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船用气动球阀概述：
一、船用气动球阀结构特点和应用范围L（T）形气动球阀是由气动执行机构和三通阀组成，是一种旋转类切断调节阀门，具有关闭严密，结构紧凑，重量轻，维修方便等优点。广泛用于气体、液体、蒸汽、油品等腐蚀性介质的管道自动化控制。 二、船用气动球阀主要外形尺寸及附图
| 公称压力或压力级 | 公称通径 | 尺寸（mm） | |||||||
| mm | in | L | L1 | D | D1 | D2 | b | z-Φd | |
| 15 | 130 | 65 | 95 | 65 | 45 | 14 | 4-14 | ||
| 20 | 150 | 75 | 105 | 75 | 55/58 | 14/16 | 4-14 | ||
| 25 | 160 | 80 | 115 | 85 | 65/68 | 14/16 | 4-14 | ||
| 32 | 180 | 90 | 135/140 | 100 | 78 | 16 | 4-18 | ||
| PN1.6MPa | 40 | 200 | 100 | 145/150 | 110 | 85/88 | 16 | 4-18 | |
| 50 | 230 | 115 | 160/165 | 125 | 100/102 | 16/18 | 4-18 | ||
| 65 | 290 | 145 | 180/185 | 145 | 120/122 | 18 | 4-18 | ||
| 80 | 310 | 155 | 195/200 | 160 | 135/138 | 20 | 4-18 | ||
| 100 | 350 | 175 | 215/220 | 180 | 155/158 | 20 | 4-18 | ||
| 125 | 400 | 200 | 245/250 | 210 | 185/188 | 22 | 4-18 | ||
| 150 | 480 | 240 | 280/285 | 240 | 210/212 | 24/22 | 8-23/8-22 | ||
| PN2.5MPa | 15 | 130 | 65 | 95 | 65 | 45 | 16 | 4-14 | |
| 20 | 150 | 75 | 105 | 75 | 55/58 | 16 | 4-14 | ||
| 25 | 160 | 80 | 115 | 85 | 65/68 | 16 | 4-14 | ||
| 32 | 180 | 90 | 135/140 | 100 | 78 | 18 | 4-18 | ||
| PN2.5MPa | 40 | 200 | 100 | 145/150 | 110 | 85/88 | 18 | 4-18 | |
| 50 | 230 | 115 | 160/165 | 125 | 100/102 | 20 | 4-18 | ||
| 65 | 290 | 145 | 180/185 | 145 | 120/122 | 22 | 8-18 | ||
| 80 | 310 | 155 | 195/200 | 160 | 135/138 | 22/24 | 8-18 | ||
| 100 | 350 | 175 | 230/235 | 190 | 160/162 | 24 | 8-23/8-22 | ||
| 125 | 400 | 200 | 270 | 220 | 188 | 28/26 | 8-25/8-26 | ||
| 150 | 480 | 240 | 300 | 250 | 218 | 30/28 | 8-25/8-26 | ||
| PN4.0MPa | 15 | 130 | 65 | 95 | 65 | 45 | 16 | 4-14 | |
| 20 | 150 | 75 | 105 | 75 | 55/58 | 16 | 4-14 | ||
| 25 | 160 | 80 | 115 | 85 | 65/68 | 16 | 4-14 | ||
| 32 | 180 | 90 | 135/140 | 100 | 78 | 18 | 4-18 | ||
| 40 | 200 | 100 | 145/150 | 110 | 85/88 | 18 | 4-18 | ||
| 50 | 230 | 115 | 160/165 | 125 | 100/102 | 20 | 4-18 | ||
| 65 | 290 | 145 | 180/185 | 145 | 120/122 | 22 | 8-18 | ||
| 80 | 310 | 155 | 195/200 | 160 | 135/138 | 22 | 8-18 | ||
| 100 | 350 | 175 | 230/235 | 190 | 160/162 | 24 | 8-23/8-22 | ||
| 125 | 400 | 200 | 270 | 220 | 188 | 28 | 8-25/8-26 | ||
| 150 | 480 | 240 | 300 | 250 | 218 | 30 | 8-25/8-26 | ||
| Class150PN2.0MPa | 15 | 1/2 | 130 | 65 | 89 | 60.5 | 35 | - | 4-15 |
| 20 | 3/4 | 150 | 75 | 98 | 70 | 43 | - | 4-15 | |
| 25 | 1 | 160 | 80 | 108/110 | 79.5 | 51 | 11.5 | 4-15/4-16 | |
| 32 | 11/4 | 180 | 90 | 117/120 | 89 | 64 | 13.0 | 4-15/4-16 | |
| 40 | 11/2 | 200 | 100 | 127/130 | 98.5 | 73 | 14.5 | 4-15/4-16 | |
| 50 | 2 | 230 | 115 | 152/150 | 120.5 | 92 | 16.0 | 4-19/4-20 | |
| 65 | 21/2 | 290 | 145 | 178/180 | 139.5 | 105 | 17.5 | 4-19/4-20 | |
| 80 | 3 | 310 | 155 | 190 | 152.5 | 127 | 19.5 | 4-19/4-20 | |
| 100 | 4 | 350 | 175 | 229/230 | 190.5 | 157 | 24.0 | 8-19/4-20 | |
| 125 | 5 | 400 | 200 | 254/255 | 216.0 | 186 | 24.0 | 8-22 | |
| 150 | 6 | 480 | 240 | 279/280 | 241.5 | 216 | 25.5 | 8-22 | |
| JIS10K | 15 | 130 | 65 | 95 | 70 | 52 | 12 | 4-15 | |
| 20 | 150 | 75 | 100 | 75 | 58 | 14 | 4-15 | ||
| 25 | 160 | 80 | 125 | 90 | 70 | 14 | 4-19 | ||
| 32 | 180 | 90 | 135 | 100 | 80 | 16 | 4-19 | ||
| 40 | 200 | 100 | 140 | 105 | 85 | 16 | 4-19 | ||
| 50 | 230 | 115 | 155 | 120 | 100 | 16 | 4-19 | ||
| 65 | 290 | 145 | 175 | 140 | 120 | 18 | 4-19 | ||
| 80 | 310 | 155 | 185 | 150 | 130 | 18 | 8-19 | ||
| 100 | 350 | 175 | 210 | 175 | 155 | 18 | 8-19 | ||
| 125 | 400 | 200 | 250 | 210 | 185 | 20 | 8-23 | ||
| 150 | 480 | 240 | 280 | 240 | 215 | 22 | 8-23 | ||
