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硬密封伸縮蝶閥適用溫度≤80℃，用于石油、化工食品醫(yī)藥輕紡、造紙、電力、給排水、氣體管路上，作調節(jié)流量和截流介質的作用，具有補償管道熱脹冷縮的功能。
| 硬密封伸縮蝶閥用途User 本蝶閥適用溫度≤80℃，用于石油、化工食品醫(yī)藥輕紡、造紙、電力、給排 水、氣體管路上，作調節(jié)流量和截流介質的作用，具有補償管道熱脹冷縮的功能。 This butterfly valve，with the suitable temperatu re as=80℃，is used for the pipeline of petroleum，chemical，food，medicine，ight&textile，paper-makin9，water supply and drainage，gas for the flow adjustment and medium cut-off and holds the function to compensate heat-expansion cold-contraction of the pipeline 特點Characteristic 1、設計新穎、合理、結構*、重量輕、操作方便、起閉迅速。 2、本伸縮蝶閥既能起到調節(jié)流量和截流作用，又能補償管道溫差，所產生的熱脹冷縮功能，同時也便于安裝和拆卸，為一閥多用產品。 1 Brand-new and reasonable design,unique structure，light weight，easy operation，quick open-close. 2 This escopic butterfly valve can act as flow adjustment and cut-off and also compensate the heat-expansion cold-contraction of the pipeline caused due to temperature difference and is conveniently mountable and removable，as an one-valve muIti-purposes product 安裝注意事項Precautions in installation 1、本蝶閥安裝前必須清洗內腔雜物。 2、本閥可有一定范圍內伸縮，安裝前必須松開伸縮部位的密封墊壓蓋，然后待本閥門與管道所需要的長度后，再鎖緊伸縮密封壓蓋。 1 Clear out the impurities inside of the internal cavity before to install this butterfly valve. 2 This valve is stretchable in a certain range and，before installation，the sealing pad of the stretching part shall be loosened and，then，whlength is set for both valve and pipeline，tightened. |  |
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硬密封伸縮蝶閥法蘭連接尺寸和主要外形尺寸Flange size and main dimensions
| 公稱通徑DN | L | L2 | L1 | D | D | Z-d | H1 | H2 |
| 50 | 158 | 168 | 178 | 165 | 125 | 4-19 | 80 | 155 |
| 60 | 164 | 174 | 185 | 185 | 145 | 4-19 | 80 | 155 |
| 80 | 168 | 178 | 200 | 200 | 160 | 8-19 | 97 | 173 |
| 100 | 181 | 193 | 220 | 220 | 180 | 8-19 | 110 | 220 |
| 125 | 196 | 203 | 250 | 250 | 210 | 8-19 | 125 | 255 |
| 150 | 198 | 213 | 285 | 285 | 240 | 8-23 | 143 | 258 |
| 200 | 213 | 228 | 340 | 340 | 295 | 8-23 | 170 | 310 |
| 250 | 230 | 242 | 395 | 395 | 350 | 12-23 | 200 | 355 |
| 300 | 241 | 258 | 445 | 445 | 400 | 12-23 | 225 | 380 |
| 350 | 256 | 278 | 505 | 505 | 460 | 16-23 | 253 | 422 |
| 400 | 287 | 312 | 565 | 565 | 515 | 16-28 | 281 | 486 |
| 450 | 295 | 325 | 615 | 615 | 565 | 20-28 | 308 | 497 |
| 500 | 310 | 330 | 670 | 670 | 620 | 20-28 | 335 | 560 |
| 600 | 343 | 364 | 780 | 780 | 725 | 20-31 | 390 | 715 |
| 700 | 394 | 414 | 895 | 895 | 840 | 24-31 | 483 | 782 |
| 800 | 405 | 428 | 1015 | 1015 | 950 | 24-34 | 543 | 882 |
| 900 | 410 | 435 | 1115 | 1115 | 1050 | 28-34 | 606 | 925 |
| 1000 | 530 | 560 | 1230 | 1230 | 1160 | 28-37 | 655 | 1000 |
| 1200 | 570 | 602 | 1455 | 1455 | 1380 | 32-40 | 778 | 1087 |
| 1400 | 630 | 665 | 1675 | 1375 | 1590 | 36-43 | 912 | 1350 |
| 1600 | 720 | 730 | 1915 | 1915 | 1820 | 40-49 | 1032 | 1475 |
| 1800 | 800 | 845 | 2112 | 2115 | 200 | 44-49 | 1154 | 1670 |
| 2000 | 910 | 1010 | 2325 | 2325 | 2230 | 48-49 | 1295 | 1780 |
硬密封伸縮蝶閥
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