事故水塔浮球阀改进
improved accident towers floating ball valve
液控浮球阀
pilot operated ball float valve
半浮球疏水阀
semi-suspended spherical trap valve
浮动式钛球阀
float ball valve made of titanium
浮球式疏水阀
Float trap
ball float trap
free float type steam trap
浮球式自动关闭阀
float-ball self-closing valve
ADV微分浮阀
ADV differential floating tray
ADV微分浮阀塔盘
ADV differential valve tray
B型导向浮阀
B-type floating valve tray
B型导向浮阀塔板
B-type directed valve tray