進(jìn)口氣動(dòng)球閥的作用及優(yōu)點(diǎn)
進(jìn)口氣動(dòng)球閥的簡(jiǎn)介：
美國(guó)歐可氣動(dòng)球閥是由旋塞閥演變而來(lái),它具有相同的旋轉(zhuǎn)90度動(dòng)作，不同的是旋塞體是球體，有圓形通孔或通道通過(guò)其軸線。氣動(dòng)球閥只需要用氣動(dòng)執(zhí)行器用氣源旋轉(zhuǎn)90度的操作和很小的轉(zhuǎn)動(dòng)力矩就能關(guān)閉嚴(yán)密。完全平等的閥體內(nèi)腔為介質(zhì)提供了阻力很小、直通的流道。通常認(rèn)為球閥最適宜直接做開(kāi)閉使用，但近來(lái)的發(fā)展已將球閥設(shè)計(jì)成使它具有節(jié)流和控制流量之用。球閥的主要特點(diǎn)是本身結(jié)構(gòu)緊湊，易于操作和維修，適用于水、溶劑、酸和天然氣等一般工作介質(zhì)，而且還適用于工作條件惡劣的介質(zhì)，如氧氣、過(guò)氧化氫、甲烷和乙烯等。球閥閥體可以是整體的，也可以是組合式的。
進(jìn)口氣動(dòng)球閥的作用：
美國(guó)歐可氣動(dòng)球閥的工作原理是靠旋轉(zhuǎn)閥芯來(lái)使閥門(mén)暢通或閉塞。氣動(dòng)球閥開(kāi)關(guān)輕便，體積小，可以做成很大口徑，密封可靠，結(jié)構(gòu)簡(jiǎn)單，維修方便，密封面與球面常在閉合狀態(tài)，不氣動(dòng)球閥易被介質(zhì)沖蝕，在各行業(yè)得到廣泛的應(yīng)用。氣動(dòng)球閥和旋塞閥是同屬一個(gè)類(lèi)型的閥門(mén)，只有它的關(guān)閉件是個(gè)球體，球體繞閥體中心線作旋轉(zhuǎn)來(lái)達(dá)到開(kāi)啟、關(guān)閉的一種閥門(mén)。
進(jìn)口氣動(dòng)球閥的優(yōu)點(diǎn)：
美國(guó)歐可氣動(dòng)球閥在管路中主要用來(lái)做切斷速度快、分配和改變介質(zhì)的流動(dòng)方向。氣動(dòng)球閥是近年來(lái)被廣泛采用的一種新型閥門(mén)，它具有以下優(yōu)點(diǎn)：1.流體阻力小，其阻力系數(shù)與同長(zhǎng)度的管段相等。2.結(jié)構(gòu)簡(jiǎn)單、體積小、重量輕。3.緊密可靠，目前球閥的密封面材料廣泛使用塑料、密封性好，在真空系統(tǒng)中也已廣泛使用。4.操作方便，開(kāi)閉迅速，從全開(kāi)到全關(guān)只要旋轉(zhuǎn)90°，便于遠(yuǎn)距離的控制。5.維修方便，氣動(dòng)球閥結(jié)構(gòu)簡(jiǎn)單，密封圈一般都是活動(dòng)的，拆卸更換都比較方便。6.在全開(kāi)或全閉時(shí)，球體和閥座的密封面與介質(zhì)隔離，介質(zhì)通過(guò)時(shí)，不會(huì)引起閥門(mén)密封面的侵蝕。7.適用范圍廣，通徑從小到幾毫米，大到幾米，從高真空至高壓力都可應(yīng)用。8.因?yàn)闅鈩?dòng)球閥動(dòng)力源采用的是氣體，一般為0.2-0.8MPa壓力，相對(duì)比較安全。氣動(dòng)球閥如果漏氣的話，相對(duì)液動(dòng)、電動(dòng)來(lái)說(shuō)，氣體可以直接排出，對(duì)環(huán)境沒(méi)有污染，同時(shí)具有較高的安全性。9.相對(duì)于手動(dòng)和渦輪轉(zhuǎn)動(dòng)球閥來(lái)說(shuō)，氣動(dòng)球閥可以大口徑配置，(手動(dòng)和渦輪轉(zhuǎn)動(dòng)球閥一般都在DN300口徑以下，氣動(dòng)球閥目前可以達(dá)到DN1200口徑。)氣動(dòng)球閥已廣泛應(yīng)用于石油、化工、發(fā)電、造紙、原子能、航空、火箭等各部門(mén)，以及人們?nèi)粘Ｉ钪小?/FONT>
Introduction of imported pneumatic ball valve:
USA and Europe Pneumatic ball valve was evolved from plug valve, it has the same rotation of 90 degrees of movement, different cocks body is a sphere, a circular through-hole or channel through its axis. Pneumatic valve only need pneumatic actuators used in gas source rotated 90 degrees to operate and a small torque can be closed tightly. Complete equality of the body cavity of the media to provide a little resistance, through the flow channel. Usually considered the most suitable valve directly to do the opening and closing to use, but recent developments have ball valve is designed to give it throttle and control the flow. The main features of valve is its own compact, easy operation and maintenance, and for general working media such as water, solvent, acid and gas, but also for the poor working conditions of media, such as oxygen, hydrogen peroxide, methane and ethylene. Ball valve can be a whole, can also be combined.
The role of imported pneumatic ball valves:
USA and Europe working principle of pneumatic ball valve by rotating the spool to make smooth or occlusion. Pneumatic ball valve switch is lightweight, small size, can be made into a large caliber, reliable sealing, simple structure, easy maintenance, sealing surface and the spherical often in the closed state, pneumatic ball easily medium erosion, has been widely used in various industries. Pneumatic ball valves and plug valves is the same type of valve closure is a sphere, a sphere around the body centerline rotation to achieve open and closed a valve.
Imported pneumatic ball valve advantages:
USA and Europe pneumatic ball valve is mainly used to cut off speed, distribution, and changing the media flow direction in the pipeline. Pneumatic ball valve is a new type of valve in recent years has been widely used, it has the following advantages: 1. Fluid resistance is small, the drag coefficient with the length of the barrel equal. Simple structure, small size and light weight. Closely reliable valve sealing surface materials widely used plastic, good sealing in the vacuum system has been widely used. Easy to operate, opening and closing rapidly, from fully open to fully closed rotated 90 ° to facilitate remote control. Easy maintenance, simple structure, pneumatic ball valves, and seals are generally activities, removal of the replacement is more convenient. (6) in the fully open or fully closed, the ball and seat sealing surface and the dielectric isolation, through the media, does not cause erosion of the valve sealing surface. 7 for a wide range of diameter from small to several millimeters, a few meters from the high vacuum to high pressure can be applied. Pneumatic ball power source is a gas, usually 0.2-0.8MPa pressure, relatively safe. Pneumatic ball valve leak, the relative hydraulic, electric, gas can be directly discharged to the environment, no pollution, but also has high security. . Phase For manual and turbine rotating ball valve, pneumatic valve can large-diameter configuration (manual and turbine rotating ball valves are generally below the DN300 caliber, pneumatic valve can now achieve the the DN1200 caliber.) Pneumatic ball valves have been widely used in petroleum, chemical
