真空隔离截止阀适用于公称压力PN4.0～10.0Mpa，工作温度≤200℃的火力电站回水冷凝系统管道上，切断或接通中的介质。适用介质为：水、蒸汽等。密封面运动磨擦力小、启闭轻便，而且密封面磨损有自动补偿功能。结构简单、紧凑、检修方便，使用寿命长。
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