Ball Series: Details Q61F three-piece welded ball valve: a, Q61F three-piece welded ball valve product features nominal pressure: 1.6-6.4MPa applicable stable range: -20 ~ 232 ℃ ~ 350 ℃ Suitable medium: water, oil , gas and some corrosive liquids (W.O.G) Thread type: G. NPT. BSPT. BSP. DI259 / 2999 two, Q61F three main connection type welded ball valve size and weight units: mm SIZE 1/4 "143/8" 17.51 ??/ 2 "3/4" 1 "1-1 / 4" 1-1 / 2 "2" 2-1 / 2 "3" 4 "D 11.6 12.7 15 20 25 32 38 50 65 80 100 L 60 60 70 85 95 110 130 150 190 210 268 H 50 50 130 130 165 165 190 190 250 250 280 E 100 100 22.7 27.5 33.5 42 48.6 60.5 76.3 90 106.5 three, Q61F three main parts material type welded ball valve Part Name Material Body CF8M stainless steel WCB seals Teflon PTFE Teflon PTFE valve cover carbon steel CF8M SS316 stainless steel WCB sphere stem stainless steel SS304 SS316 SS316 stainless steel SS304 washer nut stainless steel SS304 SS304 SS304 stainless steel handle sets of plastic plastic handle stainless steel SS304 SS304 SS304 stainless steel stem nut packing gland nut stainless steel SS304 SS304 SS304 stainless steel packing poly four fluoro ethylene PTFE Teflon PTFE thrust washers Teflon PTFE Teflon PTFE stainless steel SS304 SS304 stainless steel bolts