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Flowserve-Durametallic-Gas Barrier and Containment Seals - GF-200

Gas Barrier and Containment Seals - GF-200

BRAND: Durametallic

GF-200 dual seals are non-contacting, gas barrier seals used in applications where no emissions of hazardous pumped products can be tolerated. Advanced Pattern Groove System provides low speed lift-off, low gas leakage and no face contact.


  • Power
  • Oil & Gas
  • Chemical
  • Water
  • General Industry

industry sectors

  • Nuclear
  • Conventional Steam
  • Geothermal
  • Combined Cycle
  • Concentrated Solar Power
  • Biomass and MSW
  • Upstream Exploration & Production
  • Downstream Processing
  • Basic
  • Specialty
  • Biofuels
  • Pharmaceutical
  • Water
  • Waste Water
  • Agriculture
  • Water Management
  • Pulp & Paper
  • Mining
  • Steel & Primary Metals
  • Food & Beverage
  • Corn Wet Milling & Ethanol
  • Other Industries
Operating Parameters

Up to 35.4 bar (500 psi), -40 to 260°C (-40°F 500°F), up to 25 m/s (83.3 fps), 25.4 to 152 mm (1.000 to 6.000 inch)

Features & Benefits
  • Dual seal pressurized with an inert gas barrier operates with zero process emissions to satisfy environmental monitoring requirements
  • Silicon carbide seal faces use APGS Precision Face Topography to separate the faces with a stiff, thin gas film that prevents wear and extends seal life
  • The LoDragTM O-ring technology provides consistent dynamic O-ring squeeze to reduce drag and maintain proper seal face tracking
  • Seal faces are optimized by geometry, materials, spring loads, and drive mechanisms to remain flat under all operating conditions and deliver long-term, reliable performance
  • Non-contacting seal faces require very low power consumption during start-up and running operation


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