Eccentric rotary plug valves, series FC and FG

Designed to provide the best control accuracy and wide rangeability

Neles™ Finetrol™ eccentric rotary plug valve is designed for liquid, gas, vapor and slurry control in general and demanding applications. Neles Finetrol is certified to SIL 3. Excellent control performance and capability to handle impure fluids makes Finetrol well suited in refining and petrochemical industry applications.

Excellent reliability with low maintenance cost

Fire safe, fugitive emission and SIL certification together with anti-blowout shaft design meet the most stringent HSE requirements

Heavy-duty design withstands impurities and thermal cycles and ensures extensive life time

Live loaded rotary packing ensures excellent control for fugitive emissions with long endurance


  • Heavy duty anti-blowout shaft. 
  • Rotating, dynamic Q-trim™ attenuator for anti-cavitation and noise abatement. Q-trim attenuator is a self flushing design and capable to handle dirty fluids also.
  • Low emissions according to ISO 15848 with wide temperature range and the longest endurance class.
  • Certified safety performance, capable to SIL 3 level according to IEC 61508.
  • Fire safe certification according to API 607, 6th edition.
  • Unique balanced plug design reduces dynamic torque and allows accurate, stable control for the full 90 degrees rotation.
  • Versatile mounting orientations.


  • Refining
  • Petrochemicals
  • Chemicals
  • Natural gas
  • Fertilizers
  • Power


Body construction Flanged
Body pressure rating PN 10 - 100 / ASME Class 150 - 600
Face to face According to IEC 60534-3-2 / ISA 75.08.02 or IEC 60534-3-1
Size range DN 25 - 300 / 1" - 12"
Temperature range -200 °C … +450 °C / -328 ...+842 °F
Tightness According to ANSI/FCI 70-2 class V (metal seat) and class VI (soft seat)


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