西门子电动调节阀门VVG41,VVG44,VVI41,VVI44适用于区域供热系统、暖通空调系统外螺纹连接二通阀，耐压等级PN16阀体：黄铜Rg5公称直径:DN15…DN50mm温度：－25－130℃流量:kvs0.63…40m3/h阀杆行程:20mm可与SQX…,SKD…,SKB…系列执行器配合安装配件可***供货符合DIN32730标准适用于开式系统和闭式系统。VVG41.15,VVG41.20,VVG41.25,VVG41.32,VVG41.40,VVG41.50VXG41.15,VXG41.20,VXG41.25,VXG41.32,VXG41.40,VXG41.50VVG44.15,VVG44.20,VVG44.25,VVG44.32,VVG44.40VXG44.15,VXG44.20,VXG44.25,VXG44.32,VXG44.40VVI41.15,VVI41.20,VVI41.25,VVI41.32,VVI41.40,VVI41.50VXI41.15,VXI41.20,VXI41.25,VXI41.32,VXI41.40,VXI41.50)