上海沪化阀门制造有限公司电话：021-56065966电话：021-61992355传真：021-36050115手机：18217385759http://E-mail:web@厂址：上海浦东新区杨莲路163号市区销售处：上海市普陀区武威东路788弄8号李先生产品型号：D343HD643HD943HD43H产品名称：法兰三偏心硬密封蝶阀产品口径：DN40-2000产品简介：制造标准：中国GB,化工标准HG,机械部JB,美标ANSI,API,日本JIS,JPI,德标DIN,英标BS生产。阀体材质：不锈钢,钛合金钢,铬钼钢,低温钢,锻钢,铜,铸铁,铸钢,碳钢,WCB,WC6,WC9,20#,25#,A105,F11,F22,304,304L,316,316L等。工作压力1.0Mpa-50.0Mp,个别产品可耐到100.0Mp。工作温度：-196℃-650℃,个别产品可耐到1200℃连接方式：卡箍,卡套,承插焊,对焊,焊接,法兰,外螺纹,内螺纹。驱动方式：电动,液动,气动,手动。D343H法兰三偏心硬密封蝶阀结构特点：1、硬密封蝶阀采用三偏心硬密封结构，阀座与蝶板几乎无磨损，具有越观越紧的密封功能。2、密封圈选用不锈钢制作，具有金属硬密封和弹性密封的双重优点，无论在低温和高温的情况下，均具有优良的密封性能，具有耐腐蚀,使用寿命长等特点。3、蝶板密封面采用堆焊钴基硬质合金，密封面耐磨损，使用寿命长。4、大规格蝶板采用绗架结构，强度高，过流面积大，流阻小。5、根据用户需求，阀门供应网的硬密封蝶阀可以设计成具有双向密封功能，安装时不受介质流向的限制，也不受空间位置的影响，可在任何方向安装。6、驱动装置可以多工位(旋转90°或180°)安装，便于用户使用。产品介绍：多层次三偏心硬密封蝶阀采用三偏心多层次金属硬密封结构，被广泛用于介质温度≤425℃的治金、电力、石油化工、以及给排水和市政建设等工业管道上，作调节流量和载断流体使用。应用范围：治金、电力、石油化工、以及给排水和市政建设等工业管道标准规范：设计制造标准：GB/T12238-2008结构长度标准：GB/T12221-2005连接法兰标准：GB/T9113压力温度等级：GB/T12224-2005试验检验标准：GB/T13927-2008主要零件的材质零件名称材料阀体铸铁、不锈钢、铬钼钢、合金钢蝶板铸钢、合金钢、不锈钢、铬钼钢密封圈不锈钢与耐高温石棉板组合成多层次阀杆2Cr13、1Cr13不锈钢、铬钼钢轴承奥氏体不锈钢、304氮化填料柔性石墨主要技术参数公称通径DN（mm）50～200050～500公称压力PN（MPa）0.61.01.62.54.0试验压力强度试验0.91.52.43.756.0密封试验0.661.11.762.754.4气密封试验0.60.60.60.60.6渗漏率＜0.1×DNmm3/s（符合GB/T13927-92标准）适用温度碳钢:-29℃～425℃不锈钢-40℃～600℃适用介质空气、水、蒸气、煤气、油品以及酸、碱、盐带有弱腐蚀性介质等驱动形式蜗杆蜗轮传动、气传动、电传动三偏心特点及原理1、偏离管道中心2、偏离密封面中心3、倾斜的锥形当阀门开启时，蝶板与阀座在关闭时瞬间接触，利用蝶板偏心1、偏心2迅速脱离阀座，降低了密封副的磨损，磨擦力矩小，开启灵活。偏心锥面3，使阀门在开启或关闭时蝶板能通过阀座内孔，实现接触密封。另外，锥形蝶板的旋转半径大于密封副接触位置的旋转半径，故蝶板在阀门关闭时将出现越关越紧，能够实现自锁，防止蝶板过位。D343H-16/25C.P.R.V系列蜗轮法兰式三偏心多层次金属硬密封蝶阀公称通径长度标准值外形尺寸（参考值）连接尺寸(标准值)重量(kg)LHD343HD643HD943HPN1.6MPaPN2.5MPa毫米英寸短长H1A1B1H2A2B2H3A3B3DD1Z-dDD1Z-d502108150112350180200625245725302502551651254-181651254-18196521/2112170115370180200625245725302502551851454-181851458-1822803114180120380180200645245725652502552001608-182001608-18251004127190138420180200675355926002502552201808-182351908-22281255140200164460180200715355926402502552502108-182702208-26431506140210175555270280800355927053003152852408-223002508-2650200815223020076040042585025017077530031534029512-2236031012-26642501016525024383040042592525017094530031540535512-2642537012-3099300121782702508954505601035450220107030031546041012-2648543016-30130350141902902809504505601070450220114030031552047016-2655549016-331884001621631030511905355801190450220121030031558052516-3062055016-362704501822233035012555355801250650280133557571464058520-3067060020-363505002022935038013055355801290650280141557571471565020-3373066020-363756002426739044513405706601455850380160565681084077020-3684577020-395607002829243048015207505501585850380184465681091084024-3696087524-42610800323184705301710750550170012503802040656810102595024-39108599024-488809003633051058018107505501865125038022557858631125105028-391185109028-48110010004041055065019609007502015125038023807858631255117028-421320121028-561600120048470630760225010009252250125038026407858631485139032-481530142032-5621501400565307108502435100092528861685159036-481755164036-62320016006460079010302780100092531561930182040-561975186040-62500018007267087012303020110098034212130202044-562195207044-70690020008076095013503270110098036852345223048-622425230048-709100D343H-6/10C.P.R.V系列蜗轮法兰式三偏心多层次金属硬密封蝶阀公称通径长度标准值外形尺寸（参考值）连接尺寸(标准值)重量(kg)LHD343HD643HD943HPN0.6MPaPN1.0MPa毫米英寸短长H1A1B1H2A2B2H3A3B3DD1Z-dDD1Z-d502108150112350180200625245725302502551401104-141651254-18176521/2112170115370180200625245725302502551601304-141851454-1820803114180120380180200645245725652502551901504-182001608-18231004127190138420180200675355926002502552101704-182201808-18251255140200164460180200715355926402502552402008-182502108-18401506140210175555270280800355927053003152652258-182852408-224720081522302007604004258502501707753003153202808-183402958-22602501016525024383040042592525017094530031537533512-1839535012-2295300121782702508954505601035450220107030031540039512-2244540012-22124350141902902809504505601070450220114030031549044512-2250546016-221814001621631030511905355801190450220121030031554049516-2256551516-262604501822233035012555355801250650280133557571459555016-2261556520-263385002022935038013055355801290650280141557571464560020-2267062020-263606002426739044513405706601455850380160565681075570520-2678072520-305407002829243048015207505501585850380184465681086081024-2689584024-3058080032318470530171075055017001250380204065681097592024-30101595024-338459003633051058018107505501965125038022557858631075102024-301115105028-33105010004041055065019609007502015125038023807858631175112028-301230116028-361500120048470630760225010009252250125038026407858631405134032-331455138032-3920001400565307108502435100092528861630156036-361675159036-42300016006460079010302780100092531561830176040-361915182040-48470018007267087012303020110098034212045197044-392115202044-48650020008076095013503270110098036852265218048-422325223048-488700注:法兰标准:GB/T9113.1-2000GB/T911.5.1-2000用户注意:表中H1、H2、H3尺寸均可根据用户需要加长（长杆蝶阀），若需特殊材料定货时提出。注：Dd-代表多层次密封结构D343H蜗轮法兰式三偏心多层次硬密封蝶阀)