这是德沃斯有史以来最大的阀门。这是Dervos 2017年为孟买市政公司制造的DN3750蝶阀，是一个政府项目。对于DN3750这样大的规模，该项目的运行具有特殊性和挑战性。由于其扭矩高达989954N。M，最好是自动驱动而不是手动操作。但由于它的用途是扩展电力，手动操作是我们唯一的选择。在准确计算扭矩后，我们最终提出了一个解决方案，即DN3750将由四个变速箱组合运行，从而将输入扭矩降低到令人难以置信的117N.m。我们做得太棒了!对于这种阀门，我们已经进行了许多试验，包括但不限于以下:我们对阀座环做了DP，对法兰、阀瓣和阀杆做了UT，对焊接做了RT。此外，我们还进行了盘的强度测试，喷漆的黏附测试，以及将变速箱合并到3米深的水中72小时的IP68潜水测试。 And movement tests were also witnessed, it took about 9 hours from fully open to fully close position. Eventually,The completed valve was made out as about 58 tons and 82.4 CBM. Besides the remarkable work we did, we're so proud that its successful put-in-use was even reported by the local newspaper in Mumbai. As you can conclude, Dervos is indeed a professional and reliable valve provider. Contact us today, and get you the quality products and outstanding services Dervos offers.

这是12月11日，在这些连续的寒冷和沉闷的冬日中是一个罕见的无云的下午。“现在天气有利，留在办公室是一个巨大的废物，不是吗？”DVS所有者Eric Wong建议。然后，出乎意料的是，我们停止了打字，包装的员工，并继续前往额外的长足行人，几乎穿过整个市中心。您可能会从图像中看到，走道螺旋向上沿着钢框架进入树林。随着我们爬得更高的，在浮动方式上行走挑战和恐怖，但美丽的海岸线也出现在地平线上。正如我们汉语总是说吸引风景总是更高。但遗憾的是，我们在一个禁飞区内，我们的水酮禁止升空，下面第一张照片上的Thelaugh变成了相机的皱眉。相当搞笑！随着阳光下山，3小时的快步走路终于走到了黎明。 The glistening sweaton our brow recorded this an joyful afternoon. Though we didn't finish the whole footpath (because it's way too long), we may regard this end asbeing archived, and some day in the future, perhaps we will have another chance to continue this unfinished trip. 2020 is also approaching an end. Don't forget to say goodbye to this unforgettable year and say hello to the coming unknown 2021. And, definitely, Dervos will be there for you.

气动蝶阀是新开发的一种耐用节能蝶阀。该蝶阀采用三偏心设计、弹性密封、多级硬、软密封加工等新技术，使蝶阀更加可靠，密封时无泄漏。气动执行机构采用弯臂转换结构，具有输出扭矩大、体积小、性能稳定可靠等特点。它可以与阀门定位器一起使用。或与电磁阀配合使用，可实现比例调节或开关控制，适用于气体、固体颗粒、液体等介质。气动蝶阀可广泛应用于造纸、石化、化工、冶金、电力、环保、石油、轻工、楼宇自动化及其他工业部门的自动化控制系统。气动蝶阀的安装和维护。1.安装蝶阀时，应注意阀体上的流向标识，避免流向错误而影响使用。2. Beforethe use ofthepneumatic butterfly valve, you should flush the pipeline with the valve fully open to avoid the sealing surface being scratched by debris such as welding slag. 3. Generally, bypass piping will be set next to the butterfly valve so that when the butterfly valve is serviced or replaced, the bypass piping can be used to carry out the process as usual. 4. Pneumatic butterfly valve can be installed vertically within 180°。And do not install the pneumatic actuator upside down. 5. If you find that the stuffing box is leaking during use, tighten the gland bolts to solve the problem. Here atDervos, we’re a leading provider for products inindustrial valve, and we’re certified with theCE, ISO, API and other institutions. We strive to offer the best quality products and customer service through our extensive experience. Contact us today for more information—we can’t wait to work with you!

选择阀门密封面材料时需要考虑六个主要因素。密封表面是阀门最关键的工作表面，密封表面的质量直接影响阀的使用寿命，密封面材料是保证密封表面的质量的重要因素。因此，在选择阀门密封表面材料时，应考虑以下因素。耐腐蚀性能。“腐蚀”是密封件的表面受培养基损坏的过程。如果表面以这种方式损坏，则不能保证密封性;因此，密封面材料必须耐腐蚀。材料的耐腐蚀性主要取决于其拉伸强度及其化学稳定性。抗磨性。“磨损”是密封表面相对运动期间由摩擦引起的损坏。 This damage will inevitably lead to the destruction of the sealing surface, therefore, the sealing surface material must have good anti-scuffing properties, especially the gate valve. The abrasion resistance of the material is often determined by the internal properties of the material. Erosion resistance."Erosion"refers thatthe medium flows through the sealing surface at high speed, so that the sealing surface is damaged. This damage is more obvious in the high temperature, high pressure steam medium used in the globe valve, safety valve. the sealing damage has a great impact, therefore, erosion resistance is also one of the important requirements of the sealing surface material. It should have acertain hardness, and the hardness decreases greatly under the specified working temperature. The coefficient of linear expansion of the sealing face and the body material should be similar, which is more important for the structure of the inlaid seal, in order to avoid additional stress and lose under high temperature. For use at high temperatures, there should be adequate resistance to oxidation, thermal fatigue, andthermal cycling issues. In the current situation, it is very difficult to find a sealing surface material that fully meets the above requirements. For example, for valves used in high speed media, specific attention should belaidto the requirements of erosion resistance of the sealing surface; when the medium contains solid impurities, sealing surface materials with higher hardness should be selected. Here at Dervos, we’re a leading provider for products inindustrial valve, and we’re certified with the CE, ISO, API and other institutions. We strive to offer the best quality products and customer service through our extensive experience. Contact us today for more information—we can’t wait to work with you!

项目名称：Ecofuel Innovation项目年份：2017年介绍：2017年，我们提供了一个主要的闸门阀门，向安全浮雕阀门到一个环境项目潜艇，这是一个新兴加拿大球员倾向性技术。它是从固体废物的可持续柴油生产项目的绝佳项目.DERVOS为该燃料创新的BEA部分感到骄傲，为其提供136套可靠和优秀的阀门。段球控制阀还称为V型球阀，在球阀中最受调节性能。加上V形狭缝和金属座之间的缩小功能，这种球阀特别适用于培养基，固体颗粒和浆料。刀闸阀随着中等车辆的木质碎片和浆料，刀闸阀呈现出这种条件的良好的减小性能。通过电动执行器远程控制的三通分体式流动阀，该Valvecan将流量分成TwoStreams，Angachieve精确控制过程进行流体。安全阀符合API520和API526，除了对幼位的压力，温度和过压保护能力的压力，术后阀门仍然存在。

就像凸耳或晶圆型蝶阀之间存在不同的优势，2件式和3件式球阀也有它们的边缘。以下是考虑两种类型之间的选择时的一些重要因素。1.设计2.终端连接3.安装4.性能5.易于维护设计作为他们的名称暗示，2件式球阀有两个不同的碎片 - 一件是端部连接和身体和第二件具有另一端连接以及阀门装饰。3件式球阀具有三个主体件 - 2端和保持阀装饰的中心部分。三个部分围绕三个部分螺栓固定在一起。由于其设计，端部连接，两件式球阀在它们可以制造的端部连接类型中受到限制。它们通常限于螺纹端部连接。三件球阀具有摆动设计，允许焊接端部连接，因此插座和对接焊接端通常是可行的。安装简单的设计使2 PC球阀成为许多行业中最常见的类型之一。 Due to this simple design, the 2-pc ball valve is a lightweight solution for manual and automatic fluid or gas control. If the end connection is threaded, the installation of the 3-pc type is also very straightforward. When it is necessary to weld the end, in order to prevent the valve seat and the sealing ring from being heat damage, the device have to be partially disassembled during the installation. Performance The simplistic design of 2-pc valve allows itself, generally, a better Cv value. The seats, seals, applications and other parts in performance are more decisive than the design type. Ease of Maintenance The oscillating design of the 3-piece valve allows the body section to remain in place while the valve section swings up and out of the line for cleaning or servicing. This feature makes the 3-pc stand out from the 2-pc, whose design does not allow for any maintenance. Applications where the media is thick or viscous, or where lines must be cleaned between batches, are almost always the domain of the 3-pc valve. summary Based on the above information, the consideration of 2-pc or 3-pc must include various factors, including the length of the production line through its medium, flow, weight, and maintenance plan. The good news is that our technical sales staff will be more than happy to discuss these factors so that you can make the right decision. Xiamen Dervos has served countless industrial, commercial, and municipal clients for over 10 years. We have supplied thousands of common valves, customized products, electric and pneumatic actuators and so on to customers worldwide. If you would like to know more about our valves, services, or other products, any message or inquiries are welcomed.