西門子電動閥門西門子電動調節閥西門子溫控閥西門子蒸汽閥門VVG41,VVG44,VVI41,VVI44適用于區域供熱系統、暖通空調系統外螺紋連接二通閥，耐壓等級PN16 閥體：黃銅Rg5 公稱直徑: DN15 … DN50 mm 溫度：－25－130℃ 流量: kvs 0.63 … 40 m3/h 閥桿行程: 20 mm 可與SQX…, SKD…, SKB…系列執行器配合安裝 配件可獨立供貨符合DIN 32730標準適用于開式系統和閉式系統。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