通用铸钢闸阀

欧菲硬密封耐磨球阀专为承受高温、高压和磨损性介质的极端工况设计。采用高品质合金钢制造，通过先进的硬化技术增强球体和阀座的耐磨性。硬密封设计保证了在苛刻环境下的卓越密封性能。此外，该阀门结构坚固，操作维护简便，极大降低了维护成本，是石油化工、电力及矿业等重工业领域的理想选择。

欧菲C型球阀采用双偏心设计：C球回转中心（轴心）与C球密封面几何中心（球心）、C球回转中心与阀座密封中心的双偏心设计。阀杆在两个平面上的偏移产生C球旋转+平移的双矢量凸轮运动。阀门关闭时，C球与阀座产生凸轮楔紧的扭矩密封。扭矩密封的动力来自于手柄、齿轮、执行机构，从机械原理上确保不依赖弹簧或工艺压力而实现严密关断。

The quality of forged steel parts is higher than that of cast steel parts, and they can withstand large impact forces. Their plasticity, toughness, and other mechanical properties are higher than those of cast steel parts. The diameter of forged steel stop valves is generally not more than DN80, and most of them are reduced-diameter designs. Compared with cast steel stop valves of the same diameter, the flow rate is slightly lower, but the pressure and temperature range they can withstand are higher than those of cast steel valves, and their sealing performance is much better than that of cast steel stop valves, and their service life is longer. Like other stop valves, they are subject to the restrictions of the flow direction of the medium. Forged steel stop valves can be divided into straight-through stop valves (type stop valves) and direct-flow stop valves (Y-type stop valves) according to installation positions.