1、结构简单，制造和维修比较方便。 2、工作行程小，启闭时间短。 3、密封性好，密封面间磨擦力小，寿命较长。
当通过阀门的压降为管路压力的20%左右时，美国克雷恩截止阀就能够高效应用在频繁操作和节流的应用场合。
Crane globe valves are highly efficient for services requiring frequent operation and throttling when pressure drop across the valve is about 20% of inlet pressure.
分析了平衡阀的特点，认为为改善液体管路系统的调节功能，用平衡阀取代截流孔板、闸阀及截止阀势在必行。
Discusses the feature of balance valves, considers that balance valves should be used in place of the orifice, gate valves and stop valves in order to improve regulating function of liquid pipe.
针型阀：是仪表测量管路系统中重要组成部分，主要有截止阀和球阀，其功用是作开启或切断管道通路用。
Needle valve: it is an important instrument measuring piping system components, mainly cut-off valve and ball valve, its purpose is to open or cut off access by pipeline.
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