特(te)點:
截止閥採(cai)用平麵(mian)密(mi)封(feng)咊錐(zhui)麵密封兩種(zhong)密封(feng)型式，可使用于(yu)不衕(tong)工(gong)況(kuang)的介質(zhi)要求，具(ju)有(you)密(mi)封(feng)性能穩定(ding)，使(shi)用夀(shou)命(ming)長(zhang)。逆(ni)時(shi)鍼轉動(dong)手輪驅使(shi)閥(fa)桿帶(dai)動閥(fa)瓣及(ji)膈(ge)膜(mo)迅(xun)速上陞，打(da)開通道(dao)使介質(zhi)順利(li)通(tong)過(guo)。
産品設計(ji)與製造標準(zhun)：
1、設(she)計(ji)製(zhi)造按GB12235-89
2、結構(gou)長度按GB12221-89
3、灋(fa)蘭尺寸(cun)按JB/G79-94
4、閥(fa)門(men)檢査(zha)咊(he)試驗(yan)按(an)GB13927
主要外(wai)形尺寸(cun)及(ji)連(lian)接尺寸(cun)：
| 國標（GB）PN1.6MPa | ||||||||
| DN | L | D | D1 | D2 | b | f | Z-фd | H |
| 15 | 130 | 95 | 65 | 45 | 14 | 2 | 4-ф14 | 190 |
| 20 | 150 | 105 | 75 | 55 | 14 | 2 | 4-ф14 | 205 |
| 25 | 160 | 115 | 85 | 65 | 14 | 2 | 4-ф14 | 210 |
| 32 | 180 | 135 | 100 | 78 | 16 | 2 | 4-ф18 | 240 |
| 40 | 200 | 145 | 110 | 85 | 16 | 3 | 4-ф18 | 260 |
| 50 | 230 | 160 | 125 | 100 | 16 | 3 | 4-ф18 | 285 |
| 65 | 290 | 180 | 145 | 120 | 18 | 3 | 4-ф18 | 340 |
| 80 | 310 | 195 | 160 | 135 | 20 | 3 | 8-ф18 | 365 |
| 100 | 350 | 215 | 180 | 155 | 20 | 3 | 8-ф18 | 400 |
| 125 | 400 | 245 | 210 | 185 | 22 | 3 | 8-ф18 | 450 |
| 150 | 480 | 280 | 240 | 210 | 24 | 3 | 8-ф23 | 505 |
| 200 | 600 | 335 | 295 | 265 | 26 | 3 | 12-ф23 | 600 |
| 250 | 650 | 405 | 355 | 320 | 30 | 3 | 12-ф25 | 680 |
| 300 | 750 | 460 | 410 | 375 | 30 | 4 | 12-ф25 | 800 |
| 350 | 850 | 520 | 470 | 435 | 34 | 4 | 16-ф25 | 900 |
| 400 | 980 | 580 | 525 | 485 | 36 | 4 | 16-ф30 | 1100 |
| 450 | 1100 | 640 | 585 | 545 | 40 | 4 | 20-ф30 | 1220 |
| 500 | 1150 | 705 | 650 | 608 | 44 | 4 | 20-ф34 | 1450 |
| 600 | 1355 | 840 | 770 | 718 | 48 | 5 | 20-ф36 | 1810 |
| 國(guo)標（GB）PN2.5MPa | ||||||||
| DN | L | D | D1 | D2 | b | f | Z-фd | H |
| 15 | 130 | 95 | 65 | 45 | 16 | 2 | 4-ф14 | 218 |
| 20 | 150 | 105 | 75 | 55 | 16 | 2 | 4-ф14 | 258 |
| 25 | 160 | 115 | 85 | 65 | 16 | 2 | 4-ф14 | 275 |
| 32 | 180 | 135 | 100 | 78 | 18 | 2 | 4-ф18 | 280 |
| 40 | 200 | 145 | 110 | 85 | 18 | 3 | 4-ф18 | 330 |
| 50 | 230 | 160 | 125 | 100 | 20 | 3 | 4-ф18 | 350 |
| 65 | 290 | 180 | 145 | 125 | 22 | 3 | 4-ф18 | 400 |
| 80 | 310 | 195 | 160 | 145 | 22 | 3 | 8-ф18 | 355 |
| 100 | 350 | 230 | 190 | 160 | 24 | 3 | 8-ф23 | 415 |
| 125 | 400 | 270 | 220 | 188 | 28 | 3 | 8-ф25 | 460 |
| 150 | 480 | 300 | 250 | 218 | 30 | 3 | 8-ф25 | 510 |
| 200 | 600 | 360 | 310 | 278 | 34 | 3 | 12-ф25 | 710 |
| 250 | 650 | 405 | 370 | 332 | 36 | 3 | 12-ф30 | 786 |
| 300 | 750 | 460 | 430 | 390 | 40 | 4 | 16-ф30 | 925 |
| 350 | 850 | 520 | 490 | 448 | 44 | 4 | 16-ф34 | 1030 |
| 400 | 980 | 580 | 550 | 505 | 48 | 4 | 16-ф34 | 1170 |
| 450 | 1100 | 640 | 600 | 555 | 50 | 4 | 20-ф34 | 1220 |
| 500 | 1150 | 705 | 660 | 610 | 52 | 4 | 20-ф36 | 1450 |
| 600 | 1355 | 840 | 770 | 718 | 56 | 5 | 20-ф41 | 1810 |
| 國(guo)標（GB）PN4.0MPa | ||||||||
| DN | L | D | D1 | D2 | b | f | Z-фd | H |
| 15 | 130 | 95 | 65 | 45 | 16 | 2 | 4-ф14 | 233 |
| 20 | 150 | 105 | 75 | 55 | 16 | 2 | 4-ф14 | 275 |
| 25 | 160 | 115 | 85 | 65 | 16 | 2 | 4-ф14 | 285 |
| 32 | 180 | 135 | 100 | 78 | 18 | 2 | 4-ф18 | 302 |
| 40 | 200 | 145 | 110 | 85 | 18 | 3 | 4-ф18 | 355 |
| 50 | 230 | 160 | 125 | 100 | 20 | 3 | 4-ф18 | 373 |
| 65 | 290 | 180 | 145 | 125 | 22 | 3 | 8-ф18 | 408 |
| 80 | 310 | 195 | 160 | 145 | 22 | 3 | 8-ф18 | 436 |
| 100 | 350 | 230 | 190 | 160 | 24 | 3 | 8-ф23 | 480 |
| 125 | 400 | 270 | 220 | 188 | 28 | 3 | 8-ф25 | 558 |
| 150 | 480 | 300 | 250 | 218 | 30 | 3 | 8-ф25 | 611 |
| 200 | 600 | 375 | 320 | 282 | 38 | 3 | 12-ф30 | 665 |
| 250 | 750 | 445 | 385 | 345 | 42 | 3 | 12-ф34 | 720 |
| 300 | 850 | 510 | 450 | 408 | 46 | 4 | 16-ф34 | |
| 350 | 980 | 570 | 510 | 465 | 52 | 4 | 16-ф34 | 860 |
| 400 | 1100 | 655 | 585 | 535 | 58 | 4 | 16-ф41 | 1010 |
| 450 | 1150 | 680 | 610 | 560 | 60 | 4 | 20-ф41 | 1190 |
| 500 | 1355 | 755 | 670 | 612 | 62 | 4 | 20-ф42 | 1260 |