行业新闻

原文
Water tightness of the valve technology Play a role in whether the valve is the valve seals the basic requirements. In practice, there are a variety of seal types, such as soft seal, seal, valve plates seal, valve seal, face seal, wire seal, and so on. Regardless of what kind of sealed form, it can not affect the sealing effect. In the past, we have used part of the butterfly valve plate sealing, in theory, the butterfly's biggest advantage is that once the sealing gasket failure, without dismantling the valve can be replaced online. However, in the practical application of the water supply companies, the advantages of this valve is difficult to be reflected. Therefore, if the line is not only need to replace the rubber ring pipe open at both ends of the valve, the water pipe emptying. Meanwhile, the replacement of the apron can not be sealed test can not determine the replacement effect. Therefore, the choice of the valve, be sure to pay attention to the valve seal form, combined with their practical application, check the valve seal.
原文来自：http://www.shushuifa.org

是由上海一环流体控制设备有限公司提供的阀门新闻，中文译文仅供参考，以下提供站内导航搜索：

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译文：
阀门是否起到密封作用是对阀门的基本要求。在实际应用中，密封有多种型式，如软密封、硬密封、阀板密封、阀体密封、面密封、线密封等等。不管采用什么样的密封形式，均不能影响到密封效果。过去，我们曾经使用过一部分阀板密封的蝶阀，从理论上讲，这种蝶阀的最大优点是一旦密封胶圈失效，不用拆装阀门，可在线更换。但是，在供水企业实际应用中，这种蝶阀的优点很难体现出来。因此，如果在线更换胶圈不仅也需要把阀门两端的管道拆开，将管道的水排空。同时，更换后的胶圈也无法进行密封试验，无法确定更换效果。故在选择阀门时，一定要注意阀门的密封形式，并结合各自的实际应用情况，检查阀门的密封效果。

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