波紋管截止閥也叫波紋管密封截止閥，通過自動滾焊焊接，在流體介質和大氣之間形成一個金屬屏障，確保閥桿零泄漏的設計。
波紋管截止閥內(nèi)部采用波紋管結構，不銹鋼的波紋管下端焊接在閥桿上，以防止工藝流體浸蝕閥桿。另一端置于閥體和閥蓋之間構成靜密封。采用雙重的密封設計若波紋管失效閥桿填料也會避免泄漏，波紋管焊于閥桿保持穩(wěn)定的運行性能，避免由于閥塞振動引起閥桿振動。zui適用于蒸汽、易燃、易爆、導熱油、高純度、有毒等介質的管路上。
該閥具有雙重密封裝置，除填料外還有不銹鋼波紋管作密封元件。適用于易燃易爆、滲透性強、帶放射性的介質，以及對密封性有嚴格要求的工業(yè)管路上。 The valve has double sealing device,besidespacking stainless bellows can be used as sealing element,The valve can be suitable to industrialpipeline of easily bursting,heavy osmosis,rsdioactivity media and of strictuy demandingfor sealing. 
主要零件材料Material for main parts | 零件名稱Produsttype | 閥體Body | 閥蓋Bonnet | 閥桿Stem | 波紋管Bollow | 閥瓣Disc | 閥桿螺母Yoke nut | 填料Packing | 墊片Washer | 手輪Handwheel | | WJ61H WJ41H-16C | WCB堆焊不銹鋼 | WCB | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni9Ti 堆焊硬質合金 | ZQA19-4 | 柔性石墨 | 纏繞式墊片 | KT35-10 | | WJ61H WJ41H-25 | | WJ61H WJ41H-40 | | WJ61H WJ41H-16P | ZG1Cr18Ni9Ti | 1Cr18Ni9Ti | 柔性石墨或聚四氟乙烯 | 纏繞式墊片或聚四氟乙烯 | | WJ61H WJ41H-25P | | WJ61H WJ41H-40P |
主要外形尺寸和連接尺寸Main external and connecting dimensions | DN | L | D | D1 | D2 | b | f | D0 | H | n-φz | | 1.6(PN16) | | 15 | 130 | 95 | 65 | 46 | 14 | 2 | 100 | 236 | 4-14 | | 20 | 150 | 105 | 75 | 56 | 16 | 2 | 100 | 242 | 4-14 | | 25 | 160 | 115 | 85 | 65 | 16 | 3 | 125 | 286 | 4-14 | | 32 | 180 | 140 | 100 | 76 | 18 | 3 | 125 | 295 | 4-18 | | 40 | 200 | 150 | 110 | 84 | 18 | 3 | 150 | 330 | 4-18 | | 50 | 230 | 165 | 125 | 99 | 20 | 3 | 150 | 350 | 4-18 | | 65 | 290 | 185 | 145 | 118 | 20 | 3 | 200 | 400 | 4-18 | | 80 | 310 | 200 | 160 | 132 | 20 | 3 | 200 | 430 | 8-18 | | 100 | 350 | 220 | 180 | 156 | 22 | 3 | 250 | 465 | 8-18 | | 125 | 400 | 250 | 210 | 184 | 22 | 3 | 250 | 505 | 8-18 | | 150 | 480 | 285 | 240 | 211 | 24 | 3 | 300 | 613 | 8-22 | | 200 | 600 | 340 | 295 | 266 | 24 | 3 | 420 | 714 | 12-22 | | 250 | 730 | 405 | 355 | 319 | 26 | 3 | 500 | 810 | 12-26 | | 300 | 850 | 460 | 410 | 370 | 28 | 4 | 670 | 910 | 12-26 |
|
環(huán)保在線