德标对夹式蝶阀
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德标对夹式三偏心硬密封蝶阀
| 特点 对夹式蝶阀结构简单、体积小、重量轻。蝶阀有弹性密封和金属密封两种密封型式。弹性密封阀门，密封圈可以镶嵌在阀体上或附在蝶板周边。 三偏心金属密封蝶阀的密封原理： 三偏心蝶阀具有双向无气泡紧密壮关闭性能。这种几何形状保证阀瓣密封只是在关闭位置时才与阀体阀座接触，因此不会产生摩擦或磨损，并且产生一种扭矩使得弹性密封具有足够的“焊接”性能，确保密封接触的均匀一致性。 |  |
主要连接尺寸
| 压力 | NPS | DN | L | K | Z-φd | d |
| PN1.0 | 2 | 50 | 43 | 125 | 4-18 | 99 |
| 2-1/2 | 65 | 46 | 145 | 4-18 | 118 | |
| 3 | 80 | 48 | 160 | 8-18 | 132 | |
| 4 | 100 | 54 | 180 | 8-18 | 156 | |
| 6 | 150 | 57 | 240 | 8-22 | 211 | |
| 8 | 200 | 64 | 295 | 8-22 | 266 | |
| 10 | 250 | 71 | 350 | 12-22 | 319 | |
| 12 | 300 | 81 | 400 | 12-22 | 370 | |
| 14 | 350 | 92 | 460 | 16-22 | 429 | |
| 16 | 400 | 102 | 515 | 16-26 | 480 | |
| 18 | 450 | 114 | 565 | 20-26 | 530 | |
| 20 | 500 | 127 | 620 | 20-26 | 582 | |
| 24 | 600 | 154 | 725 | 20-30 | 682 |
| 压力 | NPS | DN | L | K | Z-φd | d |
| PN1.6 | 2 | 50 | 43 | 125 | 4-18 | 99 |
| 2-1/2 | 65 | 46 | 145 | 4-18 | 118 | |
| 3 | 80 | 48 | 160 | 8-18 | 132 | |
| 4 | 100 | 54 | 180 | 8-18 | 156 | |
| 6 | 150 | 57 | 240 | 8-22 | 211 | |
| 8 | 200 | 64 | 295 | 12-22 | 266 | |
| 10 | 250 | 71 | 355 | 12-26 | 319 | |
| 12 | 300 | 81 | 410 | 12-26 | 370 | |
| 14 | 350 | 92 | 470 | 12-26 | 429 | |
| 16 | 400 | 102 | 525 | 16-30 | 480 | |
| 18 | 450 | 114 | 585 | 20-30 | 548 | |
| 20 | 500 | 127 | 650 | 20-33 | 609 | |
| 24 | 600 | 154 | 770 | 20-36 | 720 |
| 压力 | NPS | DN | L | K | Z-φd | d |
| PN2.5 | 2 | 50 | 43 | 125 | 4-18 | 99 |
| 2-1/2 | 65 | 46 | 145 | 8-18 | 108 | |
| 3 | 80 | 48 | 160 | 8-18 | 132 | |
| 4 | 100 | 54 | 190 | 8-22 | 156 | |
| 6 | 150 | 57 | 250 | 8-26 | 211 | |
| 8 | 200 | 64 | 310 | 12-26 | 274 | |
| 10 | 250 | 71 | 370 | 12-30 | 330 | |
| 12 | 300 | 81 | 430 | 16-30 | 389 | |
| 14 | 350 | 92 | 490 | 16-33 | 448 | |
| 16 | 400 | 102 | 550 | 16-36 | 503 | |
| 18 | 450 | 114 | 600 | 20-36 | 548 | |
| 20 | 500 | 127 | 660 | 20-36 | 609 | |
| 24 | 600 | 154 | 770 | 20-39 | 720 |
