進口高性能雙向壓燃氣蝶閥性能描述 Performance description

高性能雙向壓燃氣蝶閥采用三偏心結構，即在普通金屬硬密封雙偏心蝶閥的基礎上增加了一個角度偏心。這個角度偏心的主要作用是∶使閥門在開啟或關閉動作的過程中，密封環與閥座之間的任意一點都會迅速脫開或接觸，做到密封副之間真正的"無摩擦"，極大地延長了閥門的使用壽命RETZ The valve uses a three-cam structure, that means an angular cam is added to a common metal hard seal bi-cam butterfly valve. This angular cam functions; to have any point between the seal ring and the seat ring quickly separated off or contacted during the valve open or close action to leave a true "non-friction' between the seal pairs, greatly extending the valve life.

技術要求Applicable Standards

Design Code 設計標準:API 609 Catalog B & ASME B16.34

Face to face 結構長度:API 609 Category B, ANSI B16.10

ISO 5752 & BS EN 558 Series 3 / 13 / 14 / 19

DIN 3202 F4 / BS 515

Connection Standard 連接標準:NPS 2"~24" ASME B16.5

Above 24" ASME B16.47 A / B

Testing / Inspection 試驗與檢驗:API 598

規格尺寸 Size : 2～40"

公稱壓力 Nominal pressure：PN10～160, CL150～900LB

適應溫度 Applicable temperature ：-40～425℃

連接方式：對夾，法蘭，凸耳，焊接 Connection mode: wafer, flange, lug, welding

進口高性能雙向壓燃氣蝶閥偏心結構說明Triple eccentric structure

●偏心1∶閥桿旋轉中心線與閥座中心線偏離一定距離，保證密封面的完整性；Eccentric 1: The centerline of rotation axis/stem and seat deviate from each other for a certain distance to ensure the integrity of the sealing surface;

●偏心2∶閥桿旋轉中心線與閥體中心線偏離一定距離，降低閥門啟閉時密封副之間的摩擦力 Eccentric 2: The centerline of rotation axis/stem and body deviate from each other for a certain distance to reduce the friction between the sealing components when open and close the valve.

●偏心 3∶閥體中心線與閥座圓錐密封面中心線偏離一定角度，使閥門開啟或關閉時，蝶板密封環與閥座之間迅速脫離或接觸，密封副之間無摩擦、無卡擠 Eccentric 3: The centerline of valve body and conical seat sealing face deviate from each other for a certain angle to ensure the sealing ring of the disc can be separated or touched with seat rapidly so that friction and squeeze will not exist between the sealing components.

產品主要特點Productmainfeatures

●閥門采用三偏心結構，即在普通金屬硬密封雙偏心蝶閥的基礎上增加了一個角度偏心。這個角度偏心的主要作用是∶使閥門在開啟或關閉動作的過程中，密封環與閥座之間的任意一點都會迅速脫開或接觸，做到密封副之間真正的"無摩擦"，極大地延長了閥門的使用壽命retz品牌 The valve uses a three-cam structure, that means an angular cam is added to a common metal hard seal bi-cam butterfly valve. This angular cam functions; to have any point between the seal ring and the seat ring quickly separated off or contacted during the valve open or close action to leave a true "non-friction' between the seal pairs, greatly extending the valve life.

●徑向動平衡密封系統，通過優化設計，蝶板的進出口兩側受力近似平衡，閥門達到進出口雙向可靠的密封性能的同時，有效降低了閥門的開啟力矩 The radial dynamic balance sealing system, through optimization design, the forces on both sides of the inlet and outlet of the butterfly plate are approximately balanced, the valve achieves two-way reliable sealing performance at the inlet and outlet, and effectively reduces the opening torque of the valve (about 2/3 of the ordinary butterfly valve)

●蝶板密封環由片狀不銹鋼和碳纖維材料復合而成，不銹鋼片為主密封，碳纖維為輔助密封，這種雙重密封結構，使閥門密封更可靠，密封泄漏等級可達ASME B16.104 VI級或ISO5208 A級；The seal ring of the butterfly plateis made up with sheet stainless steel and carbon fiber by way of compounding, with the stainless steel sheet as the primary seal and thecarbon fiber as the assisting one. This dual-sealing structure makes the valve more reliably sealed and the seal leaking grade up to ASME B16.104 VI or ISO5208A.

●碳纖維夾層材料與普通供熱煤閥的橡膠石棉板、石墨等材質的夾層相比，具有更環保、更耐磨、更耐沖刷、更可靠等特點、可達20萬次無故障啟閉 Compared to the sandwich of the common heat supply butterfly valve made of rubber asbestos plate, graphite etc materials, that of the carbon fiber sandwich features more environmental protection, more 'wearable, more resisting to scouring and more reliable, up to 200,00 times of non-failure open-close.

●通過優化設計，使閥體具有高的強度，有效防止“負壓”造成的閥體變形，保證閥門運行的安全和可靠性 RETZ By means of optimized design, the vvalve is made with a high strength toeffectively preven the body deformation caused by" negative pressure'and ensure the valve to safely and reliably work.

●填料涵設有真空軸向密封裝置，采用柔性石墨、成型石墨、PTFE等填料組合和活載式填料，使填料密封系統始終保持穩定 The packing box is set with a vacuum axial sealing device and flexible graphite, formed graphite, PTFE etc. packing combination and live-loaded packing is used so as to have the sealing system of the packing kept stable all the time.

主要零部件材料 Main parts and materials