英国NORGREN脉冲阀8296700.8171.23050
空气处理设备（各种过滤器、调压阀、三联件等）；
自保持型电磁阔：自保持型电磁就是只需瞬间通电即完成阀门开关动作,阀芯位置不需电来保持。它的优点在于节约能源尤其是用电池作电源的场合，而且可不考虑温升，从而线圈寿命长，在高低温、防爆等场合有较高性。常见的有机械式保持和永磁体保持，又分双线圈和单线圈，以单线圈磁保持结构为简单。它是以改变直流电源极性改变对应阀门开关的两种状态。这种电磁单独安装线圈外部接线需加转换开关，而与智能仪表配套则十分方便。费煤气表和水表所配的电磁是仪表成败的关键之一，其中的自保持技术又是电磁的成败的重要因素，国内的自保持电磁已日趋成熟
8296700.8171.23050，
8296700.8171.02400
8296600.8171.23050
8296400.8171.23050，
8296400.8171.02400
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