软密封闸阀，工业用阀，软密封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 , 不能作调节和节流。闸板有两个密封面 , 最常用的模式闸板阀的两个密封面形成楔形、楔形角随阀门参数而异 , 公称通径为 DN50～DN1200, 使用温度：≤200℃。
软密封闸阀不应安装在使用压力可能超过其额定工作压力的管路上。
The soft-sealing gate valve should not be used on pipeline in which running pressure may be over the rated pressure.
介绍了软密封闸阀的测试模型、方法及分析结果，对软密封和硬密封闸阀的结构及性能进行了比较和分析。
Introduce the test model, method and the analysis results of the soft faced gate valve, to carry on the comparison structure and functions of soft faced gate valve and hard faced gate valve.
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