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 and assembling method, makes the valve in the reverse pressure when the relative displacement be compensated fully, either forward or reverse pressure, therefore thisbutterfly valve are under full differential pressure to achieve zero leakage.
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:-196~350℃
驅(qū)動方式:手動、氣動、電動、液動等
公稱壓力:0.6~4.0MPa
公稱通徑:DN100~4500mm
Applicable media: water, gas, oil, gas and acid and alkali corrosive medium