“蝶一”系列铸铁闸阀，Z941T-10电动铸铁闸阀，上海铸铁闸阀介绍及特点：

电动闸阀的启闭件是闸板，闸板的运动方向与流体方向相垂直，闸阀只能作全开和全关，不适合作调节和节流。闸板有两个密封面，zui常用的楔式闸板阀的两个密封面形成楔形，楔形角随阀门参数而异，通常为5o。楔式闸阀的闸板可以做成一个整体，叫做刚性闸板；也可以做成能产生微量变形的闸板，以改善其工艺性，弥补密封面角度在加工过程中产生的偏差，这种闸板叫做弹性闸板。闸阀关闭时，密封面可以只依靠介质压力来密封，即依靠介质压力将闸板的密封面压向另一侧的阀座来保证密封面的密封，这就是自密封。大部分闸阀是采用强制密封的，即阀门关闭时，要依靠外力强行将闸板压向阀座，以保证密封面的密封性。闸阀具有以下优点；

1．流体阻力小，密封面受介质的冲刷和侵蚀小。

2．开闭较省力。

3．介质流向不受限制，不扰流、不降低压力。

4．形体简单，结构长度短，制造工艺性好，适用范围广。

电动铸铁闸阀型号:Z41T-10  Z44T-10  Z45T-10  Z941T-10  Z944T-10  Z945T-10  Z9B41T-10  Z9B44T-10  Z9B45T-10

参数及性能：

公称压力或压力级：PN1.0-16.0MPa、ANSI CLASS 150-300LB、JIS10-20K 公称通径或口径：DN10～1000、NPS 1/2 ～36" 连接方式：法兰、对焊、螺纹等适用温度：-196℃～700℃ 驱动方式：手动、伞齿轮传动、气动、电动、液动、气液联动、电液联动 阀体材料：WCB、ZG1Cr18Ni9Ti、ZG1Cr18Ni12Mo2Ti、CF8（304）、CF3（304L）、CF8M（316）、CF3M（316L）、Ti。选用不同的材质，可分别适用于水、蒸汽、油品、硝酸、醋酸、氧化性介质、尿素等多种介质。

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