進口高溫高壓波紋管截止閥性能描述 Performance description

高溫高壓波紋管截止閥閥體與閥蓋的連接采用壓力自緊密封結構，楔形的密封環（石墨夾不銹鋼絲）與四開環組合迫使密封環在高壓下變形實現可靠密封，壓力越高密封越可靠 RETZ The connection between the valve body and the bonnet of the high-temperature and high-pressure corrugated stop valve adopts a pressure self tightening sealing structure. The combination of wedge-shaped sealing ring (graphite with stainless steel wire) and four open rings forces the sealing ring to deform under high pressure to achieve reliable sealing. The higher the pressure, the more reliable the sealing will be

合理填料函設計，采用編結石墨、柔性石墨填料加兩端填料墊的組合，確保閥門無外泄漏 Reasonably design the stuffing box, and use the combination of braided graphite, flexible graphite packing and packing pads at both ends to ensure that the valve has no external leakage

閥桿倒密封設計可在特殊情況下方便換裝填料 The valve stem reverse sealing design can facilitate the replacement of packing under special circumstances

進口高溫高壓波紋管截止閥技術要求Applicable Standards

設計標準 Design Rating∶GB/T12224、API 602、EN12516；

結構長度Face to Face∶GB/T12221、ASME B16.10 EN558；

法蘭標準Flanged Ends∶EN1092-1、GB/T9113、ASME B16.5 

承插焊ASME B16.11 對焊端∶ASMEB16.25

檢查和試驗 Inspection & Testing∶EN12266、GB/T26480、API 598

規格尺寸 Size : 1/2～8"

公稱壓力 Nominal pressure：PN16～PN250、CL150～1500LB

適應溫度 Applicable temperature ：-40～500℃

波紋管的結構 Structure of bellows

閥芯結構 Valve core structure

錐面密封∶密封面不殘留雜質∶在趨于關閉時，密封面具有自清潔作用，實現線性密封 Conical sealing: no impurities remain on the sealing surface: when the sealing surface tends to close, the sealing surface has self-cleaning effect to achieve linear sealing

平衡雙閥瓣密封∶小閥瓣緩解壓力后帶動大閥瓣輕松打開 retz品牌 Balanced double disc sealing: small disc releases pressure and drives large disc to open easily

主要零部件材料 Main parts and materials