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This guide is for general use only, please consult Flexitallic engineering for your specific application.

  • Thermiculite® 715 Coreless Sheet

    Thermiculite® 715 Coreless Sheet

    High temperature coreless sheet material.  Replacement for compressed fibre sheet material and tanged graphite sheet. Thermiculite® 715 is available in a standard sheet size of 2m x 1.5m range of 0.8 through 3.2 mm. Other sheet sizes and thickness may be available on request.

    • Max Temperature: 454°C (850°F)
    • Max Pressure: 2030 psig (290 bar) (Class 150–300)
    • ASME m: 3.2
    • ASME y: 4200 psi (29 MPa)
    • Fire safe API 607
  • Change Gasket

    Change Gasket

    Incredibly robust and resilient, metal-wound Change heat exchanger gasket is designed to deliver the most dynamic seal ever. Manufactured with proprietary equipment, using a 5-times thicker metal spiral and a unique laser welding process that penetrates completely through. So it requires no inner or outer ring, and is as easy to handle and install as a double-jacketed gasket. Best of all, it’s proven to perform without fail at least 60% longer than any other heat exchanger gasket. Spiral wound. Double jacketed. CMG. Or Kammprofile. And that’s a game changer.

    • Laser welded for higher unit adhesion, pin point accuracy and solid unit construction
    • Available with a locating ring in all sizes - upon request
    • The high level of stored energy gives the Change gasket extremely high recovery
  • Sigma® 500

    Sigma® 500

    Biaxially orientated PTFE containing hollow glass microspheres
    COLOUR: Blue

    • Enhanced compressibility for low bolt loads
    • Improved flexibility over conventional calendered and graphite sheets
    • Moderate concentrations of acids & caustics, chlorine and hydrogen peroxide
    • Can be used for all concentrations of sulfuric acid
    • WRAS approved for hot and cold potable water services
  • Sigma® 511

    Sigma® 511

    Biaxially-orientated PTFE containing silica
    COLOUR: Pink

    • Standard compressibility
    • Strong acids (except hydrofluoric) to general chemicals
    • Can be used for all concentrations of sulfuric acid
    • Not suitable for molten alkali metals, fluorine gas or hydrogen fluoride
    • WRAS approved for hot and cold potable water services
  • Sigma® 533

    Sigma® 533

    Biaxially orientated PTFE containing barium sulfate
    COLOUR: Off white (pigment free)

    • Standard compressibility
    • Ideal for sealing food, pharmaceutical and other non-contamination applications
    • Strong alkaline solutions to other general chemicals
    • Aqueous hydrofluoric acid below 49%
    • Not suitable for sealing molten alkali metals or fluorine gas
  • Sigma® 588

    Sigma® 588

    Biaxially orientated PTFE
    COLOUR: Off white (pigment free)

    • Highly conformable surface layers designed for glass-lined, FRP, ceramic, plastic and low bolt load applications
    • Modified PTFE inner core design to maximize sealability and prevent blow-out
    • FDA compliant
  • Sigma® 600

    Sigma® 600

    Developed specifically for petrochemical and chemical use. FDA compliant for both low and high bolt loads. Is non contaminating with lower creep an cold flow. A single gasket replacement for metallic and non-metallic flange applications.

    • Max Temperature: 260°C (500°F)
    • Max Pressure: 1235 psig (8.5 MPa)
    • ASME m: 1.4v
    • ASME y: 1595 psi (11 MPa)
    • pH Range: 0–14
  • Flexpro™ PTFE

    Flexpro™ PTFE

    The Flexpro gasket exhibits excellent compressibility and recovery characteristics, maintaining joint tightness under pressure and temperature fluctuations, temperature differential across the flange face, flange rotation, bolt stress relaxation, and creep. Suitable from vacuum to extremely high pressure applications.

  • Style CGI - Flexible Graphite

    Style CGI - Flexible Graphite

    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.

  • Style CG - Flexible Graphite

    Style CG - Flexible Graphite

    Utilizes an external ring which accurately centers gasket on flange face: provides additional radial strength to prevent gasket blowout and acts as a compression stop. A general purpose gasket suitable for use with flat face and raised face flanges.

  • Style CGI - PTFE

    Style CGI - PTFE

    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.

  • Style CG - PTFE

    Style CG - PTFE

    Utilizes an external ring which accurately centers gasket on flange face: provides additional radial strength to prevent gasket blowout and acts as a compression stop. A general purpose gasket suitable for use with flat face and raised face flanges.

  • Flexitallic celebrates safety milestone
    Flexitallic celebrates safety milestone
  • Thermiculite® High Temperature Material – Invincible against Heat.
    Thermiculite® High Temperature Material – Invincible against Heat.
  • Change™ Heat Exchanger Gasket – Our best gasket yet!
    Change™ Heat Exchanger Gasket – Our best gasket yet!
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