Ball Series: Q61F / Details N hyperbaric welding ball: Q61F / N hyperbaric welding ball valve All parts are forged using download type stem, equipment inverted sealing structure, the use of mosaic seats, seat O-ring behind the device, Make sure the media does not leak, the sealing surface of nylon 1010, its coefficient of friction is usually babbitt 1/3, so it is a natural slip material. However, flexural strength and impact strength and high ductility comparable to metal one, Q61F / N hyperbaric welded ball valve product features nominal pressure:. 16-32MPa Temperature range: -20 ~ 232 ℃ ~ 350 ℃ Suitable medium: water, oil, gas and some corrosive liquids (WOG) Welding Type: Butt (BW), to undertake welding (SW) Second, the high-pressure welded ball valve PN1.6MPa main connection dimensions and weight Unit: mm Model Nominal size (mm ) L L1 D D1 H L0 Q61F / N-160 Q661F / N-160 10 150 60 90 18 58 220 15 170 70 100 23 62 220 20 191 81 110 29 75 250 25 205 95 115 36 80 250 32 230 110 150 43 9,630,040,260,120,170 4,911,140,050,330,140,200 6,112,840,065,360,150,225 8,018,050,080,380,160,270 105,200,600,100,430 188,320,118,245,800 Model Nominal pneumatic device dimensions (mm) L L1 D D1 H L0 Q61F / N-160 Q661F / N-320 10 QD60 150 60 90 18 58 220 15 QD100 170 70 100 23 62 220 20 QD100 191 81 110 29 75 250 25 QD100 205 95 115 36 80 250 32 QD150 230 110 150 43 96 300 40 QD150 260 120 170 49 111 400 50 QD150 330 140 200 61 128 400 65 360 150 225 80 180 500 80 380 160 270 105 200 600 100 430 188 320 118 245 800 Third, the high pressure welded ball valve main parts and materials suitable for medium model valve ball, valve stem seals handle gaskets, packing water, steam, oil Q61N-160 / 320C Q661N-160 / 320C A105,45 1C18Ni9Ti12Mo9Ti WCB cast VUILUK PTFE Teflon PTFE PTFE para poly Teflon PTFE benzene PPL PPL PPL nitric acid Q61N-160 / 320P Q661N-160 / 320P 304 / 1C18Ni9Ti 304 / 1C18Ni9Ti acetate class Q61N-160 / 320R Q661N-160 / 320R 316 / 1C18Ni9Ti12Mo2Ti 316 / 1C18Ni9Ti12Mo2Ti