Imboni yezimayini okuhlanganisa izimayini & nensimbi (beneficiation + smelting) inezidingo eziphakeme zamavalvu ngaphansi kwezimo ezinzima ezimbizeni nasezinqubweni zokuncibilikisa.I-medium ngokuvamile inezici zezinhlayiya ezinkulu, ukuqina okuphezulu, i-viscosity ephezulu, i-asidi eqinile ne-alkali, njll. I-valve kufanele ingagugi, imelane nokugqwala, futhi isebenze kahle kakhulu ekusebenzeni kokujikeleza lapho kukhethwa i-valve.I-HIVAL® ihlanganisa amavalvu esango lommese, amavalvu ebhola ahlezi ensimbi, amavalvu evemvane aphuma kabili/kathathu, ngokuvamile enziwe ngensimbi ewukhonkolo, insimbi ye-carbon, insimbi engagqwali, njll.