一、球阀的特点

　　1、 Characteristics of ball valves

　　1.耐磨:由于硬密封球阀的阀芯是合金钢喷焊密封圈是合金钢堆焊，所以硬密封球阀在开关时不会产生太大的磨损。(它的硬度系数为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:由于硬密封球阀的密封是采用人工研磨，直到阀芯与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.开关轻:由于硬密封球阀的密封圈底部采用弹簧使密封圈与阀芯紧紧抱在一起，所以在外界力量超过弹簧的预紧力时开关非常轻。

　　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.使用寿命长:已广泛应用于石油、化工、发电、造纸、原子能、航空、火箭等各部门，以及人们日常生活中。二、球阀的优点1.流体阻力小，全通径的球阀基本没有流阻。

　　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.结构简单、体积小、重量轻。

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

　　3.紧密可靠。它有两个密封面，而且球阀的密封面材料广泛使用各种塑料，密封性好，能实现完全密封。在真空系统中也已广泛使用。

　　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，开闭迅速，从全开到全关只要旋转90°，便于远距离的控制。

　　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.维修方便，球阀结构简单，密封圈一般都是活动的，拆卸更换都比较方便，

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

　　6.在全开或全闭时，球体和阀座的密封面与介质隔离，介质通过时，不会引起阀门密封面的侵蚀。

　　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.适用范围广，通径从小到几毫米，大到几米，从高真空至高压力都可应用。

　　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.由于球阀在启闭过程中有擦拭性，所以可用于带悬浮固体颗粒的介质中。加工精度高，造价昂贵，高温中不宜使用，如管道内有杂质，容易被杂质堵塞，导致阀门无法打开。

　　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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