Awa ndi ma valve a DN50 WCB. Imakhala ndi mawonekedwe osindikizira odalirika, okhala ndi zolumikizira za flange zomwe zimakwanira bwino kuti zipewe kutayikira. Zosiyanasiyana za kukula kwake zilipo, ndipo zimatha kusinthidwa mosavuta kuzinthu zonse zapakatikati komanso zotsika. Mapangidwe amkati amapangidwa momveka bwino, kuonetsetsa kuti kutsegula ndi kutseka kosalala komanso kukhazikika kwautali. Ngakhale kugwiritsidwa ntchito kwanthawi yayitali komanso pafupipafupi, kumatha kukhalabe ndi ntchito yabwino yosindikiza. Thupi la valavu limapangidwa ndi chitsulo cha kaboni cha WCB, chopangidwa mwaluso kwambiri mwatsatanetsatane. Imadzitamandira kukana kwamphamvu kwa dzimbiri, kukana kutentha kwambiri, komanso kukana kukakamizidwa.
Minda Yofunsira
Zimasinthidwa kuti zisamayendetsedwe ndikuwongolera zowulutsa monga mafuta osayengedwa, mafuta oyengedwa, ndi ma reagents amafuta mumakampani a petrochemical, zomwe sizimangokhazikika ndikuwongolera kuthamanga komanso kukana dzimbiri.
Imayang'ana kwambiri ntchito yotetezeka ya nthunzi ndi madzi ozizira. Zimakhudza kayendedwe ka madzi, ngalande, ndi madzi ozungulira m'matauni ndi machitidwe a madzi a mafakitale, komanso kayendetsedwe ka zofalitsa mu makampani opanga mankhwala, kuonetsetsa kuti mayunitsi akugwira ntchito mokhazikika. Kuwongolera madzimadzi pakupanga tsiku ndi tsiku monga mapaipi a nthunzi ndi mapaipi amafuta, kumathandizira kuyenda bwino kwa nthunzi.