Safety valve 90º angular type of rapid opening, semi nozzle, spring loaded. Design: en ISO 4126-1; ASME VIII Div.1; API-526; ASME B16,34 AD 2000 – MERKBLATT A2 Sizes: DN20x32 up to DN150xDN250 Flange Rating: Inlet PN-16 ÷ 40 Outlet PN-16 Also supplied with ANSI B-16,5 flanges Materials: Carbon steel, stainless steel and special alloys (904L, Hastelloy, etc).