Vavu ndiye gawo lofunikira pamapaipi ndipo ili ndi malo ofunikira kwambiri pamakina amakina.Iwo ali osiyanasiyana ntchito.Ndi gawo lofunikira pakupatsirana kwamadzimadzi, madzi ndi gasi.Ilinso gawo lofunikira pamakina opanga magetsi a nyukiliya, mafakitale a petrochemical, madzi ndi kutentha, ndi minda ya anthu.Global vavu mafakitale deta m'zaka zitatu zapitazi, linanena bungwe valavu padziko lonse anali 19.5-20 biliyoni seti, ndi linanena bungwe kuchuluka kwambiri.Mu 2019, mtengo wa valve padziko lonse lapansi unali US $ 64 biliyoni, mu 2020, mtengo wa valve padziko lonse unali US $ 73.2 biliyoni, ndipo mu 2021, mtengo wa valve padziko lonse unali US $ 76 biliyoni.M'zaka ziwiri zaposachedwa, chifukwa cha kutsika kwamitengo yapadziko lonse lapansi, mtengo wa valve wakula kwambiri.Pambuyo pochotsa kukwera kwa inflation, mtengo wa valve padziko lonse wakhalabe pafupifupi 3%.Akuti pofika 2025, mtengo wa valve padziko lonse udzafika pafupifupi US $ 90 biliyoni.
M'makampani opanga ma valve padziko lonse lapansi, United States, Germany, Japan, France ndi Taiwan, China ndi gawo loyamba la mphamvu zonse, ndipo ma valve awo amakhala pamsika wapamwamba kwambiri wamakampani.
Kuyambira m'ma 1980, United States, Japan, Germany, South Korea ndi mayiko ena pang'onopang'ono anasamutsa mafakitale apakati ndi otsika kumayiko omwe akutukuka kumene.China ndi dziko lomwe lili ndi makampani opanga ma valve okhazikika komanso omwe akukula mwachangu.
Pakalipano, lakhala dziko lalikulu kwambiri la mafakitale a valve padziko lonse lapansi pakupanga ma valve ndi kutumiza kunja, ndipo likupita kale kudziko lamphamvu la valve.
Nthawi yotumiza: May-06-2022