Thupi la valve ndilofunika kwambiri, chimodzi mwa zigawo zofunika kwambiri za valve, kusankha zinthu zoyenera kwa thupi la valve ndilofunika kwambiri..Ife ZFA Valve tili ndi mitundu ingapo yamitundu yosiyanasiyana yamavavu kuti ikwaniritse zomwe mukufuna.Kwa thupi la valavu, molingana ndi sing'anga, titha kusankha Cast Iron, Ductile Iron, komanso tili ndi ma valve osapanga dzimbiri, monga SS304,SS316.Chitsulo chotayira chingagwiritsidwe ntchito pa media zomwe sizimawononga.Ndipo SS303 ndi SS316 zofooka za acids ndi zofalitsa zamchere zimatha kusankhidwa kuchokera ku SS304 ndi SS316. Mtengo wa chitsulo chosapanga dzimbiri ndi wapamwamba kuposa chitsulo choponyedwa.