U44SM角式柱塞阀与直通式柱塞阀的工作原理相同，只不过是安装在管线中的位置不同，因而石油、化工、化肥、制药等长输管线中有不少的拐角转弯处，而角式柱塞阀正好装在这个部位，这样不但减少了接管弯头，安装方便，省工、省料等特点。
主要外形尺寸
| DN(mm)/ | U44SM-16C(P) UJ44H-16C．P．R | |||||||||||||||
| 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | |
| L | 90 | 95 | 100 | 105 | 115 | 125 | 145 | 155 | 175 | 200 | 225 | 275 | 325 | 375 | 425 | 475 |
| H | 190 | 210 | 220 | 250 | 280 | 300 | 320 | 370 | 420 | 440 | 530 | 610 | 730 | 850 | 970 | 1100 |
| W | 100 | 100 | 120 | 140 | 160 | 180 | 200 | 240 | 280 | 320 | 350 | 400 | 520 | 640 | 760 | 900 |
| D | 95 | 105 | 115 | 135 | 145 | 160 | 180 | 195 | 215 | 245 | 280 | 335 | 405 | 460 | 520 | 580 |
| D1 | 65 | 75 | 85 | 100 | 110 | 125 | 145 | 160 | 180 | 210 | 240 | 295 | 355 | 410 | 470 | 525 |
| D2 | 45 | 55 | 65 | 78 | 85 | 100 | 120 | 135 | 155 | 188 | 210 | 265 | 295 | 375 | 435 | 485 |
| b | 12 | 12 | 12 | 13 | 13 | 13 | 15 | 17 | 17 | 19 | 21 | 23 | 27 | 28 | 30 | 32 |
| Z-φd | 4-14 | 4-14 | 4-14 | 4-18 | 4-18 | 4-18 | 4-18 | 8-18 | 8-18 | 8-18 | 8-23 | 12-23 | 12-25 | 12-25 | 16-25 | 16-30 |
| DN(mm)/ | U44SM-25（P） UJ44H-25C．P．R | |||||||||||||||
| 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | |
| L | 90 | 95 | 100 | 105 | 115 | 125 | 145 | 155 | 175 | 200 | 225 | 275 | 325 | 375 | 425 | 475 |
| H | 190 | 210 | 230 | 260 | 260 | 290 | 320 | 370 | 420 | 460 | 530 | 610 | 730 | 850 | 970 | 1100 |
| W | 100 | 100 | 110 | 140 | 160 | 180 | 200 | 240 | 280 | 320 | 350 | 400 | 520 | 640 | 760 | 900 |
| D | 95 | 105 | 115 | 135 | 145 | 160 | 180 | 195 | 230 | 270 | 300 | 360 | 425 | 485 | 550 | 610 |
| D1 | 65 | 75 | 85 | 100 | 110 | 125 | 145 | 160 | 190 | 220 | 250 | 310 | 370 | 430 | 490 | 550 |
| D2 | 45 | 55 | 65 | 78 | 85 | 100 | 120 | 135 | 160 | 188 | 218 | 282 | 345 | 408 | 465 | 535 |
| b | 14 | 14 | 14 | 15 | 15 | 170 | 19 | 19 | 21 | 25 | 27 | 31 | 33 | 36 | 40 | 44 |
| Z-φd | 4-14 | 4-14 | 4-14 | 4-18 | 4-18 | 4-18 | 8-18 | 8-18 | 8-23 | 8-25 | 8-25 | 12-25 | 12-30 | 16-30 | 16-34 | 16-34 |
