译文：
大多用户，在工业管道控制过程中都不可避免的会遇到管道卡堵等因介质引起的调节阀故障现象。目前市场上的调节阀产品品种繁多，却又让很多用户感觉无何适从。怎样才能有效解决上述问题？ 必须从根本原因分析。当管道中有较硬的颗粒介质时非常容易造成阀门卡堵。所以阀门必须具备切断此类介质的功能才能根本解决卡堵问题。 而传统中应用较多的直行程调节阀很难做到这一点。 而有生产的HAND汉德控制阀针对这一难题研发出高品质的专业产品－HAND系列超薄V形球阀，从而从根本上解决上述卡堵难题。 HAND汉德控制阀产品的阀芯采用特殊材料制作，具有非常高的硬度；阀芯与阀座成回转运动，因而能轻松有效的切断杂质！

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原文：
Most users in the industrial pipeline control process are inevitably encountered channel card blocking and so because of media control valve failure caused the phenomenon. Currently on the market a wide variety of valve products, but feel free to many users how to follow. How can we effectively address these problems? Must be from the root-cause analysis. When the pipeline when a hard particle medium is likely to cause the valve card blocking. Therefore, the valve must have cut off the function of such media can not solve the problem card blocking. The application of more traditional straight trip valve is difficult to do this. While production HAND Hand control valve developed for the problem of high-quality professional product-HAND series of ultra-thin V-shaped ball, which a fundamental solution to problems blocking the card. HAND Hand control valve spool of products made of special material with very high hardness; valve core and valve seat into rotary motion, thus effectively cutting off impurities easily!