Threaded or welding ball valve 3 piece full bore, manufactured from round bar or casted, construction in according to EN 12516-2; ISO 14313; ANSI B1.1; DIN 3202 M3. ISO 14313 Available size from ¼” to 4” in stainless steel, carbon steel and special steel Rating PN 20 ÷ 100. Thread available ISO 7RP (GAS); ASME B1.20.1 (NPT); ASME B16.11/EN12760 (SW); ASME B16.25 / EN 12627 (BW). Chevron ring on stem. On request: – with  o’ring on stem (patent n°00219688). – fire-safe execution according to ISO 10497 API 607 – fire-safe execution according to BS6755 API 607/6FA (patent n° 00219617). – according to PED 14/68/UE directive – according to  TPED 2010/35/UE directive – according to ATEX 14/34/UE directive – degreseade according to ISO 23208 for oxigen service –  certified  in safety in safety system S.I.L. 3.