Characteristics of ceramic ball valve with worm gear   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 ceramic ball valve with worm gear Design and manufacture GB/T 12237-2005 Structural length GB/T 12221-2005 Flange connection GB/T 9113.1 Inspection test GB/T 13927-92 Pressure and temperature GB/T 12224 After the valve passes the test, it is necessary to eliminate the water in the cavity, dry the cavity with air, apply anti rust oil, and block the two ends of the diameter with covers. The valve surface shall be painted according to the standard or customer's requirements Main parts and materials of worm wheel 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 8级 13 Equal length double head nut Outsourcing 14 Packing gland WCB 15 Bracket 16 Worm gear 17 Large gasket PTFE 18 valve seat ceramics Drawing of worm gear ceramic ball valve Main connecting dimensions of worm wheel ceramic ball valve DN L D D1 D2 C f H n-d 15 130 95 65 45 14 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 200 457 340 295 266 24 2 320 8-Φ22 250 533 395 350 319 26 2 368 12-Φ22