Valavu yagulugufe ya Damper kapena chomwe timachitcha kuti Ventilation butterfly valve chimagwiritsidwa ntchito makamaka mu makina owongolera mpweya popangira mphamvu zamagetsi zamagetsi, zitsulo ndi migodi, kupanga zitsulo, sing'anga ndi mpweya kapena mpweya wa flue.Malo ogwiritsira ntchito ali pamtunda waukulu wa mpweya wabwino kapena utsi wotulutsa utsi, kotero kukula kwa valve nthawi zambiri kudzakhala kwakukulu.

Ntchito yaikulu ya damper ndi kusintha kwa kayendedwe ka kayendedwe kake, zofunikira za chisindikizo sizokwera, ndipo kutulutsa kwina kumaloledwa.Nthawi zambiri, mphamvu zakunja zimafunikira kuyendetsa, monga njira zamagetsi kapena pneumatic.

Mapangidwe a valavu ya damfer ndi osavuta, ndipo amangokhala ndi mbale yagulugufe yapakati ndi tsinde la valve.Chifukwa cha kusiyana kwakukulu pakati pa gulugufe mbale ndi valavu thupi, pali okwanira kukula danga, kotero izo zingalepheretse kukula matenthedwe ndi chidule chifukwa cha kutentha kusintha pa ntchito, ndipo sipadzakhala chimbale munakhala zinthu .

Ubwino wa Damper structure:

• Sipadzakhala kukangana mukasintha, moyo wautumiki ndi wautali kwambiri,
• Ndipo kukana kwake koyenda kumakhala kochepa, kufalikira ndi kwakukulu, ndipo sikudzakhudzidwa ndi kuwonjezeka kwa kutentha kwakukulu
• opepuka, osavuta, oyambitsa mwachangu