YDK43H液压快关止回蝶阀主要安装于汽轮机抽汽管路,高炉煤气或焦炉煤气余压发电装置(TRT)供气管路等高安全等级系统,作紧急切断阀用;在系统出现危机工况时,在0,3``0,8秒钟内实施紧急关阀,实现管路的可靠截止,有效防止汽机尾部蒸汽和冷凝水倒灌,保护汽轮机组的安全或当煤气管路的压力下降时紧急切断煤气管路,防止煤气回火事故发生。我公司生产的液控快关阀又分为;全液压蓄能器型快关阀及液压弹簧蓄能型快关阀。
YDK43H液压快关止回蝶阀产品型号说明:
YxK D 7 ※ 4 3 ※ – ※ ※
阀门材料: C 碳钢 ;P,不锈钢;I铬钼钢
公称压力: 单位: kg/㎝2
密封材料: H 不锈钢,W本体材料
结构形式: 3 三偏心结构(新标准)
连接方式: 法兰连接
P 电气为PLC智能控制
驱动方式: 液压传动
产品类别: 蝶阀
功能特征: YxK蓄能快关;YtK弹簧快关
产品结构及特点:
由阀门本体,传动执行机构,液控装置,电控系统等四大部分组成,其主要结构如下:
1, 电液联动快关蝶阀的阀门本体根据管路系统不同的压力温度等级要求采用三偏心金属硬密封蝶阀或弹性金属硬密封闸阀,这两种阀门是目前世界上较为*和流行的阀门,采用这类阀门可有效密封且启闭阀门力矩小,使用寿命长,维修方便。(详见三偏心金属硬密封蝶阀有关资料)。
2, 电液联动快关蝶阀的阀门材料选用及适用工况
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