Valavundi chida chofala chomwe chidzagwiritsidwa ntchito m'mafakitale ambiri ndipo chimagwira ntchito yofunika kwambiri pakupanga, pali madera ena ofunikira ogwiritsira ntchito ma valve.
1. Ma valve a zida zopangidwa ndi mafuta
Zipangizo zoyeretsera mafuta. Ma valve ambiri omwe amagwiritsidwa ntchito poyeretsera mafuta ndi ma valve a mapaipi, kuphatikizapo ma valve a zipata, ma valve a globe, ma valve owunikira ndi ma valve ochepetsa kuchuluka kwa mafuta, ma valve a mpira. Ma valve a zipata ndi pafupifupi 80%.
Zipangizo zomwe zimagwiritsidwa ntchito ndi ulusi wa mankhwala. Zinthu zazikulu zomwe zimapangidwa ndi ulusi wa mankhwala ndi ulusi wa polyester, acrylic ndi polyvinyl alcohol. Nthawi zambiri amagwiritsa ntchito ma valve a mpira ndi ma valve okhala ndi jekete.
Zipangizo zogwiritsidwa ntchito ndi acrylonitrile. Nthawi zambiri amagwiritsa ntchito ma valve a chipata, ma valve ozungulira, ma valve a mpira ndi ma valve olumikizira. Ma valve a chipata ndi pafupifupi 75% ya ma valve onse.
Zipangizo zogwiritsidwa ntchito ndi ammonia zopangidwa. Nthawi zambiri amagwiritsa ntchito ma valve a chipata, ma valve ozungulira, ma valve owunikira, ma valve a mpira, ma valve a diaphragm, ma valve a singano ndi ma valve ochepetsa mphamvu.
2. Ma valve m'malo opangira magetsi pogwiritsa ntchito madzi
Ntchito yomanga malo opangira magetsi amadzi ku China ikupita patsogolo kwambiri, nthawi zambiri imagwiritsa ntchito ma valve ochepetsa mphamvu zamagetsi, ma valve ochepetsa mphamvu zamagetsi, ma valve ozungulira okhala ndi mainchesi akuluakulu komanso kuthamanga kwambiri.
3. Ma valve m'dera la zitsulo
Njira ya aluminiyamu oxide m'dera la zitsulo imafuna ma valve ozungulira, ma valve owongolera kutayira madzi ； ma valve otsekera zitsulo, ma valve a gulugufe adzafunika m'dera lopangira zitsulo.
4. Ma valve m'dera lokhudzana ndi nyanja
Ma valve ambiri adzafunika m'madera okhudzana ndi nyanja pamodzi ndi chitukuko cha mafakitale amafuta a m'nyanja, monga ma valve a mpira, ma valve owunikira ndi ma valve a misewu yambiri.
Nthawi yotumizira: Feb-23-2022