Structure features of manual ceramic ball valve:   1. The thickness of valve shell exceeds the requirements of standard data, with three-stage structure design and solid shape. Beautiful appearance  2. The sealing surface is precisely ground to ensure zero leakage 3. All the materials in contact with the medium are structural ceramics with high wear resistance. Oxidation resistance and corrosion resistance   Application Specification for manual ceramic ball valve Design and manufacture GB/T 12224 Connection end size Structural length GB/T 12221 Flange size GB/T 9113.1 Inspection and test GB/T 9092 Material Science carbon steel GB/T 12229 stainless steel GB/T 12230 sign GB/T 12220 supply commodity GB/T 12252 Main parts and materials of manual ceramic ball valve Serial number name Material Science 1 End valve cover WCB 2 Mesosoma WCB 3 Middle sleeve engineering ceramics 4 O-ring Fluororubber 5 Flange sleeve engineering ceramics 6 sphere engineering ceramics 7 O-ring Fluororubber 8 Disc spring 50CrVA 9 Septum 304 10 Stem 2Cr13 11 filler PTFE 12 Hexagon nut Grade 8 13 Equal length double head nut Outsourcing 14 Packing gland WCB 15 Positioning film Q235 White zinc plating 16 External Circlips 65Mn 17 Handle Outsourcing 18 Washer Q235 19 Hexagon socket screw 35# 20 Six bolts B 21 Large gasket PTFE 22 valve seat ceramics Drawing of manual ceramic ball valve Main connection dimensions DN L D D1 D2 C f H n-d 15 130 95 65 46 15 2 86 4-Φ14 20 130 105 75 56 16 2 95 4-Φ14 25 140 115 85 65 16 2 108 4-Φ14 32 165 140 100 76 18 2 115 4-Φ18 40 165 150 110 84 18 2 115 4-Φ18 50 203 165 125 99 20 2 115 4-Φ18 65 222 185 145 118 20 2 115 4-Φ18 80 241 200 160 132 20 2 145 8-Φ18 100 305 220 180 156 22 2 188 8-Φ18 125 356 250 210 184 22 2 210 8-Φ18 150 394 285 240 211 24 2 260 8-Φ22 200 457 340 395 266 24 2 320 8-Φ22 250 533 395 350 319 26 2 368 12-Φ22