耐热钢楔式闸阀
闸阀是最常用的截断阀之一，主要用来接通或截断管路中的介质，不适用于调节介质流量。闸阀适用的压力、温度及口径范围很大，尤其适用于中、大口径的管道。
闸阀的主要优点：
（1）流体阻力小。闸阀闸体内部介质通道是直通的，介质流经闸阀时不改变其流动方向，因而流动阻力较小。
（2）启闭较省力。启闭时闸板运动方向与介质流动方向相垂直。与截止阀相比，闸阀的启闭较为省力。
（3）介质流动方向一般不受限制。介质可从闸阀两侧任意方向流过，均能达到接通或截断的目的。便于安装，适用于介质的流动方向可能改变的管路中。
主要零件材料及性能规范
主要零部件 | 阀体、阀盖、闸板 | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti 0Cr18Ni12Mo2Ti | ZG2Cr5Mo |
阀杆 | 1Cr13 | 1Cr18Ni9Ti | 20Cr1Mo1V1 |
阀杆螺母 | ZguAL10Fe3/球墨铸铁 |
填料 | 柔性石墨、石墨石棉盘根 |
主要 参数 | 适用介质 | 蒸汽、油品、水等 | 硝酸类 | 醋酸类 | 蒸汽、油品、水等 |
适用适用温度℃ | ≤425 | ≤200 | ≤200 | ≤425 |
型号 | 公称 | | 主要结构尺寸(mm) | 阀体 材料 | 性能规范 |
通径 DN(mm) | 压力 PN(MPa) | D | D0 | L | H1 | H2 | 适用温度℃ | 适用 介质 |
Z410Y-16I | 50 | 1.6 | 160 | 200 | 250 | 185 | 240 | ZGCr5Mo | ≤550 | 蒸汽、油品、水 |
" | 65 | " | 180 | 200 | 270 | 240 | 20 | " | " | " |
" | 80 | " | 195 | 250 | 280 | 350 | 395 | " | " | " |
" | 100 | " | 215 | 250 | 300 | 370 | 480 | " | " | " |
" | 150 | " | 280 | 300 | 350 | 560 | 720 | " | " | " |
" | 200 | " | 335 | 350 | 400 | 735 | 955 | " | " | " |
" | 250 | " | 405 | 400 | 450 | 880 | 1150 | " | " | " |
" | 300 | " | 460 | 450 | 500 | 1050 | 1375 | " | " | " |
" | 350 | " | 520 | 500 | 550 | 1195 | 1565 | " | " | " |
" | 400 | " | 580 | 550 | 600 | 1335 | 1760 | " | " | " |
" | 500 | " | 705 | 600 | 700 | 1720 | 2270 | " | " | " |
" | 600 | " | 840 | 650 | 800 | 1830 | 2480 | " | " | " |
" | 700 | " | 910 | | 900 | | | " | " | " |
Z410Y-25I | 50 | 2.5 | 160 | 200 | 250 | 185 | 240 | ZGCr5Mo | ≤550 | 蒸汽、油品、水 |
" | 65 | " | 180 | 200 | 270 | 240 | 320 | " | " | " |
" | 80 | " | 195 | 250 | 280 | 305 | 395 | " | " | " |
" | 100 | " | 230 | 250 | 300 | 370 | 480 | " | " | " |
" | 150 | " | 300 | 300 | 350 | 560 | 720 | " | " | " |
" | 200 | " | 360 | 360 | 400 | 735 | 955 | " | " | " |
" | 250 | " | 425 | 425 | 450 | 880 | 1160 | " | " | " |
" | 300 | " | 485 | 485 | 500 | 1080 | 1405 | " | " | " |
" | 350 | " | 550 | 550 | 550 | 1210 | 1580 | " | " | " |
" | 400 | " | 610 | 610 | 600 | 1345 | 1780 | " | " | " |
" | 500 | " | 730 | 730 | 700 | 1740 | 2290 | " | " | " |
" | 600 | " | 840 | 650 | 800 | 1850 | 2500 | " | " | " |
" | 700 | " | 955 | | 900 | | | " | " | " |
Z410Y-40I | 50 | 4.0 | 160 | 250 | 250 | 220 | 295 | ZGCr5Mo | ≤550 | 蒸汽、油品、水 |
