Duyar Vana

Istanbul manufacturer, founded in 1965 as a metalworking workshop, producing sprinklers (pendent, upright, sidewall, ESFR, ELO, dry barrel, extended coverage), wet and dry alarm valves, riser manifolds, OS&Y and NRS gate valves, indicating butterfly valves, flow switches, landing valves and above/underground fire hydrants. Its fire certificate page lists UL/ULC listings and FM Approvals for its sprinklers, wet alarm valve, OS&Y gate valves (incl. Y-4045), NRS gate valve Y-4055, indicating butterfly valves Y-4020 to Y-4025, flow switches Y-3002/Y-3003, landing valve Y-3009 and test & drain valve Y-4034. It also lists CE certificates for its alarm valves, hydrants and sprinklers, plus UKCA and EAC.