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三偏心多層次蝶閥
我們公司生產的零泄漏三偏心蝶閥依靠安裝在蝶板上的復合不銹鋼密封圈來實現真正的零泄漏,零泄漏是通過蝶板上密封圈的彈性來實現的，該密封圈的彈性（如右圖）是通過其徑向的壓縮和柔動產生的。密封圈與閥座接觸面為斜錐面。密封圈與閥座之間的接觸角產生輕微的“楔式效應”，使密封圈發生柔動和徑向壓縮。正由于閥座與密封圈之間均勻接觸以及密封圈的柔性，使得加載在閥座上的載荷均勻，從而用最小的扭矩實現最嚴密的切斷。扭矩產生的彈性使得閥門嚴密關斷，而與介質流向或介質力無關。
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產品詳細
三偏心多層次蝶閥/Three Eccentric Multiple Layers Butterfly Valve
三偏心幾何圖/The triple offset geometry
- 第一個偏心軸偏離密封面中心線
- 第二個偏心軸偏管路及閥門中心線
- 第三個其獨特的偏心閥座斜錐角與管路中心的夾角，這樣，使得閥座與密封圈在門整個開關過程中完全脫離。這種結構既利用了凸輪效
應，又完全消除了摩擦，去除了磨損和泄漏的可能。 - The first eccentric, shaft deviated from the centerline of sealing face.
- The second eccentric. Shaft deviated from the centerline of pipe and valve.
- The third eccentric, the distinctive included angle between oblique taper angle of eccentric seat and centerline of pipe, thus making the seat completely disengaged from the sealing ring during the whole process of open and close. This structure not only uses cam effect, but also eliminates the possibility of abrasion and leakage.
我們公司生產的零泄漏三偏心蝶閥依靠安裝在蝶板上的復合不銹鋼密封圈來實現真正的零泄漏
Our produced the zero leakage three eccentric butterfly valve is implemented by the composite stainless steel sealing ring mounted on the disc.
零泄漏是通過蝶板上密封圈的彈性來實現的，該密封圈的彈性（如右圖）是通過其徑向的壓縮和柔動產生的。密封圈與閥座接觸面為斜錐面。密封圈與閥座之間的接觸角產生輕微的“楔式效應”，使密封圈發生柔動和徑向壓縮。正由于閥座與密封圈之間均勻接觸以及密封圈的柔性，使得加載在閥座上的載荷均勻，從而用最小的扭矩實現最嚴密的切斷。扭矩產生的彈性使得閥門嚴密關斷，而與介質流向或介質力無關。
Zero leakage is implemented by the elastic sealing ring mounted on the disc. The elasticity of sealing ring(see fig. Right) is produced by its radial compression and flexibility. The contact surface between the sealing ring and seat is an oblique cone. The contact angle between them gives slight' wedge effect', making the sealing ring producing flexibility and radial compression. The even contact between the seat and sealing ring, and the closest cutoff by the lowest torque. The elasticity produced by the torque makes the valve closely cut off, regardless of the flow direction or pressure of medium.
特點/Characteristic
- 復合金屬密封圈的彈性特性使得閥門具有零泄漏性能。
- 扭矩密封確保閥門持續的雙向零泄漏特性。
- 直角旋轉無摩擦設計是通過一個獨特的三偏心原理來實現，它消除90開關旋轉中閥座與密封圈之間的摩擦。
- STL一體式硬面閥座可滿足許多工況要求，使用壽命，維修方便。
- 一體式鑄造（板焊）閥體，結構長度符合1SO5752、ASMEB16.10和AP1609。可替換高性能蝶閥以及其他種類的閥門，安裝簡單、靈活
- 全金屬結構加上零泄漏性能，使閥門有具有‘本質防火安全’特性。
- 閥桿防吹出設計安全可靠，完全符合API609的要求。
- 閥桿桿上的閥位指示器以及頂部安裝法蘭有利于蝶板位置指示。
- 三偏心蝶閥的閥桿采用一根通軸式結構，閥桿與蝶板連接采用鍵或銷鍵組合。
- Elastic property of composite metal sealing ring to perform zero leakage
- Torque seal to ensure persistent two-way zero leakage.
- The design of right-angled rotation with zero friction is implemented by the distinctive triple eccentric principle. Lt eliminates the friction between the seat and sealing ring in90 rotation.
- STL one-piece hard-surface seat may adapt to many working conditions, which is featured by long service life and easy maintenance.
- One-piece cast(sheet welded)body, face-to-face dimensions conforming to ISO5752,ASMEB16.10and APl609,replacement to high performance butterfly valves and other types of valves, easy and flexible installation.
- Lntrin sical fireproof property thanks to all metal structure and leak-tight performance
- Anti-blowout stem for high dependability, completely conforming to APl609.
- The valve position indicator on the stem and the flange mounted at the top are in favor of the indication of disc position.
- The stem of triple eccentric butterfly valve is a shaft, stem and disc are connected by of pin-key combination.
法蘭連接蝶閥/Flange butterfly valve
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