A COLLABORATIVE APPROACH TO ACHIEVING A GAS-TIGHT SEAL USING EXPANDED POLYTETRAFLUORETHYLENE (ePTFE) GASKETS IN A FIBERGLASS-REINFORCED PLASTIC (FRP) LAP-JOINT FLANGES

被引：0

作者：

Czerwinski, John ^{[1
]}

Garikipati, Vijay K. ^{[1
]}

Jones, Charlene N. ^{[1
]}

Pires, Brad ^{[1
]}

Ludman, John P.

McCauley, Debra H.

Linnemann, Brian

机构：

[1] WL Gore & Associates, Elkton, MD 21922 USA

来源：

PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE, PVP 2012, VOL 2 | 2012年

关键词：

T3; Seal; FRP; Fiber Reinforced Plastic; Stub and Ring Flanges; Lap Joint; Expanded Polytetrafluoroethylene; ePTFE gasket; PTFE gasket; Fugitive Emissions; Bolted Joints; Gas Tight Seal;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The work presented here is a collaborative approach to achieving a reliable gas tight seal in fiberglass reinforced plastic (FRP) flanged joints using expanded polytetrafluoroethylene (ePTFE) gaskets. There are many advantages to incorporating FRP flanged piping systems in today's chemical process industry plant build. As regulations on reliability and fugitive emissions become stricter, it is more important than ever to eliminate possible damage and leak paths at the flanged connections in these systems. This paper details a case study on a collaboration between a chemical plant operator (end user), an ePTFE gasket manufacturer, and a FRP piping original equipment manufacturer. Over a twenty-four month period a FRP flanged system was designed and validated using a custom FRP stub and ring, also known as a lap joint, flange with an ePTFE gasket. The result was the development of a FRP bolted flange system that successfully achieved a reliable gas tight seal for aggressive chemicals. Beginning with a theoretical model and ending with experimental lab analyses, the conclusive results are included herein.

引用

页码：239 / 246

页数：8