进口低温止回阀【德国进口止回阀】OLES奥莱斯品牌
【进口低温止回阀】结构说明：
低温止回阀的阀瓣呈圆盘状，绕阀座通道的转轴作旋转运动，因阀内通道成流线形，流动阻力比升蝶式止回阀小，适用于低流速和流动不常变化的大口径场合，但不宜用于脉动流，其密封性能不及升降式。蝶式止回阀分单瓣式、双瓣式和多半式三种，这三种形式主要按阀门口径来分，目的是为了防止介质停止流动或倒流时，减弱水力冲击。;低温止回阀瓣沿着阀体垂直中心线滑动的止回阀，内螺纹止回阀只能安装在水平管道上，在高压小口径止回阀上阀瓣可采用圆球。
The disc of cryogenic check valve is disc-shaped and rotates around the rotating axis of the seat passage. Because the inner passage of the valve is streamlined, the flow resistance is ***aller than that of the lifting butterfly check valve. It is suitable for large caliber situati*** with low flow rate and unstable flow, but it is not suitable for pulsating flow, and its sealing performance is inferior to that of the lifting butterfly check valve. Butterfly check valves are divided into three types: single-lobe, double-lobe and multi-half. These three types are mainly divided according to the valve caliber. The purpose is to prevent the hydraulic impact when the medium stops flowing or backflows. Check valves with low temperature check discs sliding along the vertical center line of the valve body. Internal threaded check valves can only be installed in horizontal pipelines, and discs with balls can be used on high pressure ***all caliber check valves.
【进口低温止回阀】详细说明
蝶式止回阀的阀体形状与截止阀一样(可与截止阀通用)，因此它的流体阻力系数较大。其结构与截止阀相似，阀体和阀瓣与截止阀相同。阀瓣上部和阀盖下部加工有导向套简，阀瓣导向简可在阀盏导向简内自由升降，当介质顺流时，阀瓣靠介质推力开启，当介质停流时，阀瓣靠自垂降落在阀座上，起阻止介质逆流作用。直通式蝶式止回阀介质进出口通道方向与阀座通道方向垂直；立式升降式止回阀，其介质进出口通道方向与阀座通道方向相同，其流动阻力较直通式小。低温止回阀：阀瓣围绕阀座内的销轴旋转的止回阀。碟式止回阀结构简单，只能安装在水平管道上，密封性较好。低温止回阀：阀瓣沿着阀体中心线滑动的阀门。管道式止回阀是新出现的一种阀门，它的体积小，重量较轻，加工工艺性好，是止回阀发展方向之一。但流体阻力系数比旋启式止回阀略大。此外，还有—些不适用于泵出口安装的止回阀，如底阀、弹簧式，Y型等止回阀。低温止回阀用途和性能规范。本阀门用于工业管道上作阻止介质逆流的装置。
【进口低温止回阀】用途：
依靠介质本身的流动而自动开、闭阀瓣，防止介质倒流。低温升降式止回阀适用于***、液态***、乙烯、二氧化碳、液氨、液氧、液氮、液氢等低温介质。低温阀门严格控制材料的化学成份及低温冲击韧性等力学性能指标。 低温升降式止回阀参数：公称压力：1.6Mpa、2.5Mpa、4.0MPa适用温度：-196℃～+80℃公称通径：10mm～250mm主体材质：阀体： CF8阀杆、阀瓣： 不锈钢填料、密封圈： 聚四氟乙烯
OLES希望让客户的行业更好地工作。为了实现这一点，我们相信我们的员工是我们成功的关键。我们非常信任我们的员 工，并***于他们。我们赋予他们工作责任感，激发创造力和主动性。我们教练和训练我们的人民，并奖励***的成就。
OLS很自豪地为***的工业客户提供服务。OLES流体成功原则使我们在过去取得成功，并将在未来继续这样做。它们是上海克瑞阀门的重要组成部分。凭借我们的***，***和创新，我们可以真正为我们的客户带来改变，并使他们的行业更好地工作，提高他们的效率，同时不断挑战他们和我们改进。因此，我们在未来的同事中寻找***，***和创新。 ***我们的***是我们尽我们的能力尽自己努力的骄傲。***就是要为我们的客户增加额外的空间，并以身作则。***也是关于一起工作，分享成功和乐趣。
OLES hopes to make the customer's industry work better. To achieve this, we believe that our employees are the key to our success. We trust our employees and invest in them. We give them a sense of resp***ibility, creativity and initiative. We coach and train our people and reward outstanding achievements.
OLS is proud to serve industrial customers worldwide. The OLES Fluid Success Principle has enabled us to succeed in the past and will continue to do so in the future. They are an important part of Shanghai Cree valves. With our passion, professionali*** and innovation, we can really bring about changes for our customers, make their industries work better, improve their efficiency, and c***tantly challenge them and us to improve. Therefore, we are looking for passion, professionali*** and innovation among our future colleagues. Passion Our passion is the pride of doing our best. Passion is to add extra space for our customers and set an example. Passion is also about working together, sharing success and fun.