風道止(zhi)回閥廣(guang)泛适用(yong)于建材(cai)、礦山、電(dian)力、輕工(gong)、玻璃等(deng)行業的(de)通風管(guan)路系統(tong)中，進行(hang)氣流單(dan)向調節(jie)及逆向(xiang)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(jie)構特點(dian)：

Structure characteristic:

  風道止(zhi)回閥結(jie)構設計(ji)新穎，傳(chuan)動獨特(te)，運行靈(ling)活，體積(ji)小，重量(liang)輕。當通(tong)風時，由(you)風壓而(er)使其開(kai)啟，停止(zhi)逆✨風時(shi)🍓，由于葉(ye)片與重(zhong)錘的重(zhong)力，閥闆(pan)自行關(guan)閉，通過(guo)🐅調整重(zhong)錘的位(wei)置來調(diao)整氣流(liu)量。T303P-1風道(dao)止回閥(fa)裝在水(shui)平管道(dao)上，為圓(yuan)法蘭連(lian)接，T303P-2為方(fang)法蘭連(lian)接，T303C-1風道(dao)止回閥(fa)裝在垂(chui)直管道(dao)上（無重(zhong)錘），為圓(yuan)法🍉蘭連(lian)接，T303C-2為方(fang)法蘭連(lian)接。

  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(neng)參數：

Performance parameter:

T303P C ---1外(wai)形連接(jie)尺寸：

Appearance joint dimensions:

T303 P C---2外(wai)形連接(jie)尺寸：