Mavavu ndi zida zamapaipi zomwe zimagwiritsidwa ntchito potsegula ndi kutseka mapaipi, kuwongolera kuyenda, kusintha ndi kuwongolera magawo (kutentha, kuthamanga, ndi kutuluka) kwa sing'anga yotumizira. Malingana ndi ntchito yake, ikhoza kugawidwa kukhala valve yotseka, valve yoyang'anira, valve yoyendetsa, ndi zina zotero. Valve ndi...
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