Combining with flange joints fact and the ASME B16.20 to spiral wound gasket request, such as PN 6.3 MPa pipe flange in HG standard, the seating stress of spiral wound gasket was analyzed.

• 结合法兰连接的实际；按照ASMEB16.；20对缠绕式垫片压缩的要求；以HG标准中PN6