这是今天看到一份资料里对此法兰连接的解释: ; x$ Z& ~2 m1 C! U8 q' PRing-type joint (RTJ)—a flange with a circumferential groove machined" |: h( I; r3 Y' y/ Q# O3 A
into the flange face, which requires an oval or an octagonal circular ring ' f& m9 }/ i0 n9 M7 V6 Rgasket to make the pressure seal. : \" r2 R2 O$ `) d希望对有同样问题的朋友 有帮助:)