Q41F46 lined ball valve is a sphere with a circular through hole for opening and closing parts, ball with stem centerline of rotation around the body in order to achieve the valve on and off. Our ball valve series Q41 model, for off two-piece structure form. 1, using a special molding process, so that the sealing surface density is good, plus the combination of a V-type PTFE packing the valve to achieve zero leakage. 2, ball and stem cast as a whole, due to the pressure caused by the change to eliminate the possibility of pressure parts inside the valve stem out of the fundamental guarantee for the safety of use. 3, all-plastic lining technology, resistant to corrosive media. Lined ball valve design specifications lined ball valve main parts Materials Table No. Part name cast gray iron cast ultra-low carbon stainless acid-resistant stainless steel casting ZCPR PL RL 1 body / bonnet HT250 WCB CF8 CF8M CF3 CF3M 2 balls / stem WCB CF8 CF8M CF3 CF3M 3 liner / seat PCTEF (F3), FEP (F46), PFA (soluble F4), PP, PO 4 gland WCB CF8 CF8M CF3 CF3M 5 packing PTFE (F4) PTFE ( F4) PTFE (F4) 6 bracket 35 1Cr18Ni9Ti 1Cr18Ni9Ti 7 35 Cr17Ni2 1Cr18Ni2 8 bolts fastening nut 45 0Cr18Ni9 0Cr18Ni9 9 operating handle WCB WCB WCB lined ball valve main external and connecting dimensions Nominal by LD D1 D2 fb Z-φd DN (mm ) NPS (inch) PN1.0MPa 15 1/2 130 95 65 45 2 14 4-φ14 20 3/4 140 105 75 55 2 16 4-φ14 25 1 150 115 85 65 2 16 4-φ14 32 5/4 165 135 100 78 2 18 4-φ18 40 3/2 180 145 110 85 3 18 4-φ18 50 2 200 160 125 100 3 20 4-φ18 65 5/2 220 180 145 120 3 20 4-φ18 80 3 250 195 160 135 3 22 4-φ18 100 4 280 215 180 155 3 22 8-φ18 125 5 320 245 210 185 3 24 8-φ18 150 6 360 280 240 210 3 24 8-φ23 200 8 457 335 295 265 3 26 8-φ23 250 10 533 390 350 320 3 28 12-φ23 PN1.6MPa 15 1/2 130 95 65 45 2 14 4-φ14 20 3/4 130 105 75 55 2 16 4-φ14 25 1 140 115 85 65 2 16 4- φ14 32 5/4 165 135 100 78 2 18 4-φ18 40 3/2 165 145 110 85 3 18 4-φ18 50 2 203 160 125 100 3 20 4-φ18 65 5/2 222 180 145 120 3 20 4- φ18 80 3 241 195 160 135 3 22 8-φ18 100 4 305 215 180 155 3 24 8-φ18 125 5 356 245 210 185 3 26 8-φ18 150 6 394 280 240 210 3 28 8-φ23 200 8 457 335 295 265 3 30 12-φ23