風道止回(huí)閥廣泛适用于(yú)建材、礦山、電力(lì)、輕工、玻璃🔆等行(hang)業的😘通風管路(lù)系統中，進行氣(qì)流單向調節及(ji)逆向♻️截止。

  This valve is widely used in the venting pipe system in building material, mining, power, light industry and glass　industries etc. it is used to adjust the air flow in single direction and stop in negative direction.

結構(gou)特點：

Structure characteristic:

  風道止回(huí)閥結構設計新(xin)穎，傳動獨特，運(yùn)行靈活，體積⛱️小(xiǎo)，重量輕。當通風(feng)時，由風壓而使(shǐ)其開啟，停止逆(nì)風時，由于葉片(pian)與重錘的重力(lì)，閥闆自行關閉(bi)，通過調整重錘(chui)的位置來調整(zheng)氣流量。T303P-1風道止(zhi)回閥裝在水平(ping)管道上，為圓法(fa)蘭連接，T303P-2為方法(fa)蘭連🔱接，T303C-1風道止(zhi)回閥裝在垂直(zhí)管道上（無重錘(chui)），為圓法蘭連接(jie)，T303C-2為方法蘭連接(jie)。

  The valve has the features of novel design, special transmission, flexible operation, small volume and light weight. The valve will be opened on the pressure of wind when ventilate. The valve disc will close automatically on the effect of blade and heavy hammer gravity when stop adverse wind. Adjust air flow amount by adjusting the position of heavy hammer. Type T303p-1 valve is installed on the horizontal pipe, which is round flange connection, type T303p-2 is square flange connection. Type T303C-1 valve is installed on the vertical pipe without heavy hammer, which is round flange connection, T303C-2 is square flange connection.

性能參數：

Performance parameter:

T303P C ---1外形連接尺(chǐ)寸：

Appearance joint dimensions:

T303 P C---2外形連接尺(chǐ)寸：