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高性能蝶閥
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產品名稱

高性能蝶閥

設備介紹
我公司的蝶閥結構設計合理、安全性能可靠、安裝尺寸小、適用于大口徑的閥門。開關迅速、90°往返回轉,驅動力矩小,適用于截斷、接通、調節管路中的介質,具有良好的流體控制特性和關閉密封性能。
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產品描述

高性能蝶閥    High-performance bufferfly valve

 

DC5811   雙偏心高性能蝶閥

DC5812   三偏心硬密封蝶閥

    DC5811系列高性能蝶閥的閥板與閥座具有獨特的結構設計,具有優良的切斷性能和耐久性能,是一種用途廣泛的調節閥。

    DC5812系列三偏心蝶閥具有雙向無氣泡緊密關閉性能。這種幾何形狀保證閥板密封只是在關閉位置時才與閥體閥座接觸,因此不會產生摩擦或磨損,并且產生一種扭矩使得彈性密封具有足夠的接觸面積,類似于截止閥的錐面密封,確保密封接觸的均勻一致性。

 

    The DC5811 series high-performance butterfly valve has a unique structural design of the valve plate and valve seat, which has excellent shut-off performance and durability, and is a widely used regulating valve.

    The DC5812 series triple eccentric butterfly valve has a two-way non-bubble tight closing performance. This geometry ensures that the valve plate seal is in contact with the valve body and valve seat only in the closed position, so there is no friction or wear, and a torque is generated so that the elastic seal has a sufficient contact area, similar to the cone surface of a globe Sealing to ensure uniform and consistent sealing contact.

雙偏心結構圖

規格

 
 
 
 

產品說明   product description                                                                                                                                                     三偏心蝶閥工作原理 

工作原理  principle of operation                                   

DC5812三偏心蝶閥具有雙向無氣泡緊密關閉性能。這種幾何形狀保證閥板只是在關閉位置時才與閥體閥座接觸,不會產生摩擦或磨損,并且產生一種扭矩使得彈性密封具有足夠的接觸面積,類似于截止閥密封的一個錐面密封,確保密封接觸的均勻一致性。

DC5812 triple eccentric butterfly valve has two-way tight closing performance without air bubbles. This geometry ensures that the valve plate is in contact with the valve body and valve seat only in the closed position without friction or wear, and generates a torque that allows the elastic seal to have a sufficient contact area, similar to a tapered surface of a globe valve seal Sealing to ensure uniform and consistent sealing contact.

 

三偏心幾何形狀  the triple offset geometry

偏心1 閥軸位于閥座軸后面,使得密封能夠完全緊密環繞接觸整個閥座。

Offset1 The valve shaft is located behind the valve seat shaft, allowing the seal to fully and completely contact the entire valve seat.

偏心2 閥軸中心線偏離管道和閥門中心線,這就避免閥門開啟和關閉的干擾。

Offset2 The centerline of the valve shaft is offset from the centerline of the pipeline and valve, which avoids the interference of valve opening and closing.

偏心3 閥座錐體軸偏離閥軸中心線,這樣可以在開啟和關閉過程中消除摩擦作用,并且實現環繞整個閥座的均勻一致的壓縮密封效果。

Offset3 The valve seat cone axis is offset from the valve shaft centerline, which can eliminate friction during opening and closing, and achieve a uniform compression and sealing effect around the entire valve seat.

 

三偏心結構

產品說明product description                                                                                                                        三偏心蝶閥結構說明 valve construction

采用三偏心結構,適用于高溫高壓等復雜工況并要求嚴密切斷的場合,閥門開閉過程無摩擦,開啟力矩小,扭力密封,介質作用力越大密封性能越好。

Adopting triple eccentric structure, it is suitable for high temperature and high pressure and other complicated working conditions and requires strict close. The valve opens and closes without friction, the opening torque is small, the torque is sealed, and the greater the medium force, the better the sealing performance.

 

 

 

閥座和閥體采用一體式結構,閥座密封面堆焊高強度合金材料,保證密封面可靠性,產品使用壽命長,基本做到零維護。

The valve seat and valve body adopt an integrated structure, and the sealing surface of the valve seat is welded with high-strength alloy material to ensure the reliability of the sealing surface, the product has a long service life, and basically has zero maintenance.

 

 

 

 

 

 

多種密封結構選擇:有多層次符合結構、多層次全金屬結構及整體金屬結構密封圈??筛鶕煌墓r進行選擇。多層次密封結構使密封圈整體具有一定的柔性,能使密封圈與閥座貼合更好,從而保證泄漏等級達到ANSI B16.104-2000 Ⅵ。

A variety of sealing structure options: there are multi-level conforming structures, multi-level all-metal structures and overall metal structure sealing rings. Can choose according to different working conditions. The multi-layered seal structure makes the seal ring as a whole have a certain flexibility, which can make the seal ring and the valve seat fit better, thereby ensuring that the leakage level reaches ANSI B16.104-2000 Ⅵ

臺階式結構設計能有效防止閥桿飛出,保證閥門安全性,整體式的閥桿,并采用高強度的不銹鋼材料,閥門承受的允許壓差大。

The stepped structure design can effectively prevent the valve stem from flying out, which greatly guarantees the safety of the valve. The integral valve stem is made of high-strength stainless steel.

 

 

 

 

 

 

 

 

 

 

閥桿與閥板傳動方式采用圓柱銷偏置結構,防止閥桿由于鉆孔導致強度降低的狀況,從而間接提高了圓柱銷的剪切強度,并提高了閥門安全可靠性。

The transmission method of the valve stem and the valve plate adopts a cylindrical pin offset structure, which prevents the decrease in strength of the valve stem due to drilling, thereby indirectly increasing the shear strength of the cylindrical pin and improving the safety and reliability of the valve.

 

 

 

 

閥桿保護止推環結構,防止了閥桿與閥體間的死角位置被顆粒介質或易結焦介質結垢、結塊,從而將閥桿抱死。反向流向時,可有效防止閥桿因介質作用力使閥桿產生徑向位移,導致反向泄漏量增大。

The valve stem protects the thrust ring structure, preventing the dead angle position between the valve stem and the valve body from being fouled or agglomerated by particulate or easily coking media, thereby holding the valve stem to death. In the reverse flow direction, it can effectively prevent the valve stem from causing radial displacement due to the force of the medium, resulting in an increase in reverse leakage.

軸封結構采用耐高溫的非金屬材料能有效防止介質中所含雜質顆粒進入軸承,從而杜絕了軸承因雜質顆粒結塊將閥桿卡死或抱死的現象。

The shaft seal structure uses high temperature resistant non-metallic materials to effectively prevent foreign particles contained in the medium from entering the bearing, thereby preventing the bearing from being stuck or locked due to agglomeration of foreign particles.

 

 

 

 

 

 

填料系統采用碟簧動態加載補償結構,閥體填料函采用滾擠壓,閥桿采用納米光整,能避免填料處絕對不外漏,達到TA-LUFT標準要求。

The packing system adopts a disc spring dynamic loading compensation structure, the valve body stuffing box adopts roll extrusion, and the valve stem adopts nanometer finishing, which can avoid absolutely no leakage at the packing place and meet the TA-LUFT standard requirements.

 

 

 

 

零件尺寸加工精度高,密封圈現場可以自由調整和更換。

The part size is processed with high precision, and the seal ring can be adjusted and replaced freely on site.

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