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ASCO电磁阀C12BA4004011B61
面议ASCO电磁阀三通操作型式X307561683001H1
面议ASCO通用型电磁阀两位三通SC8320G186
面议ASCO电气比例阀结构原理608260111
面议ASCO先导式电磁阀电源条件8263K333S1N00F8
面议ASCO惰性气体电磁阀SCE262C080
面议ASCO压力开关功能833-750300-00 气动电磁阀
面议ASCO比例阀功能833-621652
面议美国ASCO防爆电磁阀EF8344G044 24DC
面议手动复位ASCO先导电磁阀WSJE8327B102
面议ASCO隔爆电磁阀NFETHBXB025B225CCC 防爆电磁阀
面议ASCO防爆电磁阀介质分类WSNF8210D189
面议美国NUMATICS电磁先导阀
阀芯阀套结构特征
阀芯、阀套都用440c不锈钢制成,经精密加工,达到高精度配合公差,间隙仅1μm。由于是配对研磨抛光组件,故它们没有互换性,必须成套供应。当气流经阀套上小孔进入,在阀芯、阀套间微小间隙中形成一空气薄膜,阀芯在阀套中自动对中。当阀芯在这种空气轴承上运动时,像悬浮在空气分子场中一样,*没有金属间的接触。这种空气悬浮结构带来了如下好处:
美国NUMATICS电磁先导阀
(1)芯套间的精密配合形成密封。*摒弃了蕴含许多故障因素的“○”形圈动态密封。
(2)这是一种理论上无磨损的长寿命结构。
(3)空气轴承允许阀工作在经一定过滤得*无润滑场合。与其它号称无油润滑元件相比(实际上装配时已涂上一层不易挥发的润滑脂),这是一种真正意义上的无油润滑。
(4)移动阀芯启动力极小且操作力恒定,这是制造高质量直动阀的要条件。它可不依赖先导压力使直动阀工作在真空到21bar(甚35bar)场合。
(5)芯套相同材质,热膨胀系数*一样,在高温下也能确保空气轴承的存在。
ASCO is the worldwide leader in the design and manufacture of quality solenoid valves. ASCO products are designed to control the flow of air, gas, water, oil and steam. Our heritage of innovation has resulted in an extensive line of ASCO products that range from two position on/off valves to entire flow control solutions designed to meet requirements of thousands of customers.
Whether you need a minor modification of a core product or a complete flow control solution, we can help.