NDV40Wet Pipe Deluge Valve 40A, Depressurizing Open Type
NDV50Wet Pipe Deluge Valve 50A, Depressurizing Open Type
NDV65Wet Pipe Deluge Valve 65A, Depressurizing Open Type
NDV II 80Wet Pipe Deluge Valve 80A, Depressurizing Open Type
NDV II 100Wet Pipe Deluge Valve 100A, Depressurizing Open Type