品牌：RETZ瑞茨/我們一直致力于流體控制和測控領域的持續創新，始于2005……
(法蘭，對夾)氣動硬密封蝶閥采用三偏心多層次金屬密封結構,無機械磨損，可達到零泄漏，有優良的雙向密封功能,是用于石油、化工、冶金、電力、食品、醫藥、給排水、氣體輸送等不同介質的管路上作調節流量、截斷或接通流體的理想裝置The imported pneumatic hard sealing butterfly valve (flange, clamp) adopts a three eccentric multi-level metal sealing structure, without mechanical wear, can achieve zero leakage, and has excellent bidirectional sealing function. It is the best device for regulating flow, cutting off or connecting fluids on pipelines with different media such as petroleum, chemical, metallurgy, power, food, medicine, water supply and drainage, and gas transportation
進口氣動硬密封蝶閥產品詳情 Product details
(法蘭，對夾)氣動硬密封蝶閥采用三偏心原理結構，閥座與碟板在啟閉時幾乎無摩擦，密封是采用軟硬金屬片層疊組成，具有金屬密封和彈性密封的雙重優點，無論在低溫和高溫情況下，均具有優良的密封特性 RETZ (Flange, wafer) The imported pneumatic hard seal butterfly valve adopts the three eccentric principle structure. The valve seat and disc plate almost have no friction when opening and closing. The seal is composed of soft and hard metal sheets, which has the dual advantages of metal seal and elastic seal. It has excellent sealing characteristics no matter in low temperature or high temperature
進口氣動硬密封蝶閥結構特點 Structural characteristics
三偏心結構：閥桿軸線與蝶板密封面間偏置一個尺寸A，并與閥體通道軸線偏置一個尺寸B，閥座回轉軸線與閥體通道軸線形成一個偏心角α，故形成三偏心。蝶閥從0°～90°開啟時，蝶板密封面會在開啟的瞬間立即脫離閥座密封面，在其90°～0°關閉時，只有在關閉的瞬間，其蝶板圓錐形密封面才會接觸并壓緊閥座圓錐形密封。所以閥座與蝶板上的密封面之間無任何摩擦，去除了磨損和泄漏的可能性 Three eccentric structure: one dimension A is offset between the valve stem axis and the sealing surface of the butterfly plate, and one dimension B is offset from the valve body passage axis. The rotation axis of the valve seat forms an eccentric angle with the valve body passage axis α， Therefore, three eccentricities are formed. When the butterfly valve is opened from 0 ° to 90 °, the sealing surface of the butterfly plate will immediately disengage from the sealing surface of the valve seat at the moment of opening. When the butterfly valve is closed from 90 ° to 0 °, the conical sealing surface of the butterfly plate will contact and compress the conical sealing surface of the valve seat only at the moment of closing. Therefore, there is no friction between the valve seat and the sealing surface on the butterfly plate, eliminating the possibility of wear and leakage.
扭矩密封：三偏心的結構使蝶閥關閉時，其密封副兩密封面之間的密封比壓由外加于閥桿的驅動力矩產生。不僅消除了常規彈性進口氣動硬密封蝶閥3.jpg閥座彈性材料老化、冷流、彈性失效等因素造成的密封比壓降低和消失，而且可以通過外加驅動力矩的改變，實現對其密封比壓的任意調整，從而使三偏心蝶閥的密封性能改善，蝶閥的使用壽命也大大提高 Torque sealing: when the butterfly valve is closed due to the tri eccentric structure, the sealing specific pressure between the two sealing surfaces of the sealing pair is generated by the driving torque applied to the valve stem. It not only eliminates the reduction and disappearance of sealing specific pressure caused by aging of elastic materials, cold flow, elastic failure and other factors of conventional elastic valve seats, but also realizes the arbitrary adjustment of sealing specific pressure through the change of external driving torque, thus improving the sealing performance of triple eccentric butterfly valves and greatly increasing the service life of butterfly valves.
軟硬層疊式金屬密封結構：蝶板密封圈采用軟硬層疊式不銹鋼片和柔性石墨板的密封面，使其具有金屬硬密封和彈性密封的雙重優點，無論在低溫和高溫工況下均具有優良的密封性能 Soft and hard laminated metal sealing structure: the butterfly plate sealing ring adopts the sealing surface of soft and hard laminated stainless steel sheet and flexible graphite plate, which makes it have the dual advantages of metal hard sealing and elastic sealing, and has excellent sealing performance no matter under low temperature or high temperature conditions
雙向密封：因密封面錐角小于密封材料的磨擦角，蝶板關到密封位置時立即實現自鎖，并能承受一定的反向壓力沖擊 Two way sealing: since the cone angle of the sealing face is less than the friction angle of the sealing material, the butterfly plate will automatically lock when it is closed to the sealing position and can withstand a certain reverse pressure impact
防火結構：全金屬結構本身具有火災的特性 Fireproof structure: the all metal structure itself has the characteristics of fire safety
密封圈：密封圈由壓板夾在蝶板上，易于安裝、調節和更換 Sealing ring: the sealing ring is clamped on the butterfly plate by pressing plate, which is easy to install, adjust and replace
閥桿的上、下部位裝有軸套，防止磨損和粘連，提高了使用壽命 The upper and lower parts of the valve stem are equipped with