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<SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal">1、 法兰连接或法兰接头,是指由法兰、垫片及螺栓三者相互连接作为一组组合密封结构的可折连接,管道法兰系指管道装置中配管用的法兰,用在设备上系指设备的进出口法兰。<SPAN class=Apple-converted-space> </SPAN></SPAN><BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"> 2、 国际上管法兰标准的几个体系<SPAN class=Apple-converted-space> </SPAN></SPAN><BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"> 1) 欧洲法兰体系:德国DIN(包括苏联)<SPAN class=Apple-converted-space> </SPAN></SPAN><BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"> a、 公称压力:0.1, 0.25, 0.6, 1.0, 1.6, 2.5, 4.0, 6.4, 10.0, 16.0, 25.0, 32.0, 40.0, Mpa<SPAN class=Apple-converted-space> </SPAN></SPAN><BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"> b、 公算通径:15~600mm<SPAN class=Apple-converted-space> </SPAN></SPAN><BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"> c、 法兰的结构型式:平焊板式、平焊环松套式、卷边松套式、对焊卷边松套式、对焊环松套式、对焊式、带颈螺纹连接式、整体式及法</SPAN>兰盖<BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"> d、 法兰密封面有:平面、凹面、凹凸面、榫槽面、橡胶环连接面、透镜面及膜片焊接面<SPAN class=Apple-converted-space> </SPAN></SPAN><BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"> e、 苏联于1980年发布的OCT管法兰同录标准与德国DIN标准相似,不再追述<SPAN class=Apple-converted-space> </SPAN></SPAN><BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"> 2) 美洲法兰体系:美国ANSI B16.5《钢制管法兰及法兰管件》 ANSI B16.47A/B 《大直径钢制法兰》<SPAN class=Apple-converted-space> </SPAN></SPAN><BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"> a、 公称压力:150psi(2.0Mpa),300psi(5.0Mpa),400psi(6.8Mpa),600psi(10.0Mpa),900psi(15.0Mpa),1500psi(25.0Mpa),2500psi(42.0Mpa),<SPAN class=Apple-converted-space> </SPAN></SPAN><BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"> b、 公算通径:6~4000mm<SPAN class=Apple-converted-space> </SPAN></SPAN><BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"> c、 法兰的结构型式:条焊、承插焊、螺纹连接、松套、对焊及法兰盖<SPAN class=Apple-converted-space> </SPAN></SPAN><BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"> d、 法兰密封面:凹面、凹凸面、榫槽面、金属环连接面<SPAN class=Apple-converted-space> </SPAN></SPAN><BR style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"><SPAN style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; BACKGROUND-COLOR: rgb(255,255,255); TEXT-INDENT: 0px; DISPLAY: inline !important; FONT: 14px/25px 宋体; WHITE-SPACE: normal; ORPHANS: 2; FLOAT: none; LETTER-SPACING: normal; COLOR: rgb(51,51,51); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px; font-stretch: normal"> 3) ***JIS管法兰:在石油化工装置中一般仅用于公用工程,在国际上影响较小,在国际上没有形成独立体系。<SPAN class=Apple-converted-space> </SPAN></SPAN>
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