西门子二通三通球阀VAI61VBI61相关型号两通阀VAI61.15VAI61.20VAI61.25VAI61.32VAI61.40VAI61.50VAF51.65VAF51.80VAF51.100VAF51.125VAF51.150三通阀VBI61.15VBI61.20VBI61.25VBI61.32VBI61.40VBI61.50具体选型请来电咨询二通和三通球阀PN40VAI61..VBI61..内螺纹连接·黄铜UNSC35330(DZR)阀体·DN15...150·kvs1...63m3/h·内螺纹连接标准ISO7-1·旋转角度90°·可以配有弹簧复位的GQD..9A,GMA..9E和无弹簧复位的GDB..9E,GLB..9E旋转执行器用途用于在暖通空调系统中作为控制或截止阀。适用于闭式冷却水系统（请参阅第5页的气蚀现象）.相关型号两通阀VAI61.15VAI61.20VAI61.25VAI61.32VAI61.40VAI61.50VAF51.65VAF51.80VAF51.100VAF51.125VAF51.150三通阀VBI61.15VBI61.20VBI61.25VBI61.32VBI61.40VBI61.50具体选型请来电咨询西门子二通三通球阀VAI61VBI61)