手动截止阀特点结构: 1、与闸阀相比,截止阀的结构较简单,制造和维修都比较方便 2、密封面不易磨损、擦伤、密封性能较好,寿命较长 3、启闭时阀瓣行程较小,启闭时间较短。相比,截止阀的结构较简单,制造和维修都比较方便 手动截止阀设计与制造标准: 设计与制造:GB12233 法兰尺寸:JB/T79 GB9113 结构长度:GB12221 检验与实验:GB/T13927 手动截止阀主要外形连接尺寸: 公称压力 PN | 公称通径 DN | 主要连接尺寸 | L | D | D1 | D2 | D6 | b | f | f1 | Z-φd | 1.6MPa | 15 | 130 | 95 | 65 | 45 | - | 14 | 2 | - | 4-14 | 20 | 150 | 105 | 75 | 55 | - | 14 | 2 | - | 4-14 | 25 | 160 | 115 | 85 | 65 | - | 14 | 2 | - | 4-14 | 32 | 180 | 135 | 100 | 78 | - | 15 | 2 | - | 4-18 | 40 | 200 | 146 | 110 | 85 | - | 16 | 2 | - | 4-18 | 50 | 230 | 160 | 125 | 100 | - | 16 | 3 | - | 4-18 | 65 | 290 | 180 | 145 | 120 | - | 18 | 3 | - | 4-18 | 80 | 310 | 195 | 160 | 135 | - | 20 | 3 | - | 8-18 | 100 | 350 | 215 | 180 | 155 | - | 20 | 3 | - | 8-18 | 125 | 400 | 245 | 210 | 185 | - | 22 | 3 | - | 8-18 | 150 | 480 | 280 | 240 | 210 | - | 24 | 3 | - | 8-23 | 2.5MPa | 15 | 130 | 95 | 65 | 45 | - | 16 | 2 | - | 4-14 | 20 | 150 | 105 | 75 | 55 | - | 16 | 2 | - | 4-14 | 25 | 160 | 115 | 85 | 65 | - | 16 | 2 | - | 4-14 | 32 | 180 | 135 | 100 | 78 | - | 18 | 2 | - | 4-18 | 40 | 200 | 145 | 110 | 85 | - | 18 | 3 | - | 4-18 | 50 | 230 | 160 | 125 | 100 | - | 20 | 3 | - | 4-18 | 65 | 290 | 180 | 145 | 120 | - | 22 | 3 | - | 8-18 | 80 | 310 | 195 | 160 | 135 | - | 22 | 3 | - | 8-18 | 100 | 350 | 230 | 190 | 160 | - | 24 | 3 | - | 8-23 | 125 | 400 | 270 | 220 | 188 | - | 28 | 3 | - | 8-25 | 150 | 480 | 300 | 250 | 218 | - | 30 | 3 | - | 8-25 | 200 | 600 | 360 | 310 | 278 | - | 34 | 3 | - | 12-25 | 250 | 650 | 425 | 370 | 332 | - | 36 | 3 | - | 12-30 | 300 | 750 | 485 | 430 | 390 | - | 40 | 4 | - | 16-34 | 4.0MPa | 15 | 130 | 95 | 65 | 45 | 40 | 16 | 2 | 4 | 4-14 | 20 | 150 | 105 | 75 | 55 | 51 | 16 | 2 | 4 | 4-14 | 25 | 160 | 115 | 85 | 65 | 58 | 16 | 2 | 4 | 4-14 | 32 | 180 | 135 | 100 | 78 | 66 | 18 | 3 | 4 | 4-18 | 40 | 200 | 145 | 110 | 85 | 76 | 18 | 3 | 4 | 4-18 | 50 | 230 | 160 | 125 | 100 | 88 | 20 | 3 | 4 | 4-18 | 65 | 290 | 180 | 145 | 120 | 110 | 22 | 3 | 4 | 8-18 | 80 | 310 | 195 | 160 | 135 | 121 | 22 | 3 | 4 | 8-18 | 100 | 350 | 230 | 190 | 160 | 150 | 24 | 3 | 4.5 | 8-23 | 125 | 400 | 270 | 220 | 188 | 176 | 28 | 3 | 4.5 | 8-25 | 150 | 480 | 300 | 250 | 218 | 204 | 30 | 3 | 4.5 | 8-25 | 200 | 600 | 375 | 320 | 282 | 260 | 38 | 3 | 4.5 | 12-30 | 6.4MPa | 15 | 170 | 105 | 75 | 55 | 41 | 18 | 2 | 4 | 4-18 | 20 | 190 | 125 | 90 | 68 | 51 | 20 | 2 | 4 | 4-18 | 25 | 210 | 135 | 100 | 78 | 58 | 22 | 2 | 4 | 4-18 | 32 | 230 | 150 | 110 | 82 | 66 | 24 | 3 | 4 | 4-23 | 40 | 260 | 165 | 125 | 95 | 76 | 24 | 3 | 4 | 4-23 | 50 | 300 | 175 | 135 | 105 | 88 | 26 | 3 | 4 | 4-23 | 65 | 340 | 200 | 160 | 130 | 110 | 28 | 3 | 4 | 8-23 | 80 | 380 | 210 | 170 | 140 | 121 | 30 | 3 | 4 | 8-23 | 100 | 430 | 250 | 200 | 168 | 150 | 32 | 3 | 4.5 | 8-25 | 150 | 550 | 340 | 280 | 240 | 204 | 38 | 3 | 4.5 | 8-34 | |