Vavundi chida chodziwika chomwe chidzagwiritsidwa ntchito m'mafakitale ambiri ndipo chimagwira ntchito yofunika kwambiri pakupanga moyo, pali madera akuluakulu ogwiritsira ntchito ma valve.
1. Mavavu opangira mafuta opangira mafuta
Zida zoyenga mafuta.Mavavu ambiri omwe amagwiritsidwa ntchito poyenga mafuta ndi mavavu a mapaipi, kuphatikiza ma valve olowera pachipata, ma valve a globe, ma cheki ma valve ndi ma valve othandizira molingana, ma valve a mpira.Ma valve a zipata amakhala pafupifupi 80%.
Zida zopangidwa ndi Chemical fiber.Zinthu zazikuluzikulu za ulusi wamankhwala ndi polyester, acrylic ndi polyvinyl alcohol fiber.Nthawi zambiri amagwiritsa ntchito mavavu a mpira ndi ma valve okhala ndi jekete.
Acrylonitrile - zida zogwiritsidwa ntchito.Nthawi zambiri amagwiritsa ntchito ma valve a zipata, ma valve a globe, ma valve a mpira ndi ma plug valve.Ma valve a zipata amakhala pafupifupi 75% ya ma valve okwana.
Synthetic ammonia amagwiritsa ntchito zipangizo.Nthawi zambiri amagwiritsa ntchito ma valve a zipata, ma valve a globe, ma valve oyendera, ma valve a mpira, ma diaphragm, ma valve a singano ndi ma valve ogwirizana.
2. Mavavu m'malo opangira magetsi opangira magetsi amadzi
Ntchito yomanga malo opangira magetsi opangira magetsi ku China ikupita patsogolo kwambiri, nthawi zambiri imagwiritsa ntchito ma valve ogwirizana, zowongolera zochepetsera mphamvu, ma valve padziko lonse lapansi okhala ndi mainchesi akulu komanso kuthamanga kwambiri.
3. Mavavu m'dera lazitsulo
Aluminiyamu okusayidi ndondomeko m'dera zitsulo amafuna mavavu padziko lonse, mavavu kukhetsa, zitsulo kusindikiza mavavu mpira, mavavu gulugufe adzafunika m'dera zitsulo.
4. Mavavu okhudzana ndi nyanja
Ma valve ochulukirachulukira adzafunika m'malo okhudzana ndi nyanja komanso kutukuka kwa mafakitale amafuta akunyanja, monga mavavu a mpira, ma valavu owunika ndi ma valavu ambiri.
Nthawi yotumiza: Jun-21-2021