这是今天看到一份资料里对此法兰连接的解释:0 ]* n4 \* _9 b& y
Ring-type joint (RTJ)—a flange with a circumferential groove machined : O& m5 x& a9 Q1 kinto the flange face, which requires an oval or an octagonal circular ring ! o6 z6 C' J! Q! J$ P' Wgasket to make the pressure seal.8 \/ Q6 O1 S3 A5 p# }
希望对有同样问题的朋友 有帮助:)