止回(hui)閥安裝于風(feng)(feng)(feng)(feng)管中，當通風(feng)(feng)(feng)(feng)時，由(you)于風(feng)(feng)(feng)(feng)壓而使其(qi)開啟，當停(ting)止送風(feng)(feng)(feng)(feng)時，由(you)于葉片或重錘的重力，使閥門自動關(guan)閉。T303- B用于水平風(feng)(feng)(feng)(feng)管上：T303- Z用于垂直(zhi)風(feng)(feng)(feng)(feng)管上。
了解詳細參(can)數請(qing)聯系(xi)我們
