Screwed End Ball Valve BSPP F-F 2013NM - 3 Piece. RS screwed end ball valves for the control of flow. Available in a variety of sizes. Investment casting Blow-out proof stem Locking device ISO 5211 Mounting pad TA-Luft approved (option) Length conform to DIN 3202/4-M3-2013SM3 (option) Thread type: ASME B1.20.1 (NPT) DIN2999 and BS21 ISO7/1 and EN10226