone for greater combustion efficiency
- Multi-arm design to maximize atmospheric air entry into the combustion zone
Selection Criteria / Advantages
- Maintains sonic velocity throughout the entire flow range
- Smokeless turndown from purge to 100% of design flow rate
- Smokeless combustion with up to 25% by mass of entrained liquid hydrocarbons
- Lower radiant heat than sub-sonic flares
- Stable and reliable combustion
- Lowest purge gas flow rate of any flare tip type
- Upstream onshore oil & gas production
- Upstream offshore oil & gas production
- Midstream oil & gas
- Petroleum refining
- Chemical processing industry (CPI)
- Nozzles designed to cross-light from a single point ignition source
- Spring actuated exit nozzle
- Fail open nozzle design in case of failure
- Designed to accept a wide range of waste gas pressures
- High temperature rated materials in the heat affected area
- Variable exit nozzles act as velocity type purge seals to prevent flashback and minimize operating expense
Dimensions:
Standard Length: 10’-0” [3048 mm]
Diameter: 4” – 84” [102 – 2134 mm]
Standard Materials:
Heat affected zone: stainless or high nickel alloy (as per application)
Non-heat affected zone: carbon steel