Se pwodwi a itilize pou trotlin oswa fèmen koule nan likid korozivite oswa ki pa korozivite gased, ak likid semi.

tiyo yo pòtay yo lajman ki itilize nan dlo tiyo, dlo egou, konstriksyon, petwòl, endistri chimik, manje, manje, medikaman, twal, pouvwa, bato, metaliji

Check valve is a kind of valve whose opening and closing parts are round valve disc, which can block the reverse flow of medium by its own weight and medium pressure

se valv la lajman ki itilize nan Adminstration minisipal, protección dlo, tretman dlo egou elatriye

It is used in gas medium pipeline system of industrial and mining enterprises, municipal administration, environmental protection and other industries, especially suitable for absolute cut off of toxic, harmful and flammable gases.

Air damper is suitable for flue gas, dusty gas etc.