Seal Gas Filtration | Filtration Systems | John Crane

Filtre gaz FCF

Optimized Seal Gas Filtration for API 692

Specially designed John Crane’s Indufil® filters remove liquid and particle contamination and maximize reliable dry gas seal operation. FCF Series Seal Gas Filtration Systems are available in single and duplex configuration, in stainless steel as a standard and in higher alloys. The filters comply with international pressure vessel and design codes and were designed in alignment with API 614 and designed for API 692.

In addition to complying with filtration requirements for contaminants of 1 micron and smaller at particulate efficiencies of 99.9%, coalescing performance is down to 0.005 ppm (w), all within a smaller footprint.



  • California Residents: PROPOSITION 65 WARNING
  • Coalescing and particle filtration element options
  • Filter contaminants of 1 micron and smaller at particulate efficiencies of 99.9%
  • Coalescing performance down to 0.005 ppm (w)
  • Reduced system footprint up to 40% 
  • Interlinked transfer valves with bolted construction and providing a safe and zero-leak operation both to atmosphere and between the pressure vessels
  • Both transfer valve (Class A) and needle valve (Class B) compliant to ISO 15848 (Fugitive Emission)
  • Bolted cover construction allowing an easy and clean filter element change out

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