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不锈钢偏心半球阀产品概述：
不锈钢偏心半球阀主要外形和连接尺寸：
| 公称压力 PN （MPa） | 公称通径 DN | 尺 寸（mm） | ||||||||
| L | D 系列1/系列2 | D1 | D2 | D6 | b | f | Z-φd | |||
| mm | in | 法兰 | ||||||||
| 0.6 | 40 | - | 125 | 130 | 100 | 80 | - | 16 | 3 | 4-14 |
| 50 | - | 140 | 140 | 110 | 90 | - | 16 | 3 | 4-14 | |
| 65 | - | 190 | 160 | 130 | 110 | - | 16 | 3 | 4-14 | |
| 80 | - | 178 | 190/185 | 150 | 125 | - | 18 | 3 | 4-18 | |
| 100 | - | 200 | 210/205 | 170 | 145 | - | 18 | 3 | 4-18 | |
| 125 | - | 254 | 240/235 | 200 | 175 | - | 20 | 3 | 8-18 | |
| 150 | - | 267 | 265/260 | 225 | 200 | - | 20 | 3 | 8-18 | |
| 200 | - | 292 | 320/315 | 280 | 255 | - | 22 | 3 | 8-18 | |
| 250 | - | 330 | 375/370 | 335 | 310 | - | 24 | 3 | 12-18 | |
| 300 | - | 390 | 440/435 | 395 | 362 | - | 24 | 4 | 12-23 | |
| 350 | - | 430 | 490/485 | 445 | 412 | - | 26 | 4 | 12-23 | |
| 400 | - | 530 | 540/535 | 495 | 465 | - | 28 | 4 | 16-23 | |
| 450 | - | 580 | 595/590 | 550 | 518 | - | 28 | 4 | 16-23 | |
| 500 | - | 630 | 645/640 | 600 | 568 | - | 30 | 4 | 16-23 | |
| 600 | - | 800 | 755 | 705 | 670 | - | 30 | 5 | 20-26/25 | |
| 1.0 | 40 | - | 125 | 145 | 110 | 85 | - | 16 | 3 | 4-18 |
| 50 | - | 140 | 160 | 125 | 100 | - | 16 | 3 | 4-18 | |
| 65 | - | 190 | 180 | 145 | 120 | - | 18 | 3 | 4-18 | |
| 80 | - | 178 | 195 | 160 | 135 | - | 20 | 3 | 4-18 | |
| 100 | - | 200 | 215 | 180 | 155 | - | 20 | 3 | 8-18 | |
| 125 | - | 254 | 245 | 210 | 185 | - | 22 | 3 | 8-18 | |
| 150 | - | 267 | 280 | 240 | 210 | - | 24 | 3 | 8-23 | |
| 200 | - | 292 | 335 | 295 | 265 | - | 24 | 3 | 8-23 | |
| 250 | - | 330 | 390 | 350 | 320 | - | 26 | 3 | 12-23 | |
| 300 | - | 390 | 440 | 400 | 368 | - | 26 | 4 | 12-23 | |
| 350 | - | 430 | 500 | 460 | 428 | - | 28 | 4 | 16-23 | |
| 400 | - | 530 | 565 | 515 | 482 | - | 28 | 4 | 16-25 | |
| 450 | - | 580 | 615 | 565 | 532 | - | 30 | 4 | 20-25 | |
| 500 | - | 630 | 670 | 620 | 585 | - | 30 | 4 | 20-25 | |
| 600 | - | 800 | 480 | 725 | 685 | - | 34 | 5 | 20-30 | |
| 700 | - | 900 | 895 | 840 | 800 | - | 38 | 5 | 24-30 | |
| 800 | - | 1000 | 1010 | 950 | 905 | - | 42 | 5 | 24-34 | |
| 1.6 | 40 | - | 125 | 145 | 110 | 85 | - | 16 | 3 | 4-18 |
| 50 | - | 140 | 160 | 125 | 100 | - | 16 | 3 | 4-18 | |
| 65 | - | 190 | 180 | 145 | 120 | - | 18 | 3 | 4-18 | |
| 80 | - | 178 | 195 | 160 | 135 | - | 20 | 3 | 8-18 | |
| 100 | - | 200 | 215 | 180 | 155 | - | 20 | 3 | 8-18 | |
| 125 | - | 254 | 245 | 210 | 185 | - | 22 | 3 | 8-18 | |
| 150 | - | 267 | 280 | 240 | 210 | - | 24 | 3 | 8-23 | |
| 200 | - | 292 | 335 | 295 | 265 | - | 26 | 3 | 12-23 | |
| 250 | - | 330 | 405 | 355 | 320 | - | 30 | 3 | 12-25 | |
| 300 | - | 390 | 460 | 410 | 375 | - | 30 | 4 | 12-25 | |
| 350 | - | 430 | 520 | 470 | 435 | - | 34 | 4 | 16-25 | |
| 400 | - | 530 | 580 | 525 | 485 | - | 36 | 4 | 16-30 | |
| 450 | - | 580 | 640 | 585 | 545 | - | 40 | 4 | 20-30 | |
| 500 | - | 630 | 705 | 650 | 608 | - | 44 | 4 | 20-34 | |
| 600 | - | 800 | 840 | 770 | 718 | - | 48 | 5 | 20-41 | |
| 700 | - | 900 | 910 | 840 | 788 | - | 50 | 5 | 24-41 | |
| 800 | - | 1000 | 1020 | 950 | 898 | - | 52 | 5 | 24-41 | |
| 2.5 | 40 | - | 125 | 145 | 110 | 85 | - | 18 | 3 | 4-18 |
| 50 | - | 140 | 160 | 125 | 100 | - | 20 | 3 | 4-18 | |
| 65 | - | 190 | 180 | 145 | 120 | - | 22 | 3 | 8-18 | |
| 80 | - | 178 | 195 | 160 | 135 | - | 22 | 3 | 8-18 | |
| 100 | - | 200 | 230 | 190 | 160 | - | 24 | 3 | 8-23 | |
| 125 | - | 254 | 270 | 220 | 188 | - | 28 | 3 | 8-25 | |
| 150 | - | 267 | 300 | 250 | 218 | - | 30 | 3 | 8-25 | |
| 200 | - | 292 | 360 | 310 | 278 | - | 34 | 3 | 12-25 | |
| 250 | - | 330 | 425 | 370 | 332 | - | 36 | 3 | 12-30 | |
| 300 | - | 390 | 485 | 430 | 390 | - | 40 | 4 | 16-30 | |
| 350 | - | 430 | 550 | 490 | 448 | - | 44 | 4 | 16-34 | |
| 400 | - | 530 | 610 | 550 | 505 | - | 48 | 4 | 16-34 | |
| 450 | - | 660 | 600 | 555 | - | 4 | 20-34 | |||
| 500 | - | 630 | 730 | 660 | 610 | - | 52 | 4 | 20-41 | |
| 600 | - | 800 | 840 | 770 | 718 | - | 56 | 5 | 20-41 | |
| 700 | - | 900 | 955 | 875 | 815 | - | 60 | 5 | 24-48 | |
| 800 | - | 1000 | 1070 | 990 | 930 | - | 64 | 5 | 24-48 | |
| 4.0 | 40 | - | 125 | 145 | 110 | 85 | 76 | 18 | 3 | 4-18 |
| 50 | - | 140 | 160 | 125 | 100 | 88 | 20 | 3 | 4-18 | |
| 65 | - | 190 | 180 | 145 | 120 | 110 | 22 | 3 | 8-18 | |
| 80 | - | 178 | 195 | 160 | 135 | 121 | 22 | 3 | 8-18 | |
| 100 | - | 200 | 230 | 190 | 160 | 150 | 24 | 3 | 8-23 | |
| 125 | - | 254 | 270 | 220 | 188 | 176 | 28 | 3 | 8-25 | |
| 150 | - | 267 | 300 | 250 | 218 | 204 | 30 | 3 | 8-25 | |
| 200 | - | 292 | 375 | 320 | 282 | 260 | 38 | 3 | 12-30 | |
| 250 | - | 330 | 445 | 385 | 345 | 313 | 42 | 3 | 12-34 | |
| 300 | - | 390 | 510 | 450 | 408 | 364 | 46 | 4 | 16-34 | |
| 350 | - | 430 | 570 | 510 | 465 | 422 | 52 | 4 | 16-34 | |
| 400 | - | 530 | 655 | 585 | 535 | 474 | 58 | 4 | 16-41 | |
| 450 | - | 580 | 680 | 610 | 560 | 524 | 60 | 4 | 20-41 | |
| 500 | - | 630 | 755 | 670 | 612 | 576 | 62 | 4 | 20-48 | |
| 600 | - | 800 | 890 | 795 | 730 | 678 | 62 | 5 | 20-54 | |
| 700 | - | 900 | 995 | 900 | 835 | 768 | 68 | 5 | 24-54 | |
| 800 | 1000 | 1135 | 1030 | 960 | 876 | 76 | 5 | 24-58 | ||
不锈钢偏心半球阀是用于喷煤粉、控制法气体、含颗粒流体及粉沫固体介质输送的*设备，应用于冶金、选矿生产的煤粉喷吹阀。
特点：
1、直通型、单向密封、偏心式结构，特别用于煤粉喷吹的气固两相流介质，无阻挡流道贯通、不会出现积灰或卡死的现象。
2、开关轻便，开启时球与壳体脱离，无任何接触，启动扭矩小，转动灵活。关闭时，半球与阀座的挤切作用能除去密封面上的污物，密封严紧可靠。
3、密封面的偏心结构，使球面能自动补偿磨损，能保持阀门的密封，使用寿命长。
4、该阀门T型是属于耐磨硬密封球阀，它的密封副材料是特殊的，密封面要经过特殊耐磨处理。处理后表面硬度可达到HRC65-72度，故阀门的耐磨性能特别好。
5、阀门表面油漆，有常温和高温两种。高温用耐温600℃的进口漆，喷涂后，高温使用不烧漆、炭化、焦化现象、不变色。
主要性能参数及执行标准：
| 公称压力MPa | 1.0 | 1.6 | 2.5 | 4.0 |
| 阀门强度试验压力MPa | 1.5 | 2.4 | 3.8 | 6.0 |
| 阀门密封试验压力MPa | 1.1 | 1.8 | 2.8 | 4.5 |
| 适用温度℃ | ≤425℃ ≤325℃常温 | |||
| 阀体主要材质 | 铸钢、不锈钢 | |||
| 适用介质 | 煤粉、煤灰、含尘、气体、废渣、泥浆等 | |||
| 法兰标准 | JB/T82.1-94 | |||
| 阀门结构长度标准 | GB12221-89 | |||