西门子二通三通调节阀VVF31系列相关型号：两通阀VVF31.25VVF31.40VVF31.50VVF31.65VVF31.80VVF31.90VVF31.91VVF31.92三通阀VXF31.25VXF31.40VXF31.50VXF31.65VXF31.80VXF31.90VXF31.91VXF31.92具体选型请来电咨询法兰连接二通阀三通阀,耐压等级PN10•阀体：球墨铸铁GG-25•公称直径：DN25...150mm•流量：kvs5...300m3/h•阀杆行程：20或40mm•可与SQX...,SKD...,SKB...和SKC...系列执行器配合安装相关型号：两通阀VVF31.25VVF31.40VVF31.50VVF31.65VVF31.80VVF31.90VVF31.91VVF31.92三通阀VXF31.25VXF31.40VXF31.50VXF31.65VXF31.80VXF31.90VXF31.91VXF31.92具体选型请来电咨询西门子二通三通调节阀VVF31系列)