启闭

• Distinctive red handle indicates “ open / close ” and direction of flow at a distance
  特别的红色手柄能够远距离表示“启闭”和流向。
• These gate valves are ideal for closing and opening the flow in water pipelines
  本闸阀暗转在介质为水的管路上，作为启闭设备使用。
• Distinctive black handle indicates “ open / close ” and direction of flow at a distance
  特别的黑色手柄能够远距离表示“启闭”和流向。
• The load experiments on using the hoist for the plate sluice gates to lift the arch sluice gate
  卷扬式平面闸门启闭机启闭表孔弧门的负荷试验
• Numerical simulation and analysis of the 3 - d flow and opening - closing processes in control valve
  调节阀内三维流动与启闭过程的数值模拟及分析
• Flexibility and hosing test for small water tight hatch cover ( water tight door and window )
  水密小舱口盖（水密门、窗）启闭灵活性、冲水检查。
• Gate valves are normally used for on - off service and are not recommended for throttling service
  闸阀通常用于启闭应用场合，不建议用于节流应用。
• Tightness test ( opening and closing test , emergency opening and closing test ) for cargo hatch cover
  货舱舱口盖密性试验（启闭试验、应急启闭试验） 。
• The valve is used on the pipeline as an opening and closing device for granular and erosion media
  本阀适用于颗粒状冲蚀性介质的管路上作启闭装置。
• Gate valves are normally used for on - off service . they are not recommended for throttling service
  闸阀通常用于启闭应用场合。不适用于节流应用场合。