這篇文章都是關(guān)于閥門生產(chǎn)廠家的，以及各種類型的閥門和配件的可用。閥門是機(jī)械或機(jī)電裝置，用于控制液體、氣體、粉末等通過管道或管道，或從罐體或其他容器中的運(yùn)動。在大多數(shù)情況下，閥門釋放某種形式的機(jī)械屏障--例如，一個板、一個球、一個隔膜--它們可以插入并從經(jīng)過的物質(zhì)的流動流中移除。一些閥門被設(shè)計為開關(guān)品種，而另一些則允許對介質(zhì)的通過進(jìn)行非常精細(xì)的控制。

　　This article is all about valves, and the various types of valves and fittings available. Valves are mechanical or electro-mechanical devices that are used to control the movement of liquids, gases, powders, etc. through pipes or tubes, or from tanks or other containers. In most instances, valves rely on some form of mechanical barrier—a plate, a ball, a diaphragm, for example—that can be inserted and removed from the flow stream of the material passing by. Some valves are designed as on-off varieties, while others allow very fine control of the passage of media.

　　盲閥，或線盲閥，是用來阻止流過管道的機(jī)械裝置。它們主要被石油和天然氣工業(yè)用作隔離管道的一種手段。這個閥門也被稱為管道百葉窗。主要規(guī)格包括閥門類型，執(zhí)行器類型，端口連接，閥門尺寸，以及閥體的材料，閥座，密封和襯里。盲閥是常見的船舶和海上平臺。它們提供一個可見的、立即的指示，說明管道是打開的還是關(guān)閉的，并用于隔離管道的各個部分以便于維護(hù)。

　　Blind Valves, or line blind valves, are mechanical devices used to stop flow through a pipeline. They are used primarily by the oil and gas industries as a means of isolating sections of a pipeline. Thes valves are also known as Piping Blinds. Key specifications include valve type, actuator type, port connections, valve size, as well as the material of the valve body, its seat, seal, and lining. Blind valves are common on ships and offshore platforms. They provide a visible, immediate indication as to whether a pipe is open or closed and are used to isolate portions of a pipeline to allow maintenance.

　　蝶閥是四分之一轉(zhuǎn)向閥，采用安裝的圓形瓣，進(jìn)入和流出的流動流。關(guān)鍵規(guī)格包括端口連接，閥門大小，以及組成閥體、閥座、密封、閥瓣和閥桿填料的材料。多用于廢水處理廠、發(fā)電廠和用于關(guān)閉和調(diào)節(jié)及隔離的過程。尤其是在大口徑管道中受到歡迎。蝶閥通常比相同容量的球閥更小、更便宜，很難在高壓和高壓下工作。它們也比球閥更容易漏水，而且會造成更高的頭部損失.

　　Butterfly Valves are quarter-turn valves which employ center-mounted circular flaps that swing into, and out of, the flow stream. Key specifications include port connection, valve size, and the materials that make up the valve body, its seat, seal, disc, and stem packing. Butterfly valves are used in wastewater plants, power plants, and process plants for shut-off and for regulating and isolating service and are especially popular in very large diameter pipelines. Generally smaller and cheaper than a ball valve of the same capacity, butterfly valves can be difficult to operate against high pressure and flow. They are also more leak-prone than ball valves and subject to higher head losses.

　　以上就是一些閥門生產(chǎn)廠家的知識，希望對大家了解閥門有所幫助，同時歡迎大家實(shí)地考察。