The European Standard EN 13555, updated in the summer of 2014, defines the sealing gasket design factors and test methods for round flange connections. This allows the comparison of the properties of gaskets. Among other things, the standard establishes a new definition of the maximum surface pressure. What changes does this bring for the operators of plants and what criteria should be considered in the selection of gaskets using the characteristic as per EN 13555?

For more than 40 years, the Sealant Technologies Group of W. L. Gore & Associates has fostered a solid knowledge of factors that influence the sealing of piping systems, vessels, pumps and valves. Our singular focus has resulted in the development of innovative and top-performing gaskets and packings. We’ve also established a comprehensive technical services program, specially designed to help customers determine the best solutions for their toughest sealing applications.

GORE Joint Sealant DE has a uniform density over the whole cross section in combination with a high profile. By choosing the correct size it is possible to achieve a tight seal in many applications including those where the flange faces are badly pitted.

GORE Gasketing products are comprised of expanded polytetrafluoroethylene (ePTFE), an inert fluoropolymer material. Some of these products may be supplied adhesive backed or screen printed. 

Guide to verify that the application meets GORE® Gasketing qualifications, and to narrow the selection of products.

Visual step by step instructions for proper bolted flange assembly.

Measure the width of the sealing surface and reference the table below to select the nominal width of GORE Joint Sealant...

The DVGW (Deutscher Verein des Gas- und Wasserfaches e.V.) is the German Technical and Scientific Association for Gas and Water.

The Federal Institute for Materials Research and Testing (BAM) tests the sealing material compatibility for use in flanged connections with liquid and gaseous oxygen. Further information on the test procedure and the result can be found in the following test report. Please note that the test was conducted on the version of this product with no adhesive backing.

CAUTION: Extra care is advised to ensure that the gasket surface is free from particulate contamination that accumulates due to static charge.

This certificate is based on the test program of TÜV Anlagen- und Umwelttechnik or VDI 2440, November 2000 edition, which covers qualification testing of flange seals with respect to their leak rate, blow-out resistance and continuous functionality and verification of sealing characteristics and controlled production quality. The above points were verified in an initial test. Prerequisite is the use of flange systems made of steel, which, when installed, achieve or exceed minimum surface pressure.