问:嗨。我在你们的网站上看到了蝶阀。其中一些装有手柄，一些装有变速箱，它们看起来都差不多大小。这两种操作是等价的吗?蝶阀什么时候应该使用变速箱?答:齿轮箱蝶阀和手柄蝶阀都是需要手动操作的蝶阀，所以也可以统称为手动蝶阀。对于小型蝶阀，这两种操作方式可以通用。不同之处在于蝶阀的直径较大。对于口径≤DN200的蝶阀，适用手动操作;DN200范围内的蝶阀也可采用齿轮箱操作。 For butterfly valves of DN200 ormore,Gearbox operation is generally recommended. The reason is that as the calibre of the butterfly valve increases, so does the torque. When the calibre exceeds DN200, it will be very hard to operate with the handle, and the larger the calibre, the harder it will be to operated by a handle. Therefore, if the caliber is DN200 or more, it is better to use a gearbox. When Dervos chellenged to manufacture a butterfly valve of DN3750, we used 4 gearbox to drive the gaint guy. For more details welcome to click the picture to read the story. Dervos is a leading valve manufacturer and provider of engineered products for different industries in China. If you’re looking for professional feasible solutions, check out our vast range of high-quality valves which covers gate valves, ball valves, butterfly valves, as well as other control valves and more. For more information regarding our high-quality products, contact us today!
我相信，那些处理阀门的人并不陌生，这些蝴蝶阀门的名称。然而，Dervos发现，仍然有许多朋友不能讲述同心蝴蝶阀和蝶形阀之间的差异，有些人甚至可以认为它们是不同的名称。但这不是。本文将向您介绍同心蝶阀与蝶形阀之间的差异。同心蝴蝶阀在阀的结构形式之后ID.除同心蝴蝶阀外，还有单偏心蝶阀，双偏心蝶阀，三重偏心蝶阀几个。他们是指阀体中蝴蝶板中心的圆形位置。在结构方面，同心蝶阀的特征在于阀杆轴，蝶形板中心和体中心处于相同位置。同心蝴蝶阀结构简单，通常是软座椅。橡胶或PTFE或其他弹性材料是最常见的;同心蝶阀具有非常好的密封性能，并且可以实现零泄漏。但是由密封材料本身的限制，同心蝶阀只能通过普通温度和低压环境。 Its not recommended to use them in high temperature and high pressure. Wafer butterfly valve is named according to the butterfly valve's connection method. In addition toWafer, there are also flange connections,clamp connection,socket-ed,welded and so on. Wafer butterfly valves can be soft-sealed ormetallic-sealed; they can be ofconcentric or eccentric.A concentric butterfly valves may be either clamped or flanged. Aconcentric butterfly valve may be aWafer connection, and aWafer butterfly valve may also be ofconcentric construction. Therefore, the concentric and Wafer are two different butterfly valve classifications, the two are actually not comparable. Choose the correct butterfly valve according to the different working conditions, and that’s all. Dervos is a leading valve manufacturer and provider of engineered products for different industries in China. If you’re looking for professional feasible solutions, check out our vast range of high-quality valves which covers gate valves, ball valves, butterfly valves, as well as other control valves and more. For more information regarding our high-quality products, contact us today!
蝴蝶阀可以用于热水吗？在以前的文章中，我们已经向您介绍给您，蝶阀适用于淡水，污水，海水，盐水，蒸汽，天然气，食品，药品，油等管道，需要完全密封，零泄漏在气体测试中，高寿命和工作温度从-10度到150度。天气蝴蝶阀可用于热水管道，实际上，钥匙位于阀座密封表面材料的蝴蝶阀体，与热水触角接触。我们谈论的热水通常在70℃以上的水。如果您在这些温度下使用硬封蝶阀阀门，那么就没有问题。但如果它是一个带有橡胶密封座的柔软密封蝶阀，可用于热水？如果您在互联网上搜索答案，您将看到许多不建议使用热水中的软密封蝶阀。如果它在长时间暴露于热水，柔软密封蝶阀的橡胶座的原因将更快地变得更快。阀门的密封性能将损坏，从而缩短了阀门的使用寿命。该陈述不是问题，橡胶材料的理论温度范围为-20〜150℃，但由于各种厂商生产橡胶质量水平，挡板情况，这种温度范围在热水环境中显着下降，当然。 However, the soft seal butterfly valve is not completely inadequate for hot water piping. High temperature resistant rubber can be used, which is much more effective and lasts longer. And hard-sealed butterfly valves, ball valves, gate valves and globe valves can also be used instead. Dervos is a leading valve manufacturer and provider of engineered products for different industries in China. If you’re looking for professional feasible solutions, check out our vast range of high-quality valves which covers gate valves, ball valves, butterfly valves, as well as other control valves and more. For more information regarding our high-quality products, contact us today!
