德標(biāo)對(duì)夾式三偏心硬密封蝶閥
特點(diǎn) 對(duì)夾式蝶閥結(jié)構(gòu)簡(jiǎn)單、體積小、重量輕。蝶閥有彈性密封和金屬密封兩種密封型式。彈性密封閥門,密封圈可以鑲嵌在閥體上或附在蝶板周邊。 三偏心金屬密封蝶閥的密封原理: 三偏心蝶閥具有雙向無氣泡緊密壯關(guān)閉性能。這種幾何形狀保證閥瓣密封只是在關(guān)閉位置時(shí)才與閥體閥座接觸,因此不會(huì)產(chǎn)生摩擦或磨損,并且產(chǎn)生一種扭矩使得彈性密封具有足夠的“焊接”性能,確保密封接觸的均勻一致性。 |
主要連接尺寸
壓力 | 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 |
壓力 | 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 |
壓力 | 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 |