mankhwala ntchito throttling kapena kutseka pa otaya zakumwa zikuwononga kapena osakhala zikuwononga gased, ndi madzi theka.

Mavavu chipata ankagwiritsa ntchito wapampopi madzi, zimbudzi, zomangamanga, mafuta, makampani mankhwala, chakudya, mankhwala, nsalu, mphamvu, sitima, zitsulo

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

vavu chimagwiritsidwa ntchito adminstration boma, madzi conservancy, zimbudzi chithandizo etc

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.