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法蘭式軟密封蝶閥系列 D342X/F

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產(chǎn)品簡(jiǎn)介

產(chǎn)品特征Spericfications適用介質(zhì):水、氣、油品、天然氣和酸堿腐蝕性介質(zhì)適用溫度:-196~150℃驅(qū)動(dòng)方式:手動(dòng)、氣動(dòng)、電動(dòng)、液動(dòng)等公稱壓力:0

詳細(xì)介紹


產(chǎn)品特征 Spericfications

適用介質(zhì):水、氣、油品、天然氣和酸堿腐蝕性介質(zhì)

適用溫度:-196~150℃

驅(qū)動(dòng)方式:手動(dòng)、氣動(dòng)、電動(dòng)、液動(dòng)等

公稱壓力:0.6~1.6MPa

公稱通徑:DN50~4500mm

Applicable media: water, gas, oil, gas and acid and alkali corrosive medium

Applicable temperature: -196~150℃

Driver: manual, pneumatic, electric, hydraulic, etc

Nominal pressure: 0.6~1.6MPa

Nominal size: DN50~4500mm


產(chǎn)品結(jié)構(gòu)特點(diǎn) Construction features

本雙向蝶閥采取多層次三偏心金屬硬密封結(jié)構(gòu),不僅具有普通多層次三偏心金屬硬密封蝶閥的全部?jī)?yōu)良性能,由于在設(shè)計(jì)上合理地減小了徑向偏心值,在關(guān)閉狀態(tài)下閥桿所受力矩較小,處于靜平衡,同時(shí), 蝶板密封圈采用了優(yōu)質(zhì)碳素材料與高韌性不銹鋼組成多層次結(jié)構(gòu),不僅柔中有剛能與閥座保持密合,而且具有非常良好的自動(dòng)補(bǔ)償功能,特別在較大溫差的工況條件下,可以消除由此引起的結(jié)構(gòu)變形對(duì)密封性能的影響,又由于在加工和裝配過程采用了予應(yīng)力方法,使閥門在反向受壓時(shí)產(chǎn)生的相對(duì)位移得到充分補(bǔ)償,因此本蝶閥不論正向或反向受壓,均能在全額壓差下達(dá)到泄漏量為零。

This bi-directional take multi-level triple eccentric metal hard seal structure, not only has ordinary multi-layer all excellent properties of triple eccentric metal hard 

seal butterfly valve, due to the design reduces the radial eccentricity value reasonably, in closed valve stem torque is small, in static equilibrium, at the same time, the butterfly plate sealing ring with the high quality carbon materials with high toughness of multi-layer stainless steel structure, not only in the soft just can maintain the best closed with the valve seat, and have a very good self-compensation function, especially under the condition of the working condition of large temperature difference, can eliminate the resulting structure deformation influence on sealing performance, and because of adopted to stress during the process of processing andassembling method, makes the valve in the reverse pressure when the relative displacement be compensated fully, either forward or reverse pressure, therefore this butterfly valve are under full differential pressure to achieve zero leakage.



試驗(yàn)壓力 Test prssure

壓力等級(jí)
   Pressure grade
試驗(yàn)壓力 Test pressure
公稱壓力    PN
   Nominal pressure
殼體試驗(yàn)
   Sheil test
正密封試驗(yàn)
   Sealing test
反密封試驗(yàn)
   Sealing test
氣密封試驗(yàn)
   Air seal test
0.60.90.66-0.6
11.51.1-0.6
1.62.41.76-0.6


技術(shù)規(guī)范 Technical specification

設(shè)計(jì)依據(jù)    Design referenceGB系列 GB series
設(shè)計(jì)標(biāo)準(zhǔn) Design standardGB/T12238
結(jié)構(gòu)長(zhǎng)度 Face to faceGB/T12221
連接法蘭 End flangeGB/T9113  GB/T17241.6
試驗(yàn)和檢驗(yàn) Test & inspectionGB/T13927


主要零件和材質(zhì) Main parts and materials

序號(hào)
   NO
零件名稱
   Accessor name
材質(zhì) Material
GB系列
1閥體 BodyQT450-10  0.5Cr0.5Ni
2蝶板 DiscQT450-10  0.5Cr0.5Ni
3閥座 Seat堆焊, 13Cr, STL, F316
4密封圈 Sealing ringEPDM, NBR, PTFE
5壓板 PlateQ235, F304, F316, F316L
6閥桿 Stem20Cr13, 304, 316, 316L
7圓銷軸 Taper pin20Cr13, 304, 316, 316L
8軸套 Bush bearing自潤滑復(fù)合軸套F2
9填料壓蓋 GlandWCB, CF8, CF8M
10填料 Packing石墨  橡膠
11螺柱 Bonnet bolt35#, 304, 316, 316L
12螺母 Nut45#, 304, 316, 316L

 



關(guān)鍵詞:硬密封蝶閥
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