(充气式)气动圆顶阀

(充气式)进口气动圆顶阀 性能参数 Performance description

(充气式)进口气动圆顶阀阀芯是一个半球体，气动执行器通过摆臂驱动半球体转动。在开闭过程中，半球体与橡胶密封圈保持有约0.2mm一0.4mm的间隙，因此避免了它们之间的接触磨损。圆顶阀在完全关闭状态时，橡胶密封圈自动充气，膨胀后就紧紧裹持住半球体，从而形成一条可靠的密封环带，阻止物料的流动 retz品牌 The (inflatable) inlet pneumatic dome valve core is a hemisphere, and the pneumatic actuator drives the hemisphere to rotate through the swing arm. During the opening and closing process, the clearance between the hemisphere and the rubber seal ring is about 0.2mm-0.4mm, so the contact wear between them is avoided. When the dome valve is fully closed, the rubber seal ring automatically inflates, and after expansion, it tightly wraps the hemisphere, forming a reliable seal ring to prevent the flow of materials.

充气式圆顶阀 Inflatable dome valve

扇型圆顶阀 Sector dome valve

公称压力∶1.0MPa ，密封试验∶1.1MPa， 强度试验∶1.5MPa

介质温度∶≤250℃

气缸的工作压力为0.4MPa一0.6MPa，密封圈的充气压力为0.4MPa一0.6MPa且高于输送压力0.15MPa，使用洁净、干燥、无油压缩空气 The working pressure of the cylinder is 0.4MPa - 0.6MPa, and the inflation pressure of the seal ring is 0.4MPa - 0.6MPa, which is 0.15 MPa higher than the delivery pressure. Clean, dry, oil-free compressed air is used

1.在关闭指令下，气动执行器通过摆臂驱动半球体转动90°，当摆臂上的调整螺栓压住二位三通机械滑阀的顶杆时，气源对橡胶密封圈充气。压力表显示出密封圈内的压力 Under the closing command, the pneumatic actuator drives the hemisphere to rotate by 90 ° through the swing arm. When the adjusting bolt on the swing arm presses the ejector rod of the two position three-way mechanical slide valve, the air source inflates the rubber seal ring. The pressure gauge shows the pressure in the seal ring

2.在打开指令下，气动执行器通过摆臂反向驱动半球体转动90°，在摆臂上的调整螺栓脱离二位三通机械滑阀的顶杆瞬间，密封圈中的气从二位三通机械滑阀的排气孔排出，密封圈回缩，保证了半球体转动过程中与橡胶密封圈之间无接触运动 Under the opening command, the pneumatic actuator reversely drives the hemisphere to rotate by 90 ° through the swing arm. At the moment when the adjusting bolt on the swing arm breaks away from the ejector pin of the two position three-way mechanical slide valve, the air in the seal ring is discharged from the exhaust hole of the two position three-way mechanical slide valve, and the seal ring retracts, ensuring no contact movement between the half sphere and the rubber seal ring during rotation

适用介质气体、液体、半流体及固体粉末 Suitable for medium gas, liquid, semi liquid and solid powder

结构特点/Structural Features

圆顶阀由于其独特的闭合和密封步骤，避免了阀门的动静件的摩擦，且阀门开启时，料口全流通无阻挡，关闭时密封严实，橡胶密封圈采用特种橡胶制造具有耐高温、耐腐蚀、耐老化等优点 Due to its unique closing and sealing steps, the dome valve avoids the friction between the moving and static parts of the valve. When the valve is opened, the full flow of the material port is unblocked, and when it is closed, the seal is tight. The rubber seal ring is made of special rubber, which has the advantages of high temperature resistance, corrosion resistance, aging resistance, etc

主要零部件材料 Main parts and materials