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                            • 技术文章

                              KJ41Y型抗硫截止阀高性能产品

                              2014-09-29 10:00:54
                              KJ41型抗硫截止阀的阀杆的运动?#38382;?#26377;升降杆式阀杆升降手轮不升降也有升降旋转杆式手轮与阀杆一起旋转升降螺母设在阀体上KJ41型抗硫截止阀只适用于全开和全关不允许作调节和节流
                              KJ41型抗硫截止阀的阀杆的运动?#38382;?#26377;升降杆式阀杆升降手轮不升降也有升降旋转杆式手轮与阀杆一起旋转升降螺母设在阀体上KJ41型抗硫截止阀只适用于全开和全关不允许作调节和节流

                              截止阀属于强制密封式阀门所以在阀门关闭?#20445;?#24517;须向阀瓣施加压力KJ41型抗硫截止阀以强制密封面不泄漏当介质由阀瓣下方进入阀内?#20445;?#25805;作力所需要克服的阻力是阀杆和填料的磨擦力与由介质的压力所产生的推力关阀门的力比开阀门的力大所以阀杆的直径要大否则会发生阀杆顶弯的?#25910;ϡ?br />
                              近年来从自密封的阀门出现后KJ41型抗硫截止阀的介质流向就改由阀瓣上方进入阀腔这时在介质压力作用下关阀门的力小而开阀门的力大阀杆的直径可以相应地减少同?#20445;?#22312;介?#39318;?#29992;下这?#20013;问?#30340;阀门?#27493;?#20005;密

                              我国阀门“三化给”曾规定截止阀的流向一律采用自上而下KJ41型抗硫截止阀开启?#20445;?#38400;瓣的开启高度为公称直径的25%30%?#20445;?#27969;量已达到最大表示阀门已达全开位置所以KJ41型抗硫截止阀的全开位置应由阀瓣的行程来决定

                              一KJ41型抗硫截止阀的结构?#38382;?br />
                              截止阀的种类按阀杆螺纹的位置分?#22411;?#34746;纹式内螺纹式按介质的流向分有直通式直流式和角式KJ41型抗硫截止阀按密封?#38382;?#20998;有填料密封截止阀和波纹管密封截止阀

                              二KJ41型抗硫截止阀阀体的结构?#38382;?#26377;直通式直流式和直角式

                              直通式是最常见的结构但其流体的阻力最大直流式流体阻力较小多用于含固体颗粒或粘度大的流体直角式阀体多采用锻造适用于较小通经较高压力的的截止阀

                              KJ41型抗硫截止阀的安装与维护应注意以下事项

                              1手轮手柄操作的截止阀可安装在管道的任何位置上

                              2手轮手柄及伟动机构不允许作起吊用

                              3介质的流向应与阀体所示箭头方向一致

                              KJ41型抗硫截止阀?#21387;?#27867;应用于各?#27490;?#28809;蒸汽系统矿产石油化工液化气给排水食品制药发电城建市政等领域以及?#29992;?#26085;常生活中
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