Sigma
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Chemically resistant. Uniformly strong. Inherently clean. Total integrity for the most demanding applications.

FLEXITALLIC The Flexitallic Group is the international market leader in the manufacture and supply of high quality, high value industrial static sealing products, delivering industrial gaskets on a global scale. About us As the developer of the spiral wound gasket in 1912, we have built on this legacy of innovation with revolutionary products including Thermiculite® and Sigma®, The Flange Rescue Gasket winner of the NACE and Dupont Plunkett Awards, and most recently the ChangeTM Gasket, set to transform the global sealing industry. We have a global network of Allied Distributors across 30...

Allied distributors Based on sales and geographic reach, the Flexitallic Group has become the global supplier of industrial gaskets. Innovative Product Range We have a rich history of innovation, which has seen us lead the industry with many new products. Over the years, our products have gained a reputation for quality, reliability and technology that is second to none. Customised Engineering Solutions Our Application Engineering, Production Engineering and R&D teams work closely together to design, develop and manufacture bespoke sealing solutions. We have been responsible for a number of...

SIGMA® For applications where chemical resistance is paramount, SIGMA® is the only option. Innovative Materials, Engineered Solutions Utilising a unique manufacturing process exclusive to Flexitallic, SIGMA® represents the latest generation of biaxially orientated PTFE materials. Utilising a unique manufacturing process exclusive to Flexitallic, we created SIGMA®, an innovatively-engineered line of biaxially-orientated PTFE gasket materials. Specified by more than 500 major companies, SIGMA® stands side by side with Flexitallic metal gaskets and Thermiculite® gasket materials to provide you...

Innovative materials, engineered solutions. PRESSURE CONTAINMENT AND TEMPERATURE Thickness Note: The pressure/temperature (shown above) cannot be used simultaneously. Sheet Sizes* Sheet Thicknesses* Recommended Surface Finish Note: Other sheet sizes and thicknesses are available on request.

SIGMA® PRODUCT RANGE Unparallel sealing performance SIGMA® – the innovation of integrity. SIGMA® 500 • Enhanced compressibility for low bolt loads • Suitable for use in alkali, acid and chlorine service • Improved flexibility over conventional calendered and graphite sheets • Can be used for all concentrations of sulphuric acid • Standard compressibility • Can be used for all concentrations of sulphuric acid • WRAS approved for hot and cold potable water services. SIGMA® 511 • Strong acids (except hydrofluoric) to general chemicals • WRAS approved for hot and cold potable water services •...

SIGMA® PRODUCT RANGE TYPICAL PHYSICAL AND MECHANICAL PROPERTIES Standard Glass Microspheres Tensile Strength Density Filler System Residual Stress (175 C) Creep Relaxation Liquid Leakage (50psi internal pressure) GASKET CONSTANTS & DESIGN INFORMATION – ASME / PRVC (Data based on 1/16” (1.5mm) thickness material) Unit PVRC ROTT PVRC ROTT PVRC ROTT PVRC ROTT Qsmax (RT) Qsmax (175 C) Qsmax (225 C) PQr (60 MPa/175oC)** Draft 9 Test Procedure. *For further information please call the Flexitallic Applications Engineering Dept. **Stiffness: 500kN/mm. ***Leak rate: mg/m2. ****QA: 40 MPa. Additional...

UNITED KINGDOM Scandinavia Mill Hunsworth Lane Aberdeen, Middlesbrough, Ellesmere Port and Cardiff. Siem Supranite UNITED STATES Deer Park UNITED ARAB EMIRATES Amenity Centre Al Hamra Industrial Area UNITED ARAB EMIRATES Flexitallic GmbH UNITED STATES Custom Rubber Products SAUDI ARABIA Flexitallic Middle East LLC Al-Aujam Industrial City KINGDOM OF SAUDI ARABIA Novus Sealing Caspian LLP a Flexitallic Joint Venture Flexitallic Sealing Technology Building 3, South 688 Pangjin Road WuJiang Export Processing Zone Singapore Branch Level 42 Suntec Tower Three About The Flexitallic Group = The...