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 Gasket Dimensions (Flat Ring) ASME B16.21-2016

Dimensions applicable to ASME B16.5 Pipe Flanges and ASME B16.47 Series A, Large Diameter Steel Flanges.

installation

Visual step by step instructions for proper bolted flange assembly.

Sealants overview brochure

For more than 50 years, the Sealant Technologies Group of W. L. Gore & Associates has focused on the factors that enable more reliable 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.

Reliable Sealing of Heat Exchangers

ePTFE gasket tapes for high chemical resistance - The connections to shell and tube heat exchangers pose immense challenges for the seals that are used because of both the chemically aggressive media and the frequent temperature load changes. Despite its excellent chemical resistance, polytetrafluoroethylene (PTFE) is not typically suitable as a sealing material in this case because the creep tendency of this material jeopardizes a reliable seal.

Technical article published in PROCESS Worldwide Magazine.

 

Data sheet for GORE® GR Sheet Gasketing

Exceptionally resistant to creep, cold flow and aggressive media, this 100% ePTFE gasket sheet reliably seals steel piping and equipment.

BAM Report

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 embossed version of this product with no printing ink on the sheet. 

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

ABS Certificate

GORE® GR Sheet Gasketing has received a PDA (Product Design Assessment) certificate under the ABS Approval Program. The scope and limitations of this assessment are detailed on the pages attached to this certificate.

Installation Guide for GORE GR Sheet Gasketing

To achieve a reliable seal, adequate gasket stress must be applied during installation. The Gore torque tables provide end-users with an estimation of bolt preload for use during flange assembly.

Gasket Product Selection Guide

Gasket Product Selection Guide

Product Selection Guides, 252.5 KB

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

Sealants Technical Recommendation Request

Technical Recommendation Request

Product Selection Guides, 875.93 KB

Please fill in this form, so our experts can provide you with torque guidelines, product recommendations or installation guidance for your specific application.

Please note: This form cannot be filled out online. To request a recommendation for your application:

  • Download the form to your computer. 
  • Open the PDF form using Adobe Acrobat Reader. 
  • Fill out the front of the form and click the "Submit" button on the form to email it to Gore.