译文：
膜阀的主要优点是其操纵机构与介质通路隔开，不但保证了工作介质的纯净，同时也防止管路中介质冲击操纵机构工作部件的可能性。此外，阀杆处不需要采用任何形式的单独密封，除非在控制有害介质中作为安全设施使用。隔膜阀中，由于工作介质接触的仅仅是隔膜和阀体，二者均可以采用多种不同的材料，因此该阀能理想地控制多种工作介质，尤其适合带有化学腐蚀性或悬浮颗粒地介质。 　　英标隔膜阀地工作温度通常受隔膜和阀体衬里所使用材料地限制，它的工作温度范围大约为－50～175度。隔膜阀结构简单，只由阀体、隔膜和阀盖组合件三个主要部件构成。该阀易于快速拆卸和维修，更换隔膜可以在现场及短时间内完成。操纵机构和介质通路隔开使隔膜阀不仅适用于食品和医药卫生工业生产，而且也适用于一些难以输送的和危险的介质。更多种人造合成橡胶和工程塑料的应用，以及更广泛地选择阀体衬里材料，使隔膜阀在现代工业的各个领域都得到广泛的应用。 　　隔膜阀分类 　　隔膜阀按结构形式可分为：屋式、直流式、截止式、直通式、闸板式和直角式六种；连接形式通常为法兰连接；按驱动方式可分为手动、电动和气动三种，其中气动驱动又分为常开式、常闭式和往复式三种。

“ Diaphragm Valve Features and Principles ”是由提供的国际阀门新闻，译文仅供参考。另外，中国隔膜阀网还提供相关产品搜索：、、、、等。

原文：
The main advantage of membrane valves is its manipulation of institutions and the media channels are separated, not only to ensure the purity of the working media, but also to prevent the pipeline in the media, the impact of the possibility of manipulation of body parts work. In addition, the stem Department does not require the use of any form of a separate seal, except in the control of harmful use of the facility as a safe medium.medium. British Standard Diaphragm Valves work by the diaphragm and the body temperature is usually used for lining materials, limiting its operating temperature range of about -50 ~ 175 degrees. Diaphragm Valves simple structure, only by the valve body, diaphragm and valve cover assemblies constitute the three main components. This valve is easy quick demolition and repair and replacement of membranes in the scene and a short time. And media access control mechanism to enable Diaphragm Valves applies not only to separate the food and medical and health of industrial production, but also applies to a number of difficult and dangerous transmission medium. More kinds of synthetic rubber and engineering plastics applications, and a wider selection of body lining material to diaphragm valves in the various fields of modern industry have been widely used. Diaphragm Valves Category Diaphragm Valves can be classified according to structure: housing type, DC type, closed type, straight type, gate type and right-angle type six; connection usually takes the form of flange connection; by driving method can be divided into manual, electric and pneumatic three kinds of , where pneumatic drives are divided into open-type, and often closed, and three kinds of reciprocating.