Easy access piston seal cover

       便捷活塞密封盖）

          Eye bolt closures

       悬吊螺栓闭合

          Double stem seals                                     

       双杆密封

          Self adjusting TFE seats

       自动调节聚四氟乙烯阀座

          Floating ball

       浮球

          Foot pads

       脚垫

          Drain plugs

       排液塞

          Vent Valve

       排放阀