一、J41H法兰截止阀结构特点1、选材考究，符合国内、外相关标准，结构合理，造型美观。2、阀瓣、阀座密封面采用铁基合金堆焊或司太立（Stellite）钴基硬质合金堆焊而成，耐磨、耐高温、耐腐蚀、抗擦伤性能好，使用寿命长。4、阀杆经调质及表面氮化处理，有良好的抗腐蚀性和抗擦伤性。5、可采用各种配管法兰标准及法兰密封面型式，满足各种工程需要及用户要求。6、阀体材料品种齐全，填料、垫片可根据实际工况或用户要求合理选配，能适用于各种压力、温度及介质工况。7、倒密封采用螺纹连接密封座或本体堆焊奥氏体不锈钢而成，密封可靠，更换填料可在不停机情况下进行，方便快捷，不影响系统运行。二、J41H法兰截止阀主要用途法兰连接的截止阀适用于公称压力PN1．6～16MPa，工作温度-29～550℃的石油、化工、制药、化肥、电力行业等各种工况的管路上，切断或接通管路介质。驱动方式有手动、齿轮传动、电动、气动等。三、J41H法兰截止阀应用范围设计与制造GB/T12235连接端尺寸结构长度GB/T12221法兰尺寸JB/T79检验与试验JB/T9092材料碳钢GB/T12229不锈钢GB/T12230合金钢Q/ZB66标志GB/T12220供货JB/T7928四、J41H法兰截止阀主要零件材料及主要用途阀体阀盖阀瓣密封圈阀杆填料适用介质适用温度(≤℃)WCBWCB+D507MOD5772Crl3柔性石墨水、油品、蒸汽425ZGlCrl8Ni9Ti0Crl8Ni9Ti+Stellite12Stellite6lCrl8Ni9TiPTFE硝酸类200ZGlCrl8Ni2Mo2TiCF8M+Stellite12lCrl8Ni2Mo2TilCrl8Ni2Mo2TiPTFE磷酸类、碱类、混酸200ZG00Crl7Nil4M02CF3M+Stellite12Stel1ite6316LPTFE磷酸类、尿素、甲铵液200ZGlCr5MOZGlCr5MO+Stellite12Stel1ite625Cr2Mo1VA柔性石墨水、油品、蒸汽550四、J41H法兰截止阀主要外形尺寸、连接尺寸及质量公称压力PN(MPa)公称通径DN(mm)标准值参考值LDD1n2D6bff1Z-φdD0H质量(kg)1．6151309565451624-φ142181205．22015010575551624-φ142581407．12516011585651624-φ142751607．432180135100781824-φ182801808．540200145110851834-φ1833020012．5502301601251001834-φ1835024020652901801451201834-φ1840028025803101951601352038-φ18355280351003502151801552238-φ18415320501254002452101852438-φ18460360751504802802402102438-φ2351040010020060033529526526312-φ2371040021025065040535532030312-φ2378645044630075046041037530312-φ239255006482.5151309565451624-φ141202185.22015010575551624-φ141402587．02516011585651624-φ141602757．432180135100781824-φ181802808．540200145110851834-φ1820033012．5502301601251002034-φ1824035016652901801451202238-φ1825034522803101951601352238-φ18250360331003502301901602438-φ23320370181254002702201882838-φ25320480851504803002502183038-φ2532059810520060036031027834312-φ2540070217825062242537033236312-φ3040078244630069848543039040416-φ305008804564．0151309565454016243-φ141202335．42015010575555l16243-φ141402757．02516011585655816243-φ141602858．8532180135100786618244-φ1818030211．840200145110857618344-φ1820035516．5502301601251008820344-φ18200350236529018014512011022348-φ18250400288031019516013512122348-φ18250430331003502301901601502434．58-φ23320465531254002702201881762834．58-φ25320505931504803002502182043034．58-φ253206111152006003753202822603834．512-φ304007222106．41517010575554118244-φ14140195102019012590685l20244-φ181602281325210135100785822244-φ1818027514．532230150110826624244-φ232003251940260165125957624344-φ2324036025503001751351058826344-φ23200410356534020016013011028348-φ23250450488038021017014012130348-φ23250485561004302502001681503234．58-φ253205371251255002952402021763634．58-φ303205901361505503402802402043834．58-φ343206461572006504053453002604434．512-φ3440075625610．0151701057555352026．54-φ14140202l1201901259068452226．54-φ1816022813．22521013510078502426．54-φ18180250143223015011082652426．54-φ23220326154026016512595752636．54-φ2324035929503001951451128828344-φ25280414496534022017013811032348-φ25320464658038023018014812134348-φ30400547951004302652101721503834．58-φ304506211151255003102502101764234．58-φ344507321491505503502902502044634．512-φ345008403102006504303603122605434．512-φ4l55092559016．0151701107552352426．54-φ1814014812．2201901309062452626．54-φ23160156152521014010072502826．54-φ23180175173223016511585653026．54-φ2522020021．44026017512592753236．54-φ2724023132503002151651328836348-φ25280432546534024519015211044348-φ30320483798038026020516812146348-φ304005901151004303002402001504834．58-φ3445072l180)