柱塞阀是由阀体、阀盖、阀杆、柱塞、孔架、密封环、手轮等零件组成。当手轮旋转，通过阀杆带动柱塞在孔架中间上下往复运动来完成阀门的开启与关闭功能。在阀门中柱塞与密封环间采用过盈配合，通过调节压盖中法兰螺栓，使密封环压缩所产生的侧向力与阀体中孔面及柱塞外圆密封，从而保证了阀门的密封性，杜绝了内外泄漏、同时阀门开启力矩小，能实现阀门迅速开启和关闭.
主要连接及外形尺寸（PN16）
| PN | DN | L | H | D | D1 | D2 | D6 | b | f | Z-Φd | 重量 |
U41S/Y-16Z/P/R | 15 | 130 | 128 | 95 | 65 | 45 | 14 | 2 | 4-14 | 3 | |
| 20 | 150 | 165 | 105 | 75 | 55 | 16 | 2 | 4-14 | 5 | ||
| 25 | 160 | 190 | 115 | 85 | 65 | 16 | 2 | 4-14 | 7 | ||
| 32 | 180 | 216 | 135 | 100 | 78 | 18 | 2 | 4-18 | 8 | ||
| 40 | 200 | 236 | 145 | 110 | 85 | 18 | 3 | 4-18 | 12 | ||
| 50 | 230 | 250 | 160 | 125 | 100 | 20 | 3 | 4-18 | 16 | ||
| 65 | 290 | 255 | 180 | 145 | 120 | 20 | 3 | 4-18 | 22 | ||
| 80 | 310 | 255 | 195 | 160 | 135 | 22 | 3 | 8-18 | 27 | ||
| 100 | 350 | 259 | 215 | 180 | 155 | 24 | 3 | 8-18 | 40 | ||
| 125 | 400 | 352 | 245 | 210 | 185 | 26 | 3 | 8-18 | 72 | ||
| 150 | 480 | 362 | 280 | 240 | 210 | 28 | 3 | 8-23 | 97 | ||
| 200 | 600 | 385 | 335 | 295 | 265 | 30 | 3 | 12-23 | 205 |
主要连接及外形尺寸（PN25、PN40）
| PN | DN | L | H | D | D1 | D2 | D6 | b | f | Z-Φd | 重量 |
U41S/F-25C/P/R | 15 | 130 | 133 | 95 | 65 | 45 | 40 | 16 | 2 | 4-14 | 4 |
| 20 | 150 | 178 | 105 | 75 | 55 | 51 | 16 | 2 | 4-14 | 6 | |
| 25 | 160 | 180 | 115 | 85 | 65 | 58 | 16 | 2 | 4-14 | 7 | |
| 32 | 180 | 195 | 135 | 100 | 78 | 66 | 18 | 2 | 4-18 | 10 | |
| 40 | 200 | 220 | 145 | 110 | 85 | 76 | 18 | 3 | 4-18 | 13 | |
| 50 | 230 | 250 | 160 | 125 | 100 | 88 | 20 | 3 | 4-18 | 17 | |
| 65 | 290 | 272 | 180 | 145 | 120 | 110 | 22 | 3 | 8-18 | 24 | |
| 80 | 310 | 275 | 195 | 160 | 135 | 121 | 22 | 3 | 8-18 | 33 | |
| 100 | 350 | 312 | 230 | 190 | 160 | 150 | 24 | 3 | 8-23 | 49 | |
| 125 | 400 | 365 | 270 | 220 | 188 | 176 | 28 | 3 | 8-25 | 87 | |
| 150 | 480 | 410 | 300 | 250 | 218 | 204 | 30 | 3 | 8-25 | 115 | |
| 200 | 600 | 450 | 360/375 | 310/320 | 278/282 | 260 | 34/38 | 3 | 12-25/30 | 210 |
主要连接及外形尺寸（PN64）
| PN | DN | L | H | D | D1 | D2 | D6 | b | f | Z-Φd | 重量 |
U41S/F-64C/P/R | 15 | 170 | 145 | 105 | 75 | 55 | 40 | 18 | 2 | 4-14 | 5 |
| 20 | 190 | 195 | 125 | 90 | 68 | 51 | 20 | 2 | 4-18 | 7 | |
| 25 | 210 | 202 | 135 | 100 | 78 | 58 | 22 | 2 | 4-18 | 8 | |
| 32 | 230 | 226 | 150 | 110 | 82 | 66 | 24 | 2 | 4-23 | 12 | |
| 40 | 260 | 239 | 165 | 125 | 95 | 76 | 24 | 3 | 4-23 | 15 | |
| 50 | 300 | 265 | 175 | 135 | 105 | 88 | 26 | 3 | 4-23 | 19 | |
| 65 | 340 | 287 | 200 | 160 | 130 | 110 | 28 | 3 | 8-23 | 26 | |
| 80 | 380 | 301 | 210 | 170 | 140 | 121 | 30 | 3 | 8-23 | 37 | |
| 100 | 430 | 346 | 250 | 200 | 168 | 150 | 32 | 3 | 8-25 | 55 |
