When installation, note flow direction of media of valve body. When connecting two flanges, add sealing mat. Then lock the bolt evenly.
安装时请注意阀体上标注介质流向，两法兰连接时必需加密封垫片，然后均匀锁紧螺栓。
When installation, note flow direction of media of valve body. When connecting two flanges, add sealing mat. Then lock the bolt evenly.
安装时请注意阀体上标注介质流向，两法兰连接时必需加密封垫片，然后均匀锁紧螺栓。
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