進(jìn)口氣動(dòng)真空球閥
德國(guó)進(jìn)口氣動(dòng)真空球閥與進(jìn)口氣動(dòng)真空蝶閥的區(qū)別：
進(jìn)口氣動(dòng)真空球閥是適用于真空系統(tǒng)中接通或切斷管路的介質(zhì)流。進(jìn)口氣動(dòng)高真空球閥以4-7公斤的壓縮空氣為動(dòng)力，通過(guò)控制氣動(dòng)元件如電磁換向閥來(lái)改變氣路方向，執(zhí)行氣缸推動(dòng)使球閥做啟閉運(yùn)動(dòng)。閥門(mén)為直通式，靠球面密封，因而既能用在真空狀態(tài)下，也能在低壓狀態(tài)下使用。并可以任意位置安裝。進(jìn)口氣動(dòng)高真空球閥適用的工作介質(zhì)為帶酸、堿性的氣體或液體。適用的介質(zhì)溫度：標(biāo)準(zhǔn)密封件-25～ 120度 耐高溫密封件-25～ 230度
The difference between imported pneumatic vacuum ball valve and imported pneumatic vacuum butterfly valve:
Imported pneumatic vacuum ball valve is suitable for vacuum system to connect or cut off the pipeline flow. Imported pneumatic high vacuum ball valve with 4-7 kg of compressed air as the driving force, through the control of pneumatic components, such as solenoid directional valve to change the direction of the gas, the implementation of the cylinder to push the ball to do the opening and closing movement. The valve is a straight through type, which is sealed by a spherical surface, so that the utility model can be used in a vacuum state and can also be used in a low voltage state. And can be installed in any position. Imported pneumatic high vacuum ball valve for the working medium with acid, alkaline gas or liquid. Applicable medium temperature: -25 ~ 120 degrees of high temperature seal -25 ~ 230 degrees
進(jìn)口氣動(dòng)真空球閥連接方式概述：
法蘭連接這是閥門(mén)中用得zui多的連接形式。按結(jié)合面形狀又可分為以下幾種：光滑式：用于壓力不高的真空球閥。加工比較方便凹凸式：工作壓力較高,可使用中硬墊圈榫槽式：可用塑性變形較大的墊圈,在腐蝕性介質(zhì)中使用較廣泛,密封效果較好。梯形槽式：用橢圓形金屬環(huán)作墊圈，使用于工作壓力≥64公斤/平方厘米的高真空球閥,或高溫高真空球閥。透鏡式：墊圈是透鏡形狀,用金屬制作。用于工作壓力≥100公斤/平方厘米的高壓高真空球閥，或高溫高真空球閥。O形圈式：這是一種較新的法蘭連接形式，它是隨著各種橡膠O形圈的出現(xiàn)，而發(fā)展起來(lái)的，它在密封效果上比一般平墊圈可靠。
螺紋連接這是一種簡(jiǎn)便的連接方法,常用于小閥門(mén)。又分兩種情況：直接密封：內(nèi)外螺紋直接起密封作用。為了確保連接處不漏,往往用鉛油、線麻和聚四氟乙烯生料帶填充；其中聚四氟乙烯生料帶,使用日見(jiàn)廣泛；這種材料耐腐蝕性能很好,密封效果,使用和保存方便,拆卸時(shí),可以完整地將其取下,因?yàn)樗且粚訜o(wú)粘性的薄膜,比鉛油、線麻*得多。間接密封：螺紋旋緊的力量,傳遞給兩平面間的墊圈,讓墊圈起密封作用。
Introduction of the connection way of imported pneumatic vacuum ball valve:
Flange connection this is the most used in the valve connection form. According to the shape of the surface can be divided into the following categories: smooth: for high pressure vacuum ball valve. The processing is more convenient bump type: a higher pressure can be used in hard gasket groove type: plastic deformation larger washers can be used, is widely used in the corrosive medium, the sealing effect is good. Trapezoidal trough: Oval metallic ring gaskets, high vacuum valve used in working pressure greater than 64 kg / cm2, or high temperature and high vacuum valve. Lens type: gasket is a lens shape, with metal production. For working pressure greater than 100 kg / cm2 high-pressure high vacuum valve, high temperature or high vacuum valve. O ring type: This is a new form of flange connection, it is with the emergence of a variety of rubber O ring, and developed, it is more reliable than the general flat gasket sealing effect.
Threaded connection is a simple connection method, commonly used in small valves. There are two cases: direct seal: internal and external threads directly from the sealing effect. In order to ensure that connections do not leak, often lead oil, hemp and PTFE filled with raw materials; including Teflon tape, become more widely used; good corrosion resistance of this material, the sealing effect is excellent, easy to use and preservation, demolition, you can be compley removed, because it is a layer of film inviscid, than lead oil, hemp is much better. Indirect sealing: threads power transmission between the two flat washers, washers for sealing function.
