Style CGI - Inner & Outer Rings

Style CGI - Inner & Outer Rings

Spiral Wounds » Style CGI - Inner & Outer Rings

The CGI spiral wound is the new standard spiral wound gasket per ASME B16.20 and is required unless otherwise specified by the user. The CGI is a CG style spiral wound fitted with an internal ring which gives an additional compression limiting stop and prevents inward buckling ring. The inner rings are typically made from the same material as the windings, but can be produced in other alloys depending on service. The outer centering ring accurately centers the gasket on the flange face, provides radial strength, and acts as a compression limiter. The outer ring is typically made from painted carbon steel, but other corrosion resistant materials are available like stainless steels and other higher temperature alloys. The CGI is suitable for use with flat face and raised face flanges and specified for high pressure/temperature service or where corrosive or toxic media are present.

FEATURES
  • Standard sizes available for most flanges
  • Inner ring prevents radial buckling
  • Outer centering ring centers gasket on the flange and provides a compression stop
  • Chevron shaped metal windings provide resiliency
  • Operating temperatures up to 1800 F with Thermiculite® filler
 
BENEFITS
  • Resiliency with fluctuations in temperature/pressure
  • Ease of installation
  • Compression limiting outer ring
  • Inner rings prevent windings from traveling down stream
  • Perfect for abrasive medias where gaskets come in contact with media
 
MATERIALS
  • Windings available in: 304 SS, 316L SS, 321 SS, 347 SS, Inconel® 600, Incoloy® 800/825, Inconel® X-750, Monel®, +++ 
  • Winding for corrosive environments - Alloy 20, Hasteloy® C-276, Monel® 400
  • Fillers available: Non-Asbestos, Flexite Super®, Flexible Graphite, Flexicarb®, Mica, Ceramic, PTFE, Non-sintered PTFE
  • High temperature Thermiculite® 835 filler now available
  • Inner Rings available in: 304 SS, 316L SS, 321 SS, 347 SS, Inconel® 600, Incoloy® 800/825, Inconel® X-750, Monel®, +++ 
  • Outer Centering Rings available in: Painted Carbon Steel, 304 SS, 316L SS, 321 SS, 347 SS, Inconel® 600, Incoloy® 800/825, Inconel® X-750,  Monel®, +++ 
 
CONFIGURATIONS
 

TYPICAL APPLICATIONS

Gas Turbines

Slurry Pumps

Abrasive Medias

Nitric Acid Service

Hydroflouric

H2S, HCL Service

ASME 16.20 Flanges

ANSI B16.5 Flanges

ANSI BS 1650

Steam Service

Tongue & Groove Flanges

Heat Exchangers

Acid & Caustic Service

Gas Turbines

Refining

Chemical Processing

Plastics

Heat Transfer Fluids

Required for PTFE Fillers

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