1、止推軸承減小閥桿摩擦力矩，可使閥桿操作平穩(wěn)靈活。
1. The thrust bearing reduces the friction torque of the valve rod, which can make the operation of the valve rod stable and flexible.
2、防靜電功能：在球體、閥桿、閥體之間設(shè)置彈簧，能將開(kāi)關(guān)過(guò)程中產(chǎn)生的靜電導(dǎo)出。
2. Anti-static function: a spring is set between the ball, valve rod and valve body to export the static electricity generated during the switching process.
3、由于聚四氟乙烯等材料具有良好的自潤(rùn)滑性，與球體的摩擦損失小，故氣動(dòng)球閥的使用壽命長(zhǎng)。
3. Because PTFE and other materials have good self-lubrication and small friction loss with the ball, the service life of pneumatic ball valve is long.
4、流體阻力?。簹鈩?dòng)球閥是所有閥門(mén)分類中流體阻力較小的一種，即使是縮徑氣動(dòng)球閥，其流體阻力也相當(dāng)小。
4. Small fluid resistance: pneumatic ball valve is one of the smaller fluid resistance in all valve categories. Even the reduced diameter pneumatic ball valve, its fluid resistance is also quite small.
5、閥桿密封可靠：由于閥桿只作轉(zhuǎn)動(dòng)運(yùn)動(dòng)而不做升降運(yùn)動(dòng)，閥桿的填料密封不易破壞，且密封能力隨著介質(zhì)壓力的增高而增大。
5. Reliable sealing of valve rod: because the valve rod only rotates without lifting, the packing seal of valve rod is not easy to be damaged, and the sealing capacity increases with the increase of medium pressure.
6、閥座密封性能好：采用聚四氟乙烯等彈性材料制成的密封圈，結(jié)構(gòu)易于密封，而且氣動(dòng)球閥的閥封能力隨著介質(zhì)壓力的增高而增大。
6. Good sealing performance of valve seat: the sealing ring made of polytetrafluoroethylene and other elastic materials is easy to seal, and the sealing capacity of pneumatic ball valve increases with the increase of medium pressure.
7、流體阻力小，全通徑的球閥基本沒(méi)有流阻。
7. The fluid resistance is small, and the full-bore ball valve basically has no flow resistance.
8、結(jié)構(gòu)簡(jiǎn)單、體積小、重量輕。
8. Simple structure, small size and light weight.
9、緊密可靠。它有兩個(gè)密封面，而且球閥的密封面材料廣泛使用各種塑料，密封性好，能實(shí)現(xiàn)密封。在真空系統(tǒng)中也已廣泛使用。
9. Tight and reliable. It has two sealing surfaces, and the sealing surface material of the ball valve is widely used with various plastics, which has good sealing performance and can achieve sealing. It has also been widely used in vacuum systems.
10、操作方便，開(kāi)閉迅速， 球閥 從全開(kāi)到全關(guān)只要旋轉(zhuǎn)90°，便于遠(yuǎn)距離的控制。
10. It is easy to operate and open and close quickly. The ball valve only needs to rotate 90 ° from full open to full close, which is convenient for remote control.
11、維修方便，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。
11. Convenient maintenance, simple structure of ball valve, movable sealing ring, easy disassembly and replacement.
12、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。
12. When the valve is fully open or closed, the sealing surfaces of the ball and valve seat are isolated from the medium. When the medium passes through, it will not cause the erosion of the valve sealing surface.
13、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。
13. It can be used in a wide range of applications, ranging from a few millimeters to several meters in diameter, from high vacuum to high pressure.
14、由于球閥在啟閉過(guò)程中有擦拭性，所以可用于帶懸浮固體顆粒的介質(zhì)中。
14. Because the ball valve can be wiped during opening and closing, it can be used in the medium with suspended solid particles.
15、加工精度高，造價(jià)昂貴，高溫中不宜使用，如管道內(nèi)有雜質(zhì)，容易被雜質(zhì)堵塞，導(dǎo)致閥門(mén)無(wú)法打開(kāi)。
15. High processing accuracy, high cost, and not suitable for use in high temperature. If there are impurities in the pipeline, it is easy to be blocked by impurities, resulting in the valve can not be opened.
This article is contributed by Shanghai Lianggong Valve Shandong Sales Office. For more information, please click: http://www.egsam.com Sincere attitude. We will provide you with comprehensive services. We will continue to offer you more relevant knowledge. Please look forward to it
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