答案绝对是否定的!在结构上，如果空间有限，闸阀依靠介质压力对表面进行严密密封，从而达到无泄漏的效果。在开启和关闭时，阀瓣和阀座密封面总是相互接触和摩擦，这导致密封面磨损。当闸阀即将关闭时，管道前后的压力差很大，这也造成了更严重的密封面损坏。闸阀的结构比截止阀复杂。在相同口径的情况下，闸阀在外形上比截止阀要高一些、窄一些。此外，闸阀阀杆分为上升和不上升两类，截止阀阀杆不上升。工作原理截止阀的启闭阀杆呈上升状态，即手轮转动时，手轮随着阀杆上下运动。闸阀手轮转动，阀杆上下运动，手轮本身保持在同一位置。它们的流速不同。 Gate valves have to be full opened or closed, while globe valves do not. Globe valves have a defined inlet and outlet direction, while gate valves do not. In addition, the gate valve has only two states: fully open or fully closed,and the long travel of the disc results in a longer switching time.The time a globe vale needs is muchshorter. Most importantly, thedisc of the globe valve can stop at a certain place inthe valve body to do flow regulation. The gate valve can only be used for cut-off and has nosuch function. Performance differences Globe valves can be used for both cut-off and flow regulation. The fluid resistance of globe valve is relatively high, and it takes more effort to open and close, but because the distance between the valve plate and the sealing surface is short, the opening and closing stroke is short. When gate valve is fully open, the medium flow resistance in the valve body channel is almost 0, so the gate valve opening and closingwon’t be very laborious. But the gate plate is far from the sealing surface, opening and closing time is longer. Xiamen Dervos is an API Certified check valve manufacturing and trading company that specializes in the production of various kinds of valve. In addition to all kinds of common valves such as gate valves, globe valves, plug valves and butterfly valve , we also produce otherunconventional valves as long as our customers file their requirements.To learn more about our industry-leading products, contact us today.
在乙烯热解过程中，输送管线阀和脱焦阀(简称TLV和DV)是必不可少的设备，其性能对乙烯热解过程的运行和安全具有重要影响。首先，这里是我们的传输线阀门(TLV)和去焦阀(DV)的特点:DN从3到54英寸不等，我们的传输线阀门和去焦阀可以与几乎所有类型的乙烯裂解器配合使用，包括CBL(SEI)， BYC(Wison)， SRT(Lummus)， USC(S&W)， Pyrocrack(Linde)， SC-II(KRB)和其他市场上流行的类型。传输管线阀门和消焦阀在处理高温、污垢条件、高密封性要求和高可靠性要求的非常苛刻的环境中运行，从安全角度来看，它们是至关重要的。因此，我们关心产品的设计和选择。主要研究了以下几个方面的性能:首先，重点研究了抗结焦性能，特别是在开启位置和开关过程中的抗结焦性能;其次是抗颗粒性，主要是指密封面被防止被颗粒覆盖。减少压力损失，以免导致密封失效或妨碍作业;最后，我们特别注意阀门的可持续服务和易于维护。十多年来，我们一直是阀门行业的杰出参与者。我们位于中国，在自主生产阀门的同时，我们与一系列优秀的阀门供应商合作，以满足您的各种需求。 If you have any needs of or interests in these two kinds of special valves, welcome to contact us for more product information. Or if there is anything we can help with, we shall be more than pleased to do so.
时间过得真快!德沃斯度过了又一个充满挑战但富有成效的一年，并准备进入阀门市场的第13个年头。是时候庆祝它的生日了。像往常一样，我们抽出一天时间来参加德沃斯的大活动。这一天，我们称之为快乐的一天，是由相当多的活动。我们租了一个大房子，里面有各种各样的娱乐设施，比如卡拉ok，私人影院，AR游戏等等。更重要的是，宽敞的厨房和用餐区也有利于我们的第一个活动-集体烹饪!假定最棘手的部分——你知道，参与者是一群城市白领，他们被所有的外卖应用程序喂饱了，你还能对他们有什么期望?——结果证明不仅仅是令人惊叹:辣椒油鱼片、肉丸、炖蘑菇和令人印象深刻的海鲜锅，由Dervos的创始人埃里克提供。说到创始人，另一位Ken带来了一个精致的13号蛋糕，漂亮可口。再加上精美的甜点，那顿饭真的为快乐的一天奠定了美好的开端。 Then we move to the recreational area. If you see someone screaming BACK OFF! STAY AWAY FROM ME! wielding gamepad, shooting monsters on screen, don’t worry, that’s just Jona playing AR games. She’s probably going to win the most dedicated player prize if there were any. One more game I’d like to note is ring toss. The ring needs to circle the bottle and win you the gift coupon beneath it. I know it’s kinda old-stuff, but when you attend another game to win extra chances for ring toss if you don’t gain anything at first round, it would be more fun. The gamer needs to spin 5 circles and flip a bottle cap about 2 meters away at once, with one eye covered all the time. It was crazy dizzy, difficult and fun, cause you could never hit it accurately after 5 circles as you thought the cap was there but it was actually not. In the evening, after a string of group games like Guess the song name and Charade, the climax of the day came as the projection screen started playing a surprising video for West, also the game host, whose journey with Dervos has rang the 10-year bell and hasn’t anticipated for this part. After the video, Eric and Ken, on behalf of the big family, awarded him a secret anniversary gift. Now, let’s call it a day, or it would be better to be ‘let call it 13 years’. If Dervos were a 13-year-old boy, it is when the boy explores the world curiously and energetically. It is like a rising sun from the skyline, we’ll see his sun ray, glory and feel his warmth. Dervosers are striving for this day.
