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Vavu Yoyang'anira, Vavu Yochepetsa Kupanikizika, Vavu Yotulutsa Madzi, Vavu Yopangira Zida
Valavu ndiye gawo lolamulira mu dongosolo lotumizira madzi, lomwe limagwira ntchito ngati kudula, kulamulira, kupotoza, kupewa kuponderezana, kukhazikika kwa kuthamanga, kupotoza kapena kuchepetsa kuthamanga kwa madzi.
Valavu yogwiritsidwa ntchito mu dongosolo lowongolera madzi, kuyambira valavu yoyimitsa yosavuta kwambiri mpaka dongosolo lowongolera lokha lovuta kwambiri, mitundu yake ndi zofunikira zake ndizosiyana kwambiri. Mavavu angagwiritsidwe ntchito kuwongolera kuyenda kwa mitundu yosiyanasiyana yamadzimadzi monga mpweya, madzi, nthunzi, zinthu zosiyanasiyana zowononga, matope, mafuta, zitsulo zamadzimadzi ndi zinthu zotulutsa ma radioactive. Malinga ndi zinthuzo, valavu imagawidwanso m'mavavu achitsulo choponyedwa, mavavu achitsulo choponyedwa, mavavu achitsulo chosapanga dzimbiri (201,304,316, etc.), mavavu achitsulo cha chromium molybdenum, mavavu achitsulo cha chromium molybdenum vanadium, mavavu achitsulo cha magawo awiri, mavavu apulasitiki, mavavu osakhala achizolowezi, ndi zina zotero.
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304, 310S, 316, 347, 2205 Chodula Chosapanga Chitsulo – Vavu Yochotsera, Vavu ya Mpira, Vavu ya Gulugufe
Chiwonetsero cha malonda:
Valavu ndi chipangizo chomwe chimagwiritsidwa ntchito powongolera komwe madzi akuyenda, kuthamanga ndi kuyenda kwake. Ndi chipangizo choyezera kapena kuyimitsa njira (madzimadzi, gasi, ufa) mu chitoliro ndi zida ndikulamulira kuchuluka kwa madzi omwe akuyenda.
Valavu ndi gawo lolamulira mu dongosolo loperekera madzi a paipi, lomwe limagwiritsidwa ntchito kusintha gawo lolowera ndi njira yapakati yoyendera, ndi ntchito monga kupotoza, kudula, kupotoza, kuyang'ana, kupotoza kapena kutulutsa mphamvu yodzaza. Mavavu omwe amagwiritsidwa ntchito powongolera madzi, kuyambira pa valavu yoyimitsa yosavuta kwambiri mpaka dongosolo lowongolera lokha lovuta kwambiri lomwe limagwiritsidwa ntchito mu mavavu osiyanasiyana, mitundu yake yosiyanasiyana ndi zofunikira zake, m'mimba mwake wa valavu kuyambira pa valavu yaying'ono kwambiri ya zida mpaka m'mimba mwake wa valavu yapaipi yamafakitale ya 10m. Ingagwiritsidwe ntchito kuwongolera kuyenda kwa mitundu yosiyanasiyana monga madzi, nthunzi, mafuta, gasi, matope, zinthu zosiyanasiyana zowononga, chitsulo chamadzimadzi ndi madzi otulutsa ma radioactive. Kuthamanga kwa valavu kumatha kuyambira 0.0013MPa mpaka 1000MPa, ndipo kutentha kogwira ntchito kumatha kukhala c-270℃ mpaka kutentha kwakukulu kwa 1430℃.
