这种双偏心橡胶密封蝶阀设计用于确保在关闭位置上360°密封接触均匀。Batley Valve®Steadseal阀门集成了一个夹紧在叶片边缘的橡胶密封,旨在确保在关闭位置上360°密封接触均匀。双偏心动作使叶片进出阀体阀座,磨损和阀座扭矩最小。这种阀门特别适用于需要紧密关闭和控制的场合。对于开启/关闭服务,阀门可以手动操作,也可以通过自动执行机构操作。双偏心动作使叶片进出阀座,磨损和阀座扭矩最小,延长阀座使用寿命,降低阀门整体扭矩。无论是球墨铸铁还是碳钢的阀体,都有许多不同的衬里来保护,以适应不同的应用场合。密封圈易于更换。该阀门适用于BS4504、BS10、BS1560、ANSI或DIN的法兰之间的通过螺栓安装。叶片的流线型设计改善了流线,减少了水头损失。 PTFE-faced self lubricating Glacier DU bearings are normally fitted and adequately provide for the high loading, low friction requirements. Stainless steel seat are provided for general applications but for strictly noncorrosive services such as clean air, body bore is coated with an anti-corrosive surface treatment. The resilient seat is an high-quality nitrile rubber ring attached with the vane edge with a steel clamping ring. Alternative seals are viton, butyl, neoprene, ethylene propylene.