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<span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">上海丹欧截止阀有限公司</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new=""><span style="mso-spacerun: yes">  </span></span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">截止阀</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">J41H</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">：进口截止阀、气动角座阀、高温截止阀、高压截止阀、高温高压截止阀、高温高压焊接截止阀、高压角式截止阀、耐高压截止阀、液压程控截止阀、耐高温截止阀、耐酸截止阀、电站截止阀、电动电站截止阀、耐酸碱截止阀、中压截止阀、</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">J941</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">电动截止阀、高压电动截止阀、压力自紧式</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">Y</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">型截止阀、日标截止阀、德标截止阀、美标截止阀、日标不锈钢截止阀、德标不锈钢截止阀、美标不锈钢截止阀、黄铜截止阀、铸铁截止阀、</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">J41</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">碳钢截止阀、铸钢截止阀、锻钢截止阀、白钢截止阀、不锈钢截止阀、铬钼钢截止阀、</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">WJ41</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">波纹管截止阀、</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">J41</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">不锈钢丝口截止阀、</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">J41</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">法兰截止阀、氧气截止阀</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">JY41W</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、真空截止阀</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">NKJ41H</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">API</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">磅级截止阀、高压对焊截止阀、伞齿轮截止阀、氨用截止阀</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">J41B</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、角式截止阀</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">J42</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、高压</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">Y</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">型截止阀、电站</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">Y</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">型截止阀、</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">Y</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">型截止阀</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">J45/J65Y</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、保温高压截止阀、保温高温截止阀、保温截止阀</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">BJ41H</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、衬氟塑料截止阀、美标波纹管截止阀、德标波纹管截止阀、液化气截止阀</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">J41N</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、天然气截止阀</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">J41N</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、低温截止阀、防盗截止阀、撞击式大口径截止阀等。材质：不锈钢、铸纲、铸铁、锻钢、铝合金、</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">A105</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">316</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">、</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">304</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">。截止阀简介：截止阀的启闭件是塞形的阀瓣，密封面呈平面或锥面，阀瓣沿流体的中心线作直线运动。阀杆的运动形式，有升降杆式（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）。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，所以在阀门关闭时，必须向阀瓣施加压力，以强制密封面不泄漏。当介质由阀瓣下方进入阀六时，操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故障。近年来，从自密封的阀门出现后，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。同时，在介质作用下，这种形式的阀门也较严密。我国阀门“三化给”曾规定，截止阀的流向，一律采用自上而下、截止阀开启时，阀瓣的开启高度，为公称直径的</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">25</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">％～</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">30</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">％时，流量已达到最大，表示阀门已达全开位置。所以截止阀的全开位置，应由阀瓣的行程来决定。截止阀具有以下优点：</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">1</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">结构简单，制造和维修比较方便。</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">2</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">工作行程小，启闭时间短。</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">3</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">密封性好，密封面间磨擦力小，寿命较长。截止阀的缺点如下：</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">1</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">流体阻力大，开启和关闭时所需力较大。</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">2</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">不适用于带颗粒、粘度较大、易结焦的介质。</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">3</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">调节性能较差。截止阀的种类按阀杆螺纹的位置分有外螺纹式、内螺纹式。按介质的流向分，有直通式、直流式和角式。截止阀按密封形式分，有填料密封截止阀和波纹管密封截止阀。截止阀的安装与维护应注意以下事项：</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">1</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">手轮、手柄操作的截止阀可安装在管道的任何位置上。</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">2</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">手轮、手柄及伟动机构，不允许作起吊用。</span><span style="font-family: ; font-size: 10.5pt" lang="EN-US" times="" new="">3</span><span style="font-family: 宋体; font-size: 10.5pt; mso-bidi-font-size: 10.0pt; mso-ascii-font-family: Times New Roman mso-hansi-font-family: Times New Roman mso-bidi-font-family: Times New Roman mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">介质的流向应与阀体所示箭头方向一致。欢迎选购订做！</span>