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)動方式：手動、氣動、電動、液動等 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 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優(yōu)良性能，由于在設(shè)計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， 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補償功能，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產(chǎn)生的相對位移得到充分補償，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. 試驗壓力 Test prssure 技術(shù)規(guī)范 Technical specification 主要零件和材質(zhì) Main parts and materials
壓力等級
Pressure grade試驗壓力 Test pressure 公稱壓力 PN
Nominal pressure殼體試驗
Sheil test正密封試驗
Sealing test反密封試驗
Sealing test氣密封試驗
Air seal test0.6 0.9 0.66 - 0.6 1 1.5 1.1 - 0.6 1.6 2.4 1.76 - 0.6 設(shè)計依據(jù) Design reference GB系列 GB series 設(shè)計標(biāo)準(zhǔn) Design standard GB/T12238 結(jié)構(gòu)長度 Face to face GB/T12221 連接法蘭 End flange GB/T9113 GB/T17241.6 試驗和檢驗 Test & inspection GB/T13927 序號
NO零件名稱
Accessor name材質(zhì) Material GB系列 1 閥體 Body QT450-10 0.5Cr0.5Ni 2 蝶板 Disc QT450-10 0.5Cr0.5Ni 3 閥座 Seat 堆焊, 13Cr, STL, F316 4 密封圈 Sealing ring EPDM, NBR, PTFE 5 壓板 Plate Q235, F304, F316, F316L 6 閥桿 Stem 20Cr13, 304, 316, 316L 7 圓銷軸 Taper pin 20Cr13, 304, 316, 316L 8 軸套 Bush bearing 自潤滑復(fù)合軸套F2 9 填料壓蓋 Gland WCB, CF8, CF8M 10 填料 Packing 石墨 橡膠 11 螺柱 Bonnet bolt 35#, 304, 316, 316L 12 螺母 Nut 45#, 304, 316, 316L
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蝶閥;球閥;閘閥;止回閥;旋塞閥;截止閥;調(diào)節(jié)閥;電站閥;水力控制閥;法蘭;柱塞閥;冶金閥
法蘭式軟密封蝶閥系列 D342X/F 產(chǎn)品信息
關(guān)鍵詞：硬密封蝶閥
