LN85W系列波紋管調節閥
簡要描述：LN83W/85W/87W系列波紋管單座控制 閥，基于LN83/85/87系列控制閥單座壓力平 衡結構基礎上增加波紋管密封結構，耐壓的彈 性不銹鋼波紋管置于支座部件內與閥桿連接在 一起，與填料組成雙重密封，消除介質外漏隱 患。適用于壓差不大的劇毒、易燃、易爆、易 揮發和稀有貴金屬介質的調節
詳細介紹
LN83W/85W/87W系列波紋管單座控制閥，基于LN83/85/87系列控制閥單座 壓力平衡結構基礎上增加波紋管密封結構，耐壓的彈性不銹鋼波紋管置于支座部件 內與閥桿連接在一起，與填料組成雙重密封，消除介質外漏隱患。適用于壓差不大 的劇毒、易燃、易爆、易揮發和稀有貴金屬介質的調節。
LN83W/85W/87W series , based on LN83/85/87 series structures, Sealing bellows are increased. The pressure-proof and elastic stainless steel bellows is tightly seal-welded to the valve stem and upper adapter ring. For safety reasons the construction includes a standard stem sealing packing as back-up in case of bellows failure. LN83W/85W/87W series are available for process fluids when stem leakage can't be tolerated at all(e.g. toxic fluids).
公稱通徑/Nominal Size | DN40-DN200 使用溫度/Operating temperature |
公稱壓力/Nominal Pressure | 美洲American standard : PN150(ANSI 900),260(ANSI 1500),420(ANSI2500); 歐洲體^/European standard : PN160,250 |
流量 | 等百分比、線性/ Equal percentage,Linear 可調比/Rangeability : 50 :1 |
泄漏?/Seat leakage | B/T 17213.4-2005/IEC 60534-4:2006 IV級 Class IVaccording to GB/T 17213.4-2005/IEC 60534-4:2006 |
公稱通徑 | DN40 ~ DN300 |
公稱壓力 | PN16/25/40/63/100;CL150(PN20)/300(PN50)/600(PN110) |
操作溫度 | -46℃~ 350℃ |
流量特性 | 等百分比，線性，快開 |
可調比 | 30:1 |
泄漏等級 | ANSI B16.104: IV、V、VI |
閥體材質 | WCB/WCC/LCB/LCC;WC6/WC9;CF8/CF8M;4A/5A等 |
閥內件材質 | WCB/CF8/CF8M等 |
填料材質 | 304+F46/316+F46/304+PFA/316+PFA |
