一、球閥的特點

　　1、 Characteristics of ball valves

　　1.耐磨:由于硬密封球閥的閥芯是合金鋼噴焊密封圈是合金鋼堆焊，所以硬密封球閥在開關時不會產生太大的磨損。(它的硬度系數為65-70):

　　1. Wear resistance: As the valve core of the hard sealed ball valve is made of alloy steel spray welded and the sealing ring is made of alloy steel overlay, the hard sealed ball valve will not experience significant wear when opened or closed. (Its hardness coefficient is 65-70):

　　2.密封性能好:由于硬密封球閥的密封是采用人工研磨，直到閥芯與密封圈完全吻合才能使用。所以他的密封性能是可靠的。

　　2. Good sealing performance: Due to the use of manual grinding for the sealing of hard sealed ball valves, they can only be used when the valve core and sealing ring are completely aligned. So his sealing performance is reliable.

　　3.開關輕:由于硬密封球閥的密封圈底部采用彈簧使密封圈與閥芯緊緊抱在一起，所以在外界力量超過彈簧的預緊力時開關非常輕。

　　3. Light switch: Due to the use of a spring at the bottom of the sealing ring of the hard sealed ball valve to tightly hold the sealing ring and valve core together, the switch is very light when external forces exceed the pre tightening force of the spring.

　　4.使用壽命長:已廣泛應用于石油、化工、發(fā)電、造紙、原子能、航空、火箭等各部門，以及人們日常生活中。二、球閥的優(yōu)點1.流體阻力小，全通徑的球閥基本沒有流阻。

　　4. Long service life: It has been widely used in various sectors such as petroleum, chemical, power generation, papermaking, atomic energy, aviation, rockets, and people's daily lives. 2、 Advantages of ball valves: 1. Low fluid resistance, full bore ball valves have almost no flow resistance.

　　2.結構簡單、體積小、重量輕。

　　2. Simple structure, small size, and light weight.

　　3.緊密可靠。它有兩個密封面，而且球閥的密封面材料廣泛使用各種塑料，密封性好，能實現(xiàn)完全密封。在真空系統(tǒng)中也已廣泛使用。

　　3. 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 complete sealing. It has also been widely used in vacuum systems.

　　4.操作方便，開閉迅速，從全開到全關只要旋轉90°，便于遠距離的控制。

　　4. Easy to operate, quick opening and closing, only need to rotate 90 ° from fully open to fully closed, making it convenient for remote control.

　　5.維修方便，球閥結構簡單，密封圈一般都是活動的，拆卸更換都比較方便，

　　5. Easy maintenance, simple ball valve structure, and generally movable sealing rings make disassembly and replacement relatively convenient,

　　6.在全開或全閉時，球體和閥座的密封面與介質隔離，介質通過時，不會引起閥門密封面的侵蝕。

　　When fully open or fully closed, the sealing surfaces of the ball and valve seat are isolated from the medium, and when the medium passes through, it will not cause erosion of the valve sealing surface.

　　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用。

　　7. It has a wide range of applications, with diameters ranging from a few millimeters to several meters, and can be used from high vacuum to high pressure.

　　8.由于球閥在啟閉過程中有擦拭性，所以可用于帶懸浮固體顆粒的介質中。加工精度高，造價昂貴，高溫中不宜使用，如管道內有雜質，容易被雜質堵塞，導致閥門無法打開。

　　Due to the wiping property of ball valves during opening and closing, they can be used in media with suspended solid particles. High processing accuracy, expensive cost, not suitable for use at high temperatures. If there are impurities in the pipeline, it is easy to be blocked by impurities, causing the valve to fail to open.

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