平板闸阀的特点与用途简述
2015-09-22 10:18
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<span style="font-family:'Times New Roman';font-size:10.5pt;">平板<strong>闸阀</strong>的特点: </span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> 1.<span>阀座的密封结构应为弹性有预紧力,上、下游密封座同时密封的结构。阀座与密封物间始终为面对面密封。</span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> 2.<span>阀座有自清洗功能,并且在阀门开启或关闭过程中不受气流的直接冲刷。阀座应由有润滑、不磨损材料制成。 </span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> 3.<span>阀门执行机构的故障不会影响到阀门的其它部分,维修和更换工作能够在不拆下阀门的情况下进行。 </span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> (1)<span>轭架套管:铝青铜轭架套管配置针形止推轴承,*大程度减少操作扭矩。 </span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> (2)<span>阀杆:螺纹长度直到托架;销钉和点焊;具有稳定性。 </span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> (3)<span>压力密封:结构简单,配置分段扣环和镀银低碳钢垫圈,有助于拆卸和实现*好的阀帽密封。 </span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> (4)<span>阀座环:焊接阀座环垂直于流动通道,易于维护。 </span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> (5)<span>执行机构:这些阀门可以配置电动、液动或气动执行机构。</span><span>DN300</span><span>以下配置标准手动手轮,</span><span>DN350</span><span>以上配置斜齿轮操作机构。 </span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> (6)<span>轭架:完全装配式轭架通过抗震测试,易于维护和安装执行机构。 </span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> (7)<span>压盖:两件式,自调节压盖,避免被弹出。 </span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> (8)<span>整体后座:硬面,使用寿命*长。 </span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> (9)<span>阀瓣:弹簧负载阀瓣能够自行调节,减少执行机构的扭矩需求。 </span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> (10)<span>整体止动:整体铸造托架止动装置,定位组装的托架阀瓣,使得阀座更加稳定可靠。 </span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> 4.<span>阀体有铸造和焊接两种结构。 </span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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<span style="font-family:'Times New Roman';font-size:10.5pt;"> 5.<span>阀座采用</span><span>O</span><span>形密封圈密封和施加预紧力的浮动阀座结构,使阀门进出口双向密封;并且该结构的启闭力矩仅为普通阀门的</span><span>1/2</span><span>,能达到轻松开、关阀门。 </span></span><span style="font-family:'Times New Roman';font-size:10.5pt;"></span>
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