Kufotokozera Kwachidule:

4 njira pulagi valavu 3 njira pulagi vavundi chidutswa chotseka kapena valavu yozungulira yozungulira, pozungulira madigiri 90 kuti apange doko pa pulagi ya valve ndi thupi la valve lomwelo kapena losiyana, lotseguka kapena lotseka valavu.Pulagi ya pulagi valavu akhoza kukhala cylindrical kapena conical mu mawonekedwe.M'mapulagi a cylindrical, mayendedwe amakhala amakona anayi;Mu pulagi ya tapered, njirayo ndi trapezoidal.Maonekedwe awa amapangitsa kapangidwe ka valavu ya pulagi kukhala yopepuka, koma nthawi yomweyo imapanga kutayika kwina.Valavu ya pulagi ndiyoyenera kwambiri kudula ndi kulumikiza sing'anga ndi kusokoneza, koma kutengera mtundu wa ntchito komanso kukana kukokoloka kwa malo osindikizira, nthawi zina imatha kugwiritsidwanso ntchito popumira.Chifukwa kuyenda pakati pa kusindikiza pamwamba pa valavu ya pulagi kumakhala ndi zotsatira zopukuta, ndipo pamene kutsegulidwa kwathunthu, kumatha kulepheretsa kukhudzana ndi sing'anga yothamanga, kotero kungagwiritsidwe ntchito pakatikati ndi particles zoimitsidwa.zofunika mu zipangizo.

Malingaliro a kampani NORTECHis m'modzi mwa atsogoleri achi China4 njira plug valve3 njira plug valve   Wopanga & Wopereka.