Flange Gaskets seal under low pressures.
May 31, 2002 - TriGuard™ gaskets provide positive sealing in fluid piping on fragile flanges or flanges with irregularities, where bolt torque and gasket compression stress must be limited. Expanded PTFE material combines sealing characteristics of elastomers with temperature and chemical resistance of PTFE. Gas-tight sealing can be achieved at 250 psi. They are available in 1/2 to 28 in. ANSI ring and full face gasket sizes for contamination services and highly aggressive fluids.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
Gore, W. L., & Associates, Inc.
551 Paper Mill Rd.
Newark, DE, 19711
USA
Testing Shows New Gore-Tex(R) TriGuard(TM) Gaskets Provide Dramatically Tighter Seal
Elkton, Md., May 20, 2002 - GORE-TEX® TriGuard™ gaskets from W. L. Gore & Associates are designed for positive sealing of aggressive fluid piping applications on fragile flanges or flanges with irregularities, where bolt torque and gasket compression stress must be limited.
Gore's unique, patented gasket construction technique using 100% expanded PTFE material successfully combines the sealability characteristics of elastomers with the temperature and chemical resistance of PTFE. As a result, reliable sealing can be achieved at very low gasket compressions. Outside testing completed in April 2002 by Ecole Polytechnique demonstrated successful gas-tight sealing at 250 psi, which is one-tenth the stress required with other PTFE gaskets.*
ASTM F-37 sealability testing at lower bolt loads also shows that these gaskets provide a seal many times tighter than other forms of ePTFE and PTFE gaskets can accomplish. Plus, the gasket's high creep resistance reduces the need for retorquing.
GORE-TEX® TriGuard™ gaskets are ideal for contamination services and highly aggressive fluids, including chlorine and many monomer services. They are available in 1/2" to 28" ANSI ring and full face gasket sizes.
* Test conditions: Helium at 100 psi internal pressure; 250 rms flange surface, 5.88" outside gasket diameter.
W. L. Gore & Associates, Inc. is a creative technology company with over 6,000 associates and 48 plants in 16 countries around the world. For over 25 years the Sealant Technologies Group has been developing innovative PTFE gaskets, seals, and other fluid-sealing products for both standard and unique sealing and pumping applications. Each product is engineered to be the best performing and highest quality product in its class. For more information, call 1-800-654-4229, or visit the corporate web site at www.gore.com/sealants.
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